Weed control uses physical and chemical methods to stop weeds from reaching a mature stage of growth. Weeds can be pesky and intrusive to lawns and gardens. We stock products for just about any weed problem, and our staff can help you identify the weed and choose the right product.
Lawn weed killers
Ferti-lome
Weed-Out with Crabgrass Killer
Lawns. Broadleaf weeds plus crabgrass that has already come up.
Active ingredient: 2,4-D, quinclorac, dicamba
We match it to: large crabgrass, prostrate knotweed, prostrate spurge, field bindweed, foxtail, barnyardgrass, common mallow
When: Below 90°F. Crabgrass from the time it sprouts until it is 3–4 in. tall; broadleaf weeds while small, spring or fall.
How: Hose-end sprayer, steady even pace. Up to 2 times a year, at least 21 days apart.
Good to know: People and pets off until dry. Don’t use clippings from treated grass as mulch or compost.
BioAdvanced
All-in-One Lawn Weed & Crabgrass Killer
Lawns. Broadleaf weeds plus crabgrass that has already come up.
Active ingredient: 2,4-D, quinclorac, dicamba
We match it to: large crabgrass, dandelion, henbit, common chickweed, white clover, prostrate knotweed, prostrate spurge, broadleaf plantain, field bindweed, foxtail, and 15 more
When: Daily highs at or below 90°F, on small, growing weeds. Not while grass is greening up from winter.
How: Coarse spray, about 12 in. from the weed. Water a dry lawn 1–2 days before. Repeat in 2 weeks for tough weeds.
Good to know: Rainproof in 1 hour. Don’t mow for 1–2 days. Seed bare spots after 4 weeks; new lawns after the 4th mowing. Off until dry.
Sedgehammer
Sedgehammer+
Lawns: established tall fescue, Kentucky bluegrass, zoysia and bermuda. Spray yellow nutsedge at the 3–8 leaf stage; a second spray 6–10 weeks later may be needed. No mowing for 2 days before or after.
Active ingredient: halosulfuron
We match it to: yellow nutsedge
When: Nutsedge at the 3–8 leaf stage; a second spray 6–10 weeks later if needed.
How: One pouch in 1 gallon of water per 1,000 sq ft (surfactant already in). Spray until wet.
Good to know: No rain for 4 hours. Don’t mow 2 days before or after. People off until dry.
Ferti-lome
Weed-Out Nutsedge Control
Lawns. Made for nutsedge.
Active ingredient: sulfentrazone, prodiamine
We match it to: yellow nutsedge
When: Nutsedge once it is up and growing; a second spray 30–60 days later if needed.
How: Hose-end sprayer over the lawn. Don’t add a surfactant. Skip stressed turf and new sod until it has rooted.
Good to know: No rain for 24 hours. Wait 3–6 months to seed, depending on the rate used (chart on the label).
Ferti-lome
Weed Free Zone
Lawns. Fast-acting broadleaf weed killer that also works in cooler weather.
Active ingredient: 2,4-D, mecoprop, dicamba, carfentrazone
We match it to: dandelion, henbit, common chickweed, ground ivy (creeping Charlie), white clover, broadleaf plantain, buckhorn plantain, black medic, speedwell, wild garlic and onion, and 11 more
When: Spring or fall while weeds are young and growing. Skip it above 90°F or on a drought-stressed lawn.
How: Spray to wet the leaves, not a fine mist. Spot spray or broadcast; up to 2 broadcasts a year, 30 days apart.
Good to know: No rain or watering for 4 hours. Don’t mow 1–2 days before or after. Reseed after 2 weeks. People and pets off until dry.
Ferti-lome
Weed-Out Lawn Weed Killer
Lawns. The classic three-way broadleaf weed killer.
Active ingredient: 2,4-D, mecoprop, dicamba
We match it to: dandelion, henbit, common chickweed, ground ivy (creeping Charlie), white clover, prostrate knotweed, broadleaf plantain, field bindweed, buckhorn plantain, purslane, and 21 more
When: Growing season, on young weeds; works faster above 70°F. Skip it if temperatures will drop below 45°F within 3 days.
How: Water the lawn 2–3 days before and mow 1–2 days before. Spray evenly; up to 2 times a year, 30 days apart.
Good to know: No watering for 24 hours; no mowing for 48 hours. Wait 3 weeks to seed. New lawns: once the grass is 2 in. tall. Off until dry.
Hi-Yield
2,4-D Selective Weed Killer
Lawns. Basic broadleaf weed killer.
Active ingredient: 2,4-D
We match it to: dandelion, henbit, common chickweed, broadleaf plantain, purslane, wild garlic and onion, common ragweed, horseweed, musk thistle, poison hemlock, and 8 more
When: Warm weather while weeds are young and growing; skip it above 90°F or in wind over 15 mph.
How: Spot spray: 5⅓ fl oz per gallon of mix; wet the weeds. Up to 2 broadcasts a year. Clover in the lawn will be hurt.
Good to know: People and pets off until dry. Seed in fall after a spring spray (spring after fall). Keep drift off gardens and ornamentals.
Hi-Yield
Triclopyr Ester + Hi-Yield Spreader Sticker
Cool-season lawns only (tall fescue, bluegrass, ryegrass); not zoysia or Bermuda. For tough lawn weeds: wild violet, ground ivy, oxalis, clover. Our counter mix: 2 Tbsp of Triclopyr Ester with 2 tsp of Hi-Yield Spreader Sticker per gallon of water. Check it against both current labels before you spray.
Active ingredient: triclopyr ester
We match it to: ground ivy (creeping Charlie), white clover, buckhorn plantain, oxalis (yellow woodsorrel), black medic, canada thistle, wild violet, lambsquarters, sericea lespedeza, bull thistle
When: Early spring through fall while weeds are actively growing; not on lawns stressed by heat or drought.
How: Our counter mix (above), as a spot spray. Repeat broadcast sprays at least 4 weeks apart.
Good to know: No watering for 24 hours. Wait 3 weeks to reseed; new grass needs 2–3 mowings first. Heat can make it drift as vapor onto tomatoes and grapes.
Weed preventers (pre-emergents)
Ferti-lome
Crabgrass Preventer Plus Lawn Food with Dimension
Lawns. Spring preventer, applied by about April 1 (redbuds in bloom).
Active ingredient: dithiopyr
We match it to: large crabgrass, prostrate spurge, goosegrass, oxalis (yellow woodsorrel), foxtail, barnyardgrass, sandbur
When: Spring, before crabgrass sprouts (it also stops seedlings up to 4 weeks old), or late August to November for fall weeds.
How: Spreader, half in each direction, a few days after mowing. Water in with about ½ in. within 30 days.
Good to know: Don’t seed for 10 weeks after a spring feeding (12 weeks after fall). People and pets off until the dust settles.
Hi-Yield
Turf & Ornamental Weed & Grass Stopper
Lawns and landscape beds. Preventer for crabgrass and other annual weeds.
Active ingredient: dithiopyr
We match it to: large crabgrass, prostrate knotweed, prostrate spurge, goosegrass, annual bluegrass, foxtail, barnyardgrass, sandbur, shepherd’s purse, carpetweed
When: Spring, before crabgrass sprouts, or late August to November for fall weeds. Doesn’t kill weeds already up.
How: Spreader, half in each direction. Water in with about ½ in.; it isn’t active until watered.
Good to know: Wait 10 weeks to seed after spring use (12 after fall). New lawns: after 2 mowings. Off until the dust settles.
Ferti-lome
Winterizer & Weed Preventer II with Dimension
Lawns. Fall feeding plus a preventer for winter weeds. Not where you plan to seed this fall.
Active ingredient: dithiopyr
We match it to: henbit, common chickweed, prostrate knotweed, annual bluegrass, speedwell, hairy bittercress, shepherd’s purse
When: Fall, before winter weeds such as henbit and chickweed sprout; it doesn’t kill weeds already up.
How: Spreader over the lawn; rain or watering activates it.
Good to know: Like other dithiopyr preventers it also stops grass seed: check the bag for how long to wait before seeding.
Ferti-lome
Broadleaf Weed Control with Gallery
Lawns and flower beds. Preventer: stops broadleaf weed seeds from sprouting; does not kill existing weeds.
Active ingredient: isoxaben
We match it to: prostrate spurge, oxalis (yellow woodsorrel), purslane, hairy bittercress, carpetweed
When: Before weeds sprout: late summer to early fall, or early spring. It does not kill weeds already up.
How: Spreader, half in each direction. Water in with about ½ in. as soon as you can.
Good to know: Overseed no sooner than 60 days after. New seedlings: wait until they are well rooted. Not near bedding plants or hydrangeas.
Hi-Yield
Herbicide Granules Weed & Grass Preventer
Vegetable and flower gardens. Preventer for seedlings; check the label for each crop.
Active ingredient: trifluralin
We match it to: lambsquarters, pigweed, ivyleaf morningglory
When: Before weeds sprout; established shrubs and trees any time. It prevents weeds, it doesn’t kill them: weed first.
How: Around established plants: sprinkle 1 oz per 10 sq ft. Before planting listed vegetables: mix 1–3 in. into the soil.
Good to know: Not for lawns or flower seed. People and pets off until it’s mixed into the soil.
Ike’s
Sandbur & Crabgrass Preventer
Lawns, cool-season and warm-season. A liquid preventer: spray in spring before sandbur and crabgrass sprout; the label allows a repeat 5–8 weeks later. Wait at least 3 months after the last spray before seeding.
Active ingredient: pendimethalin
We match it to: sandbur
When: Spring before weeds sprout; late summer or early fall for chickweed and henbit. A repeat 5–8 weeks later extends control.
How: Spray over the lawn, then water in with about ½ in. within 30 days.
Good to know: Wait at least 3 months to seed. New lawns: after 4 mowings. People off until dry.
Beds, brush and spot sprays
Hi-Yield
Super Concentrate Killzall
Kills any plant it touches. Spot-treat, cut stumps, patios and bed prep; never on a lawn you want to keep.
Active ingredient: glyphosate
We match it to: bermudagrass, nimblewill, garlic mustard, poison ivy, amur honeysuckle, lambsquarters, pigweed, pokeweed, johnsongrass, sericea lespedeza, and 20 more
When: Weeds actively growing, before seed heads form; warm, sunny days above 60°F, no wind.
How: Mix 3 Tbsp per gallon (5 Tbsp for tough weeds); coarse spot spray. Kills any plant it touches, lawn grass included.
Good to know: Rainfast in 2 hours. Don’t mow or dig for 7 days. Plant flowers after 1 day; seed or sod after 7; vegetables 3–30 days (label list).
Ferti-lome
Over-the-Top II Grass Killer
Flower beds and shrub beds. Kills grasses without harming most flowers and shrubs (check the label list).
Active ingredient: sethoxydim
We match it to: bermudagrass
When: Grassy weeds up to about 1 ft tall and actively growing; don’t mow them first. Grass yellows and dies in 1–3 weeks.
How: 1 oz plus 1 oz oil concentrate per gallon; spray just to wet. Safe over many flowers, shrubs and listed vegetables.
Good to know: No rain for 1 hour. Vegetable harvest waits on the label (e.g. 20 days tomatoes, 14 days squash). It does not kill nutsedge or broadleaf weeds.
BioAdvanced
Brush Killer Plus
Poison ivy, brush and woody vines. Spot use, not a lawn spray.
Active ingredient: triclopyr
We match it to: oxalis (yellow woodsorrel), canada thistle, poison ivy, wild violet, sericea lespedeza, multiflora rose, japanese honeysuckle, wild blackberry and dewberry
When: When brush and weeds are fully leafed out and growing. Yellowing shows in 1–6 weeks.
How: Spray until wet but not dripping; shield nearby plants with cardboard. Vines on wanted plants: cut and spray the stump.
Good to know: Rainproof in 4 hours. People and pets off until dry. Not for lawns or food plants.
Ferti-lome
Brush Killer Stump Killer
Brush, woody vines and fresh-cut stumps. Spot use, not a lawn spray.
Active ingredient: triclopyr
We match it to: garlic mustard, poison ivy, pokeweed, sericea lespedeza, poison hemlock, callery pear, tree of heaven, multiflora rose, japanese honeysuckle, teasel, and 2 more
When: When brush and weeds are fully leafed out and growing. Wilting shows in 1–6 weeks.
How: Spray leaves until wet, coarse spray, calm air. Stumps and cut vines: brush it on the fresh cut, undiluted.
Good to know: Rain within 24 hours can weaken it. People and pets off until dry. Not on or near food crops; keep off lawns and wanted plants.
Ferti-lome Green
Grass & Weed Killer
Beds, walks and patios. A contact spray that burns down young weeds fast; it kills any green plant it touches, lawn grass included, and works best on small annual weeds.
Active ingredient: soap of fatty acids (organic)
We match it to: young annual weeds in beds and walks
When: Any time of year on dry, warm days, best on weeds under 5 in. Works within hours.
How: Spray to soak the weeds; don’t dilute. Kills any green plant it hits, lawn grass too. Repeat every 2–3 weeks on regrowth.
Good to know: Rain within 3 hours may mean a second spray. Replant or seed after 5 days.
Always read and follow the product label. The label is the law and overrides anything on this page, including site, rate, timing and waiting periods. Not sure what you’re dealing with? Bring us a photo or a sample, or call the Garden Center at (816) 444-3403. Our free My Garden app also has a Kansas City guide to weeds, pests and plant diseases with these same product notes.