Beyond the crop: the role of medicinal and aromatic plants in soil carbon sequestration and nitrogen cycling.
Negahban M, Msaada K
Summary
PubMedWhy it matters This matters because the herbs you grow in your garden or see at the farmers' market may actually be quietly rebuilding the soil beneath them, making it richer, more carbon-storing, and more alive with beneficial microbes — meaning growing herbs isn't just good for your kitchen, it's good for the planet.
Medicinal and aromatic plants — think lavender, mint, rosemary, and echinacea — release special chemicals from their roots that attract and shape communities of beneficial soil microbes. These microbes help pull carbon out of the air and into the soil, and help convert nitrogen into forms plants can actually use. Scientists found that mixing these plants into farms and gardens, or planting them alongside trees, amplifies these soil-healing effects and could help fight climate change while reducing the need for chemical fertilizers.
chevron_right Technical Details
Medicinal and aromatic plants like lavender, mint, and basil do more than produce useful compounds — they actively improve soil health by feeding beneficial microbes, locking away carbon, and helping cycle nitrogen. This review shows they could be powerful tools for sustainable, climate-resilient farming.
Key Findings
Medicinal and aromatic plants release secondary metabolites (flavonoids, alkaloids, terpenoids, phenolics) that actively reshape soil microbial communities and boost enzymatic activity linked to nutrient cycling.
Intercropping and agroforestry systems using medicinal and aromatic plants enhance both carbon sequestration and nitrogen fixation while reducing allelopathic (plant self-poisoning) drawbacks.
Emerging technologies — including biochar, nanotechnology, and remote sensing — can amplify the soil benefits of medicinal and aromatic plants, with case studies across multiple regions showing restored degraded soils and reduced greenhouse gas emissions.
Abstract Preview
Medicinal and aromatic plants (MAPs) play a critical yet underexplored role in enhancing soil functionality through their unique phytochemical interactions and ecological adaptability. This review ...
open_in_new Read full abstract on PubMedAbstract copyright held by the original publisher.
Was this useful?
Urban Tree Canopy Reduces Heat-Related Mortality by 39% in European Cities
This matters because the trees in your local park or street aren't just pretty — they are literally keeping people alive during heatwaves, and planting even ...
Lavandula is a genus of 47 known species of perennial flowering plants in the sage family, Lamiaceae. It is native to the Old World, primarily found across the drier, warmer regions of the Mediterranean, with an affinity for maritime breezes.