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Crab Grass

STORM – The Lawn Pro's pre-emergent prevents most unwanted annual grasses from crabgrass to foxtail grass and chickweed. Crabgrass is an annual weed that reproduces by seed every year. People will often ask how to get rid of crabgrass, and the short answer is applying a pre-emergent herbicide at the right time.

crabgrass crabgrass in sidewalk crabgrass

When is the right time to apply a pre-emergent for crabgrass?

Between mid-April and mid-May is the optimal time to apply granular pre-emergent crabgrass control product mixed with a granular fertilizer. To control crabgrass it helps to know its life cycle. When spring soil temperatures (at a depth of 2″-3″) reach 55 degrees Fahrenheit, the first crabgrass seeds will germinate. This occurs in mid-May in the Fox Cities and Appleton area. From mid-summer to fall, crabgrass produces seed. The crabgrass plants (but not the seeds) die in autumn.

Pre-emergent fertilizers will control crabgrass seedlings as they germinate. Think of pre-emergent fertilization as forming an invisible shield across the soil surface that stops emerging crabgrass dead in its tracks. Keeping with this shield image, remember not to aerate your lawn or trim the edge along your sidewalks after applying pre-emergent herbicides, as doing so would only “puncture” the shield. (Another reason to aerate lawns in the fall.) You will want to wait four to six weeks before aerating or trimming after crabgrass treatment.

The first step in the Five Step Program of STORM – The Lawn Pro is an application of a granular pre-emergent crabgrass control product, mixed with a granular fertilizer that is applied between mid-April and mid-May. This will prevent unwanted annual grasses (crabgrass, foxtail grass, and chickweed) from germinating by making the weed seed itself unable to grow roots. Mixing the granular pre-emergent with fertilizer produces green healthy grass plants, but does not promote tall growth or result in more frequent mowing. Contact us online or at 920-659-6021 for a free estimate for crabgrass control in the Fox Cities and Appleton area.

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