Weed Control in Ohio and Florida

Post-emergent weed killers typically show visible results — wilting, yellowing, or dying weeds — within 7 to 14 days of application, though tougher perennials like thistle or sedge may take a full treatment cycle to fully eradicate. Speed depends on weather, weed species, and whether a systemic product is working through the plant root system. Pre-emergent products don't visibly kill weeds because they're stopping seeds from germinating in the first place — their results show up as a clean, weed-free lawn over time. Land Art's complimentary service calls mean you can reach out if weeds aren't responding the way you expect.

Pre-emergent weed control targets seeds before they germinate, creating a barrier in the soil that stops crabgrass, foxtail, and other annual weeds from sprouting. Post-emergent products work on weeds that are already growing — either killing on contact or moving through the plant systemically to destroy the root system. Land Art uses both in a coordinated program: pre-emergents go down in early spring before soil temperatures climb, and post-emergents address any breakthrough weeds during the season. Timing is critical — applying a pre-emergent too late means the seeds have already germinated and it won't do anything.

Land Art uses grass-friendly formulas specifically designed to target weeds while leaving your turf unharmed — the products are selective, meaning they're engineered to affect broadleaf weeds and grassy invaders without disrupting the root system or color of your lawn. Blanket herbicides that kill everything are not part of the program. That said, over-application or off-label use of any herbicide can cause stress to turf, which is one reason professional application and calibrated equipment matter. Land Art's technicians are licensed and continuously trained so every application stays within the parameters that protect your grass.

Pre-emergent weed control works best when applied before weed seeds begin to germinate — in Ohio, that's typically early spring when soil temperatures approach 50–55°F, usually late March to early April. In Florida, warm-season weeds can germinate nearly year-round, so pre-emergent applications are often timed multiple times throughout the year. Applying too late means weeds have already sprouted and post-emergent products are needed to handle them. Land Art times all applications based on local conditions to make sure you're getting prevention, not just cleanup.

Land Art uses only grass-friendly, EPA-registered formulas, and treated lawns are generally safe for pets and children once the product has dried — typically within 1 to 2 hours of application. Your technician will let you know the specific wait time based on the products used that day. Keeping pets off treated turf until it's fully dry is a simple precaution, especially for dogs that chew on grass. The same guidance applies for kids playing barefoot right after a visit — a short wait removes any concern.