invasive-species

That pretty pink-flowered plant spreading along your local riverbank or woodland edge could be qu...

Invasive shrubs lining your local woodland trail are quietly stealing autumn sunlight from native...

Those clumps of Japanese knotweed or garlic mustard taking over the trail edge could be feeding y...

The strawberries, blueberries, and cherries at your farmers market are under constant threat from...

The wildflowers and rushes in your nearest bog or wetland park are disappearing fastest, replaced...

Invasive plants showing up earlier each spring in your garden or local nature trail aren't just a...

Every time you pull a native plant from a restoration bed only to watch an invasive refill the ga...

The weedy exotic plants taking over your native garden bed may be winning not just by growing fas...

Animals and insects that eat fruit and scatter seeds are the invisible workforce behind every for...

The weeds popping up after construction near your home versus the ones invading a grassland got t...

If you've ever scattered native wildflower seeds across a dry, compacted patch and watched nothin...

Invasive plant diseases are quietly reshaping the forests, gardens, and wild spaces around you — ...

The coastal wetlands near your local beach quietly buffer your neighborhood from storm floods and...

The wheat in your bread may soon need far less pesticide because scientists have identified natur...

Bark beetles killing spruce trees across northern Europe are already a visible threat in many for...

Every garlic mustard plant you pull from your woodland edge before it sets seed stops hundreds of...

If wavyleaf basketgrass has reached a trail or woodland edge near you, the soil beneath it may al...

Native plant restorations often fail quietly in the first few seasons — and this research suggest...

Tomatoes and cucumbers from South Asian farms are increasingly being wiped out by a whitefly-carr...

The mandevilla or gardenia you just bought at the garden center could be carrying a tiny pest tha...

Cherry, raspberry, or blueberry growers: that ornamental honeysuckle or wild sour cherry growing ...

That overgrown lot down the street — full of weeds and cracked concrete — is quietly losing its n...

Dodder, that orange thread-like tangle strangling plants in your garden beds, and the ghost-like ...

Dame's rocket blooming along your neighborhood trail right now looks just like native phlox — kno...

Those tall, fragrant purple-and-white flower clusters lining roadsides and woodland edges right n...

Black ash trees woven into the soggy edges of northern swamps and river corridors are disappearin...

Oregano and cinnamon sprays marketed as natural pest controls for your greenhouse or indoor plant...

Bees, butterflies, and other insects that pollinate your garden rely on CO2 and humidity cues to ...

Every invasive plant spreading through a local nature preserve is running a gauntlet of native co...

If you've hiked through the wide-open sagebrush country of the West, the fate of that landscape —...

Multiflora rose forms impenetrable thickets that crowd out the native shrubs and wildflowers your...

Those showy purple clusters lining roadsides and garden edges in June are dame's rocket, not nati...

It means that what you grew in your garden or farm field last season could be quietly sabotaging ...

If you've ever planted a tree hoping for fruit, this shows how a well-meaning backyard beehive ca...

Better plant identification tools mean the herbal supplement or medicinal tea you buy is more lik...

Better plant DNA identification means the herbs at your farmers market, the wildflowers in your l...

Contaminated soil near old industrial sites, roads, or farms can silently poison food crops and g...

If geese or deer are trampling the native plantings at your local park or nature preserve, target...

That eucalyptus grove or pine plantation at the edge of your local nature reserve may be quietly ...

If this vine reaches the edge of your yard or a nearby trail, it can blanket native shrubs and wi...

If you've noticed fragrant purple flower clusters lining roadsides or spilling into woodland edge...

The tomatoes and squash in your garden may still set fruit fine even as native bee sightings dwin...

Desert wildflower displays you might drive out to see in the Coachella Valley — from spring annua...

That weedy, white-flowered plant taking over disturbed roadsides and vacant lots near you — parth...

Carrot weevils can devastate home and commercial carrot crops with no fully effective control met...

A plant you might find listed as endangered in a botanical garden catalog could be the same speci...

That pink-and-white flowering vine carpeting the highway median and creeping into trail edges nea...

Crops in your grocery store, the trees in your local park, and the wildflowers in your garden are...

Flowering-rush crowds out the native cattails and sedges that waterfowl nest in and that filter r...

Fall armyworms chew through corn, sorghum, and rice fields across six continents every season, an...

The bees pollinating your vegetable garden and fruit trees carry gut bacteria shaped by the local...

Wild chokecherries lining the trails and roadsides near you may be hosting a pathogen that's quie...

The contaminated vacant lot or roadside ditch near you might be cleanable by a plant most people ...

Every new road, rail line, or trail cut through natural land quietly rewires the soil biology und...

If spider mites are shredding your rose bushes or pepper plants, the species doing the damage mat...

Palm swamps like the Veredas of central Brazil anchor the dry-season water table that feeds strea...

If you grow walnuts or buy them locally, a new pest is quietly taking over the orchards that prod...

Fall armyworm can wipe out an entire corn or vegetable garden in days, and knowing which insectic...

Truffles are cultivated as a high-value crop by planting inoculated trees, and understanding whet...

Weeds like barnyardgrass are becoming resistant to common herbicides, and these dragonfly gut fun...

Oxeye daisy spreads aggressively into meadows and roadsides, crowding out the native wildflowers ...

Next time you spot a bumblebee hovering at the base of a tubular flower instead of its mouth, you...

Garlic mustard is likely already colonizing the edges of your local park or garden right now — an...

That flat white umbel bobbing along the roadside or field edge is wild carrot, the direct ancesto...

Water hyacinth — that fast-spreading plant choking up lakes and waterways worldwide — could be de...

That murky blue water you've seen downstream from textile factories could be cleaned using the sa...

Soil contaminated with industrial nanoparticles can leach into your vegetable garden or local wat...

The native toyon and coffeeberry you buy for a habitat garden or restoration planting could carry...

The shrub with dark berries and leaves that stay green after your maple and ash have turned is pr...

Garlic mustard is probably already creeping into a park, trail, or shaded garden bed near you rig...

If you've ever hiked a Hawaiian rainforest trail canopied by 'ōhi'a lehua blossoms — the scarlet ...

Knowing what poison ivy looks like in its current spring growth form — before leaves fully unfurl...

Dame's rocket lines roadsides and woodland edges every May looking nearly identical to native phl...

Witchweed and broomrape, the vampires of the plant world, already devastate staple crops across A...

That orange spaghetti-like vine strangling your tomatoes or black-eyed Susans isn't just a thief ...

The tiny pollinators working the treetops you never look up at are vanishing just as fast as the ...

The bees, moths, and beetles visiting your garden flowers can take a 40% hit when nearby neighbor...

That stringy orange vine strangling the plants in your garden bed is doing something stranger tha...

The floating water hyacinth choking ponds and waterways worldwide turns out to double as a pollut...

The ponds and slow streams near your home may look clear and healthy while the submerged plants t...

If you've ever grown a rare island plant or visited botanical gardens showcasing Macaronesian flo...

Mangrove restoration projects along coastlines are increasingly using fast-growing exotic species...

Tuckeroo has established itself in South Florida natural areas like The Hammocks, where it can ou...

Invasive plants spreading into natural areas near you may be dragging along foreign fungi that di...

Desert wildflower blooms you might drive hours to see — those explosions of color after a good wi...

Olive groves, lavender fields, and rosemary hedges across southern Europe are being wiped out by ...

If you've ever tried to restore a weedy pond edge or replant a disturbed shoreline, this research...

Poison ivy is actively leafing out right now along trail edges, fence lines, and woodland borders...

Invasive pests and climate-driven range shifts are already reshaping which crops and garden plant...

A plant most pond-keepers wage war against turns out to be one of nature's most effective water p...

Two-spotted spider mites destroy crops and garden plants worldwide, and they're thriving as tempe...

If your allergies flare every August, the weedy plant crowding your sidewalk cracks and vacant lo...

If you garden near old industrial land, roadsides, or anywhere soil might carry heavy metals, thi...

The weedy morning glory vining through fences and overgrown gardens shows that even fast-evolving...

Lambsquarters, pigweed, and foxtail crowd your vegetable beds for the same reason they swamp corn...

Cadmium quietly enters backyard soils through phosphate fertilizers, and understanding how mycorr...

Kudzu, the vine smothering roadsides and forest edges across the American South, turns out to car...

The stubborn weed seeds that keep resprouting in your garden despite years of pulling aren't bein...

The aggressive weed choking out your garden bed or the invasive vine swallowing the fence line do...

A tree you might plant for shade or timber could simultaneously be vanishing from its homeland — ...

Heavenly bamboo berries are toxic to birds and have been spreading from yards into Georgia's nati...

If you've ever grown a banana plant or bought one at the store, this soil-borne fungus is the rea...

If you live near a marsh, pond edge, or ditch, that tall spike of magenta flowers crowding out ca...

Eastern redcedar is rapidly expanding its range into grasslands and open fields near many communi...

Redstem Stork's-bill is one of the most common weeds invading lawns, gardens, and parks across No...

Common reed can aggressively take over wetlands, riverbanks, and even roadside ditches near your ...

If you grow cherries, peaches, or other stone fruit, the leafhoppers quietly feeding on your tree...

That weedy, orange-flowered plant carpeting the shady corners of urban parks and woodland edges m...

Japanese knotweed, the plant many gardeners wage relentless war against along fence lines and riv...

Lantana growing in a park you might walk through this weekend can crowd out native wildflowers an...

Oxeye daisy carpets roadsides and meadows right now — and knowing it helps you spot whether your ...

Stinknet is aggressively invading California's desert parks and wild spaces — the same places you...

Lesser celandine is quietly taking over lawns, stream banks, and woodland gardens across the east...

If you live near a marsh, pond, or ditch, this tall pink-flowered plant can quietly take over the...

Every cabbage, kale, and broccoli plant in your garden is a potential target for the diamondback ...

Coastal wetlands restored with native mangroves are the living seawalls that buffer the shoreline...

Lesser celandine spreads aggressively in shaded, moist areas like park trails and stream banks, c...

Garlic mustard is already spreading through the park you might hike on weekends — it outcompetes ...

Oxeye daisy carpeting roadsides and meadows right now is quietly outcompeting native wildflowers ...

Thrips are tiny enough to hitch a ride on any plant you bring home from a nursery, and the viruse...

If you spot a tall spike of magenta flowers along a ditch or pond edge this week, reporting it he...

Those lumpy growths you notice on shrubs along roadsides and trails are actually the result of an...

If you've noticed aggressive weeds like beggar-ticks taking over disturbed lots near farmland or ...

If you grow plums, cherries, or apricots, the same white flowers that signal spring to you are al...

If you walk the La Jolla Coastal Trail, the tall shrub with tubular yellow flowers you pass may b...

Orange hawkweed spreads aggressively through underground runners and airborne seeds, and once it ...

Princess tree can take over a disturbed hillside or woodland edge in just a few growing seasons, ...

That dense thicket of dark green shrubs crowding the edge of your local woods or trail might be c...

Oxeye daisy blankets roadsides and meadows right now — knowing it helps you spot whether your loc...

Colt's-foot is often one of the first flowers to push through bare ground in late winter, so spot...

The ant trails crisscrossing your garden mulch or a nearby forest floor may be depositing bacteri...

Those pretty blue ground-cover flowers carpeting lawns and woodland edges right now may be Siberi...

Every third bite of food you eat exists because a bee visited a flower first, and the parasites q...

Purple crownvetch spreads aggressively along roadsides and into natural areas, crowding out the n...

Poison ivy is probably already growing along the edges of your yard, local trails, or park — and ...

Those bright yellow daisy-like flowers pushing up through bare soil in early spring — often mista...

Those brilliant blue carpets appearing under trees in parks and yards right now are Siberian squi...

Whiteflies can devastate tomatoes, peppers, and cucumbers in a home garden almost invisibly until...

Herbicide-resistant weeds are quietly spreading across farm fields worldwide, and when a single w...

Creeping Bellflower's deep, brittle root system makes it nearly impossible to pull cleanly from g...

Purple crownvetch can quietly take over a garden bed or roadside verge within a single season, cr...

Creeping Jenny can carpet the forest floor of parks you walk through, crowding out native wildflo...

The stunted, knobby-rooted tomatoes or carrots in your vegetable bed may be infested with root-kn...

Garlic mustard is actively spreading through the woods and parks near you right now, outcompeting...

Poison ivy is actively spreading into backyards, trail edges, and parks right now — knowing what ...

Those cheerful yellow flowers appearing in bare patches along roadsides and disturbed ground righ...

Pear and apple trees in home orchards across Central Asia and increasingly beyond are threatened ...

The same floating weed choking lakes and irrigation canals near your community garden can be turn...

If you grow sorghum or grasses in your garden or admire the wild Johnsongrass relatives along roa...

Poison ivy is probably already growing along the edges of your yard, favorite hiking trail, or ne...

If you grow blueberries, raspberries, or other soft fruit, the wild brambles and berries along yo...

Weedy roadside plants you walk past every day — like black-jack and fleabane — may be quietly pul...

Witchweed and broomrape — parasitic plants controlled partly by their own hormone chemistry — des...

If you've ever watched a weedy, fast-growing tree take over a cleared lot only to see it thin out...

The mosses and low-growing wildflowers holding together tundra soils are being undermined by inva...

Invasive plants spreading along roadsides don't stay there — they hitchhike on vehicles, boots, a...

If you've ever wondered why that aggressive shrub or weed seems to pop up in the same spots every...

The weedy, sun-baked stretch of riverbank you walk past every day could be a mapped restoration h...

The same cordgrass takeovers reshaping salt marshes along the Atlantic and Gulf coasts are quietl...

If you've ever replanted a disturbed patch of your yard and wondered why native wildflowers refus...

The hummingbird feeder in your backyard draws the same birds now shown to carry plastic fibers in...

Common reed can take over the wet edges of trails, ponds, and storm ditches near your neighborhoo...

If you're battling an invasive vine or weed in your yard, this suggests the real threat to your s...

If you've noticed an aggressive weed popping up earlier each year in a field or roadside, this re...

If water hyacinth ever shows up in a pond near you, it can double its coverage in two weeks and c...

The weedy patch along your local road or vacant lot isn't random: disturbed, high-traffic spots a...

If you compost at home or tend a community garden, adding worms to your pile isn't just folklore,...

If you've ever admired a high-elevation pine forest, this research maps out which wild trees carr...

The weeds you're taught to yank from disturbed ground, including a wild Cannabis relative and the...

The fungal disease killing an unusual plant in your garden may be a foreign pathogen that never t...

If you grow potatoes in your own garden, the weeds and nearby alfalfa or grain fields around you ...

If you've noticed a dense, dark-berried shrub crowding out everything else along a trail or fence...

If you've noticed a shrub with glossy dark berries and thorny branches crowding out everything el...

The ferns tucked into your shade border or hanging basket may belong to a group of 93 species alr...

If you've noticed clusters of small yellow flowers with black-dotted petals along roadsides or in...

Those tiny pale stipples appearing on the undersides of your tomato leaves in July are spider mit...

If you've ever seen a pond or canal smothered in thick green rosettes, that plant is being redesi...

If you walk near a marsh, pond edge, or ditch this month, you're likely to spot tall spikes of ma...

The Brazilian pepper tree choking out native habitat along Florida's coasts and Gulf marshes turn...

If you grow cherries, strawberries, or blackberries, the pest flies damaging your fruit are quiet...

If you grow rice or care about how farmers manage pesticide use near contaminated soils, this sho...

If you've ever wondered why some weeds vanish after you till the soil while others pop right back...

If you grow rice, corn, or any grass-family crop, knowing that pests zero in on the leafy young-g...

If you've noticed a shrub with glossy, toothed leaves and dark berries crowding out the understor...

If you've ever topped up a planter with bagged coco peat or coir, you may have unknowingly introd...

That itchy-eyed, sneezy feeling on your evening walk is probably ragweed, and this surge in sight...

If you garden in a dry climate or hike arid landscapes, this shows exactly how shrinking rainfall...

The two-spotted spider mite is one of the most destructive pests on tomatoes, roses, beans, and h...

If you grow chayote (also called christophine or mirliton) on a trellis in your garden, the same ...

The scraggly Siam weed choking roadsides, pastures, and forest edges across the tropics carries r...

If you've ever tried to pull a stubborn weed only to have it return weeks later, this plant's str...

If you walk past a marsh, pond edge, or ditch this month, those tall spikes of purple flowers you...

If you grow a lemon, lime, or orange tree on your patio or in your yard, this tiny psyllid insect...

If you grow beans, peas, or cowpeas, the legume pod borer moth is one of the most damaging pests ...

If you rely on beneficial insects to keep pests off your tomatoes, the soil quality in your garde...

The aphids clustering on your roses or tomato stems can sense overcrowding and switch some offspr...

If you walk wooded trails or pastures this month, those clusters of fuzzy white fall flowers alon...

That patch of scraggly green weed along the sidewalk or in your neglected garden bed is likely co...

If you grow sweet corn in a backyard plot, a speaker that mimics bat calls could one day keep bor...

The aphids clustering on your roses or tomato stems aren't just breeding fast by luck: they're ru...

Aphids feeding on your vegetable garden carry hidden passengers, and understanding what viruses t...

Anyone who's dealt with a stubborn pest infestation in the garden will recognize the trap this re...

If you grow olives, grapes, or almonds, these small hopping insects picking up bacteria from road...

Mustard-family plants in your vegetable beds release compounds that can wake up seeds of parasiti...

The reeds lining wetland trails and drainage ditches are notoriously hard for animals (and indust...

The witchweed and broomrape that devastate cereal and legume fields across Africa and the Mediter...

If you grow blackberries and have noticed hard, sour, red drupelets that never sweeten up at harv...

The microscopic roundworms living in your garden soil carry their own hidden bacterial passengers...

If you've battled cocklebur or similar weeds choking a garden bed or field edge, this means warme...

The aphids and beetles that show up earlier (or later) in your vegetable patch each year aren't j...

If your tomato plants have ever mysteriously wilted and died with gnarled, swollen roots, root-kn...

If you grow cabbage, broccoli, kale, or other brassicas, the diamondback moth is likely already c...

If you've ever noticed a flooded rice field teeming with chirping insects, this study shows that ...

If you've noticed a shrub with glossy oval leaves and small black berries crowding out native pla...

If you've ever wondered why the weeds in a neighbor's orchard or along a farm road keep coming ba...

If you grow mangoes, citrus, or guava, the oriental fruit fly is one of the reasons those crops g...

If you've ever watched a vigorous plant quietly choke out its neighbors in a garden bed, you'll r...

If you've ever grown tomatoes, potatoes, or rice-adjacent grains, this review shows the same dise...

If you grow sorghum or any grain crop, knowing that different aphid pests target young versus old...

Parasitoid wasps are nature's pest controllers — they lay eggs inside aphids, caterpillars, and o...

Henbit deadnettle is likely blooming in your yard, garden beds, or local park right now — and und...

Bird's-foot trefoil creeping into Wauwatosa lawns and roadsides can outcompete native clovers and...

Skunk cabbage is one of the first plants to bloom each spring, and tracking when and where people...

Purple crownvetch spreading along roadsides and into natural areas can outcompete native wildflow...

Common bracken spreading through a woodland edge or disturbed trail corridor can crowd out native...

Foxtail Barley's silky, fox-tail seed heads look stunning in late summer but can work their way i...

Tufted vetch is quietly colonizing Edmonton's roadsides and vacant lots — and while it looks pret...

Lesser celandine spreads aggressively in early spring before native wildflowers emerge, and once ...

Lesser celandine spreads aggressively through stream corridors and can take over your local park ...

That rain-filled cavity in your old oak tree or the pooled water cupped in a backyard bromeliad i...

Oxeye daisy spreading into Ontario roadsides and meadows can quietly crowd out native wildflowers...

Sulphur cinquefoil spreading into roadsides and meadows near you is an early warning sign for a p...

White Sweetclover spreads aggressively along roadsides and disturbed areas near native meadows, c...

Garlic mustard quietly poisons the soil fungi that native wildflowers and tree seedlings depend o...

Chicory growing along roadsides and open fields near you is edible root-to-leaf: the young leaves...

Persian silk tree spreads readily from roadsides and yards into disturbed areas along streams and...

Fire ants tunnel through garden beds, damage plant roots, kill ground-nesting pollinators, and ha...

Prickly cucumber can scramble over shrubs and garden edges with surprising speed in a single seas...

Bifid Hemp-nettle spreads quickly into disturbed soils and garden edges, so spotting it early nea...

White Sweetclover growing in your local park is quietly crowding out the native wildflowers that ...

Garlic mustard growing near your garden or local woods releases chemicals into the soil that kill...

Kudzu — the vine choking forests across the American South — sheds microscopic particles that rew...

Silk trees lining Atlanta's streets and parks are blooming proof that a tree originally from Iran...

If Marvel of Peru is naturalizing in the Permian Basin's harsh alkaline soils, it could be a surp...

Field madder creeps through lawns and garden edges so inconspicuously that most people never lear...

Greater celandine spreads aggressively along disturbed edges and fence lines — if you spot its de...

Sweet Woodruff spreading through Kitchener's green spaces is worth knowing if you're planting a s...

Native plantings in your yard or local nature reserve depend on the same routine of pulling invas...

If you've sprayed a houseplant or greenhouse tomato for spider mites and watched the infestation ...

Soil that looks perfectly healthy on the surface can still be hosting microscopic worms quietly c...

That scrappy purple-leaved weed poking through pavement cracks near big-box stores might be shiso...

If you garden or walk trails in coastal BC, this spiky biennial can take over roadside ditches an...

If you've noticed dense, berry-studded evergreen trees popping up in old fields, fence lines, or ...

If you've walked past a muddy ditch, pond edge, or disturbed field lately, there's a decent chanc...

That fast-growing tree with the funky-smelling leaves popping up along your fence line or in a va...

If you fish, kayak, or garden near a pond in the Willamette Valley, this mat-forming invader can ...

The robotic weeders and precision sprayers increasingly used on farms and even in large gardens u...

If you grow aloe vera on a sunny windowsill or in a garden bed, knowing what causes mushy, rottin...

If you've ever wondered how farms near you manage weeds before planting, this shows drones can do...

The blight, rust, or wilt disfiguring your tomatoes or roses might be misdiagnosed entirely if th...

The fall armyworm behind this study is one of the most destructive caterpillar pests on corn, sor...

If you keep horses, goats, or cattle near Portland, this yellow-flowered weed can poison your pas...

If you spot a tree with huge heart-shaped leaves and purple foxglove-like flowers along a roadsid...

Farmers walking oilseed rape fields could soon point a low-cost camera at a patch and get instant...

Spotting this vine in a remote spot like Frenchglen helps land managers catch invasive species be...

If you've ever seen a pond or lake near your home turn pea-green and scummy in late summer, this ...

That patch of weeds you've been meaning to pull along the garden fence might be quietly incubatin...

If you've ever watched fine webbing and stippled, yellowing leaves take over a tomato plant or a ...

If you hike or garden near canyons and slopes in LA County, this fast-spreading weed can crowd ou...

If you garden anywhere near Anchorage, this yellow-flowered escapee spreads by aggressive undergr...

If you've ever wondered why a tree in a tropical plantation suddenly wilts and dies from the base...

If you toss diseased tomato plants in your compost or a nearby ditch, this virus shows the pathog...

Spotted knapweed releases chemicals into the soil that suppress native plants nearby, so a confir...

Direct-seeding rice saves farmers water and labor compared to transplanting, but weeds like barny...

If you're pulling woody saplings out of a local woodlot or fencerow, there's a good chance it's c...

If you're pulling seedlings out of your garden beds every spring without knowing what they are, t...

If you hike Hawaii's watershed trails, this fast-growing nitrogen-fixer can crowd out the native ...

If you walk the Waterfront Trail near Pickering, you're passing a plant once cultivated across Eu...

If you walk near marshes, ditches, or pond edges in the Great Lakes region, this is the tall spik...

Fall armyworm caterpillars chew through corn, rice, and other crops across entire regions, so a g...

If you've got mulched beds or disturbed soil near Orlando, this orchid might already be growing i...

If you've got a drought-tolerant hedge with small white flowers and clusters of red berries in fa...

If you garden in the Pacific Northwest, this evergreen hedge favorite is quietly seeding itself i...

If you've got birds visiting your yard, the berries on this shrub are a favorite snack, but its s...

If this evergreen groundcover shows up in your own yard or nearby woods, it's likely escaped from...

The oriental fruit fly is a major pest of orchard and garden fruit worldwide, so anything that re...

If you've noticed pink-flowered weeds crowding muddy ditches or pond edges lately, you're probabl...

If you walk a wooded park edge or trail in Canada this fall, you're probably passing clusters of ...

If you grow heirloom tomatoes or save seeds from your own garden, the spread of modified genes in...

If you've ever pulled up a scrubby grass-like weed near a pond or ditch and looked it up, there's...

If you've ever saved seed or traded cuttings with neighbors, this study is a reminder that the sa...

If you grow corn, sunflowers, or fruit trees, understanding when this pest is actually dispersing...

Chinaberry is a toxic invasive tree that can spread into your yard or local park, crowding out na...

European holly has escaped garden cultivation and is spreading into wild areas around Portland, w...

Mock strawberry creeping through your lawn or garden bed is easy to overlook as a weed — but its ...

Greater celandine spreads readily into garden edges, roadsides, and woodland paths near homes, an...

Common toadflax thrives in disturbed urban soils and sidewalk cracks — spotting it in your neighb...

Wild carrot growing along a coastal marsh causeway is a reminder that the ancestor of every groce...

Lesser celandine can carpet your yard, garden beds, and nearby stream corridors every spring befo...

Common ivy can quietly take over your garden beds and nearby woodlands, smothering native wildflo...

Shepherd's-needle can quietly establish itself in garden beds, lawns, and sidewalk cracks near yo...

Camphor trees spreading through Louisiana neighborhoods can quietly crowd out native species whil...

Great mullein growing along a trail you hike is easy to spot and harvest for its long history as ...

Garlic mustard growing near your yard or local forest preserve releases chemicals into the soil t...

Herb Robert is quietly spreading through Pacific Northwest gardens and forest edges, and once est...

Milk thistle spreads aggressively in disturbed soils and roadsides near your neighborhood, and if...

If you spot yellow, dandelion-like flowers popping up on bare stems along a sidewalk crack in ear...

If you've seen a fast-growing tree with white pea-like flowers and thorny branches showing up whe...

If you walk or garden near wetlands and ditches in the Salt Lake Valley, this towering grass can ...

If you garden or hike near Harrison, NY, this barbed vine can blanket shrubs and young trees in a...

That trailing periwinkle vine sold as an easy-care groundcover at the nursery can jump your fence...

The bushy red seaweed you spot on a Honolulu reef walk is likely gorilla ogo, an introduced speci...

If you snorkel, tidepool, or walk the reef flats around Oahu, the spiny red tufts you see are lik...

The Chinaberry with clusters of yellow berries and lilac spring flowers may look like a handsome ...

If you tend a prairie patch, roadside, or vacant lot near Beloit, this tall spiky weed can crowd ...

That cheerful yellow weed popping up in vacant lots and along sidewalks is toxic to horses, cattl...

If you hike Vancouver's shaded trails, this fast-spreading annual can carpet the forest floor and...

If you garden or hike in Hawaii, this tree's sticky seeds spread by birds into wild forest edges,...

Insects disappearing from your garden or local park may be quietly choking on plastic pollution —...

Parasitic wasps are natural pest controllers used in gardens and farms — understanding how they o...

Holm oaks are drought-tolerant Mediterranean trees increasingly planted in California cities, and...

Muscadine grapes are a tough, heat-tolerant native vine that home gardeners in South Florida can ...

Lesser periwinkle is a popular garden ground cover that can escape into wild areas and crowd out ...

Pacific poison oak grows in parks, trails, and neighborhood edges — knowing exactly where it's be...

Tracking where native wetland plants like skunk cabbage are thriving helps communities identify h...

Perez's sea lavender is widely planted in California gardens and along roadsides, and tracking wh...

Field madder is a creeping weed that can quietly invade lawns, gardens, and roadsides near you — ...

Madagascar Periwinkle, a common garden plant in Florida, is also the source of vincristine and vi...

Florida Hedgenettle can quietly spread into your garden beds and lawn edges, so knowing it's esta...

American pokeweed can sprout uninvited in your backyard or garden beds, and every part of it is t...

Black locust spreads aggressively along roadsides and woodland edges near homes, outcompeting nat...

Virginia pepperweed is quietly spreading through parks and gardens in Hawaii, and spotting it ear...

This cheerful yellow flower spreads aggressively through underground roots and can crowd out nati...

This scrappy yellow-flowered plant pops up on disturbed ground and roadside edges well before mos...

If you've got a shady fence line or vacant lot nearby, this purple-flowered vine may already be c...

American pokeweed is a striking but highly toxic native plant that can appear in backyards, parks...

That patch of blue three-petaled flowers popping up in your mulch or garden bed after rain is lik...

That dandelion-lookalike with the giant fluffy seed head towering over trailside grasses is yello...

If you've got bare garden beds or disturbed soil nearby, this fast-seeding weed can show up and t...

If you've ever grown a night-blooming cereus for its one-night flower show, this sighting confirm...

The scraggly weed pushing up through your sidewalk cracks or garden bed edges might be Redroot Am...

If you hike or garden near Whistler, this weedy little lettuce relative is quietly moving into sh...

The corn in your garden or the field down the road is targeted by this exact pest, and this disco...

If you've got a spiny, tomato-like weed popping up in your garden bed that seems to laugh off pul...

If you're weeding a dry, sunny corner of your yard in Southern California and find a fuzzy gray-g...

If you garden in Texas and see a knee-high plant with yellow flowers and spiky burs, this is the ...

The feathery-leaved tree with pale puffball flowers along your Oahu roadside is haole koa, a prol...

Wild radish can take over disturbed roadsides, farm edges, and open spaces in your neighborhood, ...

If you tend a native meadow or pasture near the Northern California coast, this is the plant quie...

That tough little weed mashed flat in your driveway cracks and along foot-worn garden paths is pr...

The bur-covered seed pods on this roadside plant are the same design that inspired Velcro, and it...

That spiky purple-flowered weed pushing through sidewalk cracks near you might be Bull Thistle, a...

If you've battled a scraggly, gray-green weed popping up through sidewalk cracks or garden edges ...

If you've got a butterfly bush in your yard, this sighting is a reminder that the same shrub poll...

If you garden or walk trails in the Pacific Northwest, this reddish-stemmed little geranium poppi...

If you're weeding a garden or hiking trail near the Olympic Peninsula, this is the same aggressiv...

If you've got kids, pets, or a shady fence line in coastal BC, this is the vine with the red-and-...

If you tend a shady garden bed or walk a wooded trail near town, this glossy-leaved vine is likel...

If you're walking trails or greenways around Honolulu, spotting and logging plants like this one ...

If you grow rice or any row crop, this suggests that chasing weeds on an aggressive schedule may ...

If you're weeding a fence line or hiking a local trail in the lower Hudson Valley, this thorny sh...

Motherwort spreads readily along fence lines and garden edges, so if you've seen a scrappy mint-f...

If you walk trails or garden near Wasaga Beach, this tall white-flowered plant popping up in ditc...

If you sneeze every August, the patch of scraggly green weeds along your local roadside might be ...

If you've spotted a towering plant with soft, felt-like leaves and a single flower spike along a ...

Hawthorn can spread into wild areas and outcompete native plants, so knowing exactly where it gro...

Rose Clover is a non-native species spreading through California's open spaces, and community sig...

Great mullein is a prolific colonizer of disturbed soils — roadsides, fields, and garden edges — ...

Common groundsel is a prolific weed that can quickly take over garden beds and is toxic to livest...

Mock strawberry quietly spreads through lawns, gardens, and parks near you — and knowing where it...

Knowing where poison ivy is actively growing helps hikers, gardeners, and parents identify risk a...

Catchweed bedstraw spreads aggressively through gardens and natural areas, clinging to clothes, p...

Red deadnettle is one of the earliest spring bloomers to appear in gardens and lawns, meaning its...