When to Plant Corn in Florida: Regional Dates and Tips

Planting Guide · March 2026 · 6 min read

Florida's corn planting calendar looks nothing like the Midwest. With three distinct climate regions spanning USDA Zones 8a through 10b, the planting window varies by hundreds of miles and several weeks. Whether you are growing sweet corn for market or field corn for silage, timing it to avoid summer heat stress is the single biggest factor in your success.

Planting Dates by Florida Region

Region	USDA Zone	Optimal Window	Latest Date
North Florida (Panhandle, Jacksonville)	8a – 8b	March 1 – March 25	April 10
Central Florida (Orlando, Tampa, Ocala)	9a – 9b	February 15 – March 15	March 31
South Florida (Palm Beach, Miami-Dade, Homestead)	10a – 10b	January 15 – February 28	March 15

South Florida growers can also plant a fall crop in September for harvest before Christmas, taking advantage of cooling temperatures and lower pest pressure late in the season.

Why Early Planting Matters in Florida

Florida's summer heat is the enemy of corn pollination. When daytime temperatures exceed 95°F, pollen viability drops sharply and silk desiccation prevents fertilization. The result is ears with missing kernels and reduced yield. By planting early, you push tasseling and silking into May or early June before the worst heat arrives.

University of Florida (UF/IFAS) research consistently shows that corn planted in the optimal window yields 15 to 30 percent more than corn planted just three to four weeks later.

Sweet Corn vs. Field Corn

Florida is one of the nation's top sweet corn producers, with most commercial acreage in the Everglades Agricultural Area (Palm Beach County). Sweet corn varieties mature in 70 to 85 days, allowing tight planting windows and even successive plantings every two to three weeks from January through March for a staggered harvest.

Field corn for grain or silage uses 95- to 115-day hybrids. It is mostly grown in north and central Florida where the slightly cooler climate gives the crop more time to fill grain.

Tips for Planting Corn in Florida

Sandy soils dominate. Florida's deep sands drain fast and hold few nutrients. Irrigate frequently and split nitrogen into three or more applications to prevent leaching.
Nematodes are everywhere. Root-knot and sting nematodes damage corn roots throughout the state. Use nematicide seed treatments and rotate with nematode-suppressive cover crops like sunn hemp.
Fall armyworm year-round. Florida's mild winters mean fall armyworm does not die off. Scout from day one and plant Bt hybrids for built-in protection.
Southern rust moves fast. Warm, humid conditions in Florida make southern rust a major threat. Choose hybrids with rust tolerance and have a fungicide plan ready for VT stage.
Hurricane exposure. Corn still standing in September or October is vulnerable to tropical storms. Stick to the early planting window to harvest before hurricane season peaks.

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After Planting: What to Watch

Florida's frequent afternoon thunderstorms can crust sandy soils and waterlog low spots. Check stands 7 to 10 days after planting. Monitor for early-season weed pressure — tropical weeds like Texas panicum and crabgrass emerge fast in warm, moist conditions. Use our Field Notes Journal to track your planting dates, emergence counts, and pest observations across seasons.