Annual Flower

When to Plant Marigolds in Florida

The ultimate companion plant. Marigolds repel pests, attract pollinators, and add cheerful color all season long.

The Short Answer

Marigolds grow well in Florida during the cooler months but can struggle in the peak of summer humidity. They're valuable companion plants in Florida vegetable gardens where pest pressure is intense.

Florida Frost Dates

Your planting dates depend on which part of Florida you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
North Florida 8a, 8b, 9a Feb 15 - Mar 10 Nov 15 - Dec 10
Central Florida 9a, 9b, 10a Jan 15 - Feb 10 Dec 10 - Jan 5
South Florida 10a, 10b, 11a Rare Rare

Marigolds Planting Schedule for Florida

North Florida (Zones 8a, 8b, 9a)

Average last frost: Feb 15 - Mar 10 · Average first frost: Nov 15 - Dec 10

Start Seeds Indoors
6 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Central Florida (Zones 9a, 9b, 10a)

Average last frost: Jan 15 - Feb 10 · Average first frost: Dec 10 - Jan 5

Start Seeds Indoors
6 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

South Florida (Zones 10a, 10b, 11a)

Average last frost: Rare · Average first frost: Rare

Start Seeds Indoors
6 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Growing Marigolds in Florida

State-Specific Growing Tips

Plant from October through April for best results. Summer marigolds struggle with Florida's humidity and heat. French marigolds suppress root-knot nematodes — particularly valuable in Florida's sandy, nematode-prone soils.

Recommended Varieties for Florida

French marigolds for pest control (essential in Florida's nematode-heavy soils). Signet for edible flowers. Choose heat-tolerant varieties.

Common Challenges in Florida

Root rot and fungal diseases during humid summer. Caterpillar damage. Best grown during the cooler months.

Growing Tips

French marigolds are best for pest control in vegetable gardens. Deadhead spent flowers to keep them blooming until frost.

Companion Planting

Plant marigolds alongside these companions for better growth:

Tomatoes Peppers Squash Beans

The Bottom Line

Marigolds can be grown successfully in Florida with proper attention to regional frost dates and local growing conditions. Timing varies across the state — North Florida gardeners work with a last frost around Feb 15 - Mar 10, while South Florida sees frost end around Rare. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Marigolds Growing Guide National planting guide with all states Florida Planting Calendar All plants for Florida Marigolds in Alabama Alabama planting dates Marigolds in Alaska Alaska planting dates Marigolds in Arizona Arizona planting dates Marigolds in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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