Milkweed sightings stay high across Canada as autumn sets in
iNaturalist Community
Native Plants
If you're growing milkweed for monarch butterflies, this is the time of year the seed pods split open and you can collect seed for next spring's patch.
Common milkweed is still showing up all over Canada on iNaturalist, a free app where people log plant and animal sightings. This week there were 139 sightings, just a bit fewer than last week's 148, which makes sense since the plant is wrapping up its growing season and starting to go to seed.
Key Findings
139 observations of common milkweed logged in Canada over the past 7 days
Down from 148 observations the previous week, a 9-sighting decline
Among the most-observed plant species in Canada this week
chevron_right Technical Summary
Common milkweed is one of the most-observed plants in Canada this week on iNaturalist, with 139 sightings logged, a slight dip from 148 the week before as the species heads into its fall decline.
Abstract Preview
Original paper
Trending: common milkweed (Asclepias syriaca) — 139 observations this week
Common milkweed (Asclepias syriaca) is a species in the family Apocynaceae. iNaturalist users recorded 139 observations of it in Canada in the 7 days before today, among the most for any plant ther...
open_in_new Read full abstractAbstract copyright held by the original publisher.
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Asclepias syriaca, commonly called common milkweed, butterfly flower, silkweed, silky swallow-wort, and Virginia silkweed, is a species of flowering plant. It is native to southern Canada and much of the United States east of the Rocky Mountains, excluding the drier parts of the prairies. It is i...