Identify any weed. Know exactly what's growing in your lawn.
Upload a photo of any weed. Get the species name, how invasive it is, and what to do about it. Free, 1 identification per day.
Upload a clear photo including the leaves and stem
JPG, PNG or WebP · Max 4 MB · 1 free identification per day
- Focus on leaves or flowers — avoid blurry or backlit shots
- One plant per photo works best
- Natural light gives the most accurate results
Common Lawn and Garden Weeds
Knowing what you're dealing with is the first step. These are the most common weeds — all identifiable from a single photo.
Dandelion
Taraxacum officinale
Deep taproot — pull before it sets seed. Pre-emergent herbicide prevents germination.
Crabgrass
Digitaria spp.
Annual grassy weed. Pre-emergent herbicide in early spring is the most effective control.
Broadleaf Plantain
Plantago major
Low rosette, tolerates foot traffic. Hand-pull or spot-treat with selective herbicide.
White Clover
Trifolium repens
Fixes nitrogen, sometimes desirable. Crowd it out with thick lawn grass.
Chickweed
Stellaria media
Cool-season annual. Hand-pull or mow before flowering and seed set.
Ground Ivy
Glechoma hederacea
Spreads aggressively in shade. Hard to eradicate without broadleaf herbicide.
Bindweed
Convolvulus arvensis
Deep spreading roots. One of the most persistent garden weeds — repeated removal required.
Oxalis
Oxalis spp.
Seed pods explode when disturbed. Remove before flowering to avoid spread.
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Frequently Asked Questions
How do I identify a weed from a photo?
Upload a clear photo of the weed, including its leaves and stem. The AI identifies the species and gives you basic information about the plant.
What is the most common lawn weed?
The most common lawn weeds are dandelion (Taraxacum officinale), crabgrass (Digitaria), broadleaf plantain (Plantago major), clover (Trifolium repens), and chickweed (Stellaria media).
Are there weeds that are toxic to dogs or cats?
Yes. Some weeds are toxic to pets, including wild parsnip, hemlock, foxglove, and nightshade. If you find an unfamiliar plant near your pets, identify it immediately.
Is this weed identifier free?
Yes. The free web tool allows 1 weed identification per day. Download the Olmi app for unlimited identifications.
How do I get rid of weeds without killing my lawn?
It depends on the weed. Broadleaf weeds respond to selective herbicide. Grassy weeds like crabgrass need pre-emergent treatment. Dandelions pull clean by hand before seeding.
Can I identify invasive plants with this tool?
Yes. The AI is trained on hundreds of thousands of species, including common invasives like Japanese knotweed, English ivy, kudzu, and garlic mustard.