Broadleaf Plantain: identify it, treat it, keep it out
Broadleaf plantain is a perennial rosette weed with wide, ribbed, oval leaves that hug the ground below mower height. Like goosegrass, it flags compacted soil. It regrows from a fibrous root crown each year and sends up distinctive rat-tail seed stalks all summer.
How to identify broadleaf plantain
- Wide oval leaves with prominent parallel veins, arranged in a flat rosette
- Leathery, often wavy leaf edges; leaves can look almost cabbage-like in rich soil
- Skinny green seed stalks like rat tails rising a few inches above the rosette
- Persists in the same spots year after year, especially compacted areas
Not sure this is your weed? Snap a photo and our AI will identify the problem with treatments matched to your grass type.
When to treat
Treatment (post-emergent)
Best time: Spring or fall
Target stage: Actively growing
Conditions: Apply when weeds are dry · No rain for 24 hours · Temps 60-80°F
Germination starts around 45°F soil temperature (optimal 60°F). Track your ZIP's live soil temperature or get an exact plan from the herbicide timing calculator.
Control plan
- 1Improve soil aeration to address underlying cause
- 2Use selective herbicides in spring or fall
- 3Remove manually if few plants present
- 4Improve lawn density to prevent establishment
Good to know
- • Indicates compacted soil conditions
- • Has medicinal properties but unwanted in lawns
- • Can be controlled with selective herbicides
- • Often found in high-traffic areas
Products that work on broadleaf plantain
These picks are not filtered to your lawn. Some herbicides damage certain grasses (atrazine is for warm-season lawns; Trimec harms St. Augustine). Verify your grass type on the product label before applying, or use the herbicide timing calculator for grass-filtered recommendations. As an Amazon Associate we earn from qualifying purchases.
curative
SpeedZone EW Lawn Weed Killer
Fast-acting lawn weed killer for cool-season lawns that targets dandelion, clover, spurge, plantain, and other listed weeds.
SpeedZone gives fast broadleaf knockdown when plantain is actively growing.
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curative
Trimec Classic
Classic three-way broadleaf herbicide for tolerant lawns when you need dependable control of clover, dandelion, plantain, and chickweed.
Trimec is a dependable plantain option on tolerant turf.
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recovery
GS Plant Foods Liquid Humic Acid
Leonardite-derived humic acid that improves soil structure and nutrient availability. OMRI listed, 1 gallon.
Plantain often follows compacted, tired soil. Pair control with soil recovery.
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Where it's most common
Frequently asked questions
When should I treat plantain?
Fall is best, same logic as dandelions: the perennial crown is banking energy downward, so a selective broadleaf herbicide translocates to the root. Spring treatments frequently regrow from the crown by midsummer.
Can I just dig plantain out?
Yes. Its fibrous root system comes out more cleanly than a dandelion taproot. Get the whole crown, then seed the bare spot immediately or plantain (or something worse) reoccupies it.
Why do I keep getting plantain in the same strip?
It tolerates compaction and close mowing better than turf does, so it wins high-traffic strips. Aerate that area and raise your mowing height; the weed pressure drops when grass can actually compete.
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