🌽 Can I Plant Corn in Jacksonville, FL?

2026 planting guide for Zone 9a · Last frost ~February 20 · Growing season ~278 days

✅ YES — Conditions look good

Temperature conditions are suitable for Corn.

Planting window: Aug 13 – Aug 27
Good to go — plant now while conditions are right.
Live result based on current forecast for Jacksonville, FL · Updates every 6 hours
USDA Zone
9a
Last Spring Frost
~February 20
First Fall Frost
November 24
Growing Season
~278 days
Ideal Temp for Corn
65–95°F
Frost Risk
⚠️ Sensitive

Growing Corn in Jacksonville

Jacksonville's Zone 9a climate means gardening is a year-round pursuit. Winters are mild enough for cool-season crops while summers support tropical vegetables. Humidity is high June through September, which requires vigilance against fungal diseases, but the extended season easily allows two or three successions of most crops.

In Jacksonville (last frost around February 20), aim to direct sow or transplant corn outside around March — approximately 2 weeks after your last expected frost.

Corn thrives between 65°F and 95°F. It is frost-sensitive, meaning a single freeze at 32°F will damage or kill it — always wait until frost danger has fully passed. Expect 60–100 days from transplant to first harvest. Needs warm soil. Plant in blocks.

Frequently Asked Questions

When can I plant corn in Jacksonville, FL?

In Jacksonville (last frost around February 20), aim to direct sow or transplant corn outside around March — approximately 2 weeks after your last expected frost.

What is the USDA hardiness zone for Jacksonville?

Jacksonville, FL is in USDA Plant Hardiness Zone 9a. The last expected spring frost is around February 20, and the first fall frost arrives around November 24. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant corn outside in Jacksonville right now?

That depends on the current weather forecast. Corn needs temperatures above 55°F (ideally 65–95°F) to thrive. CanIPlant checks your real 7-day forecast and any active frost alerts to give you a live YES, NO, or WAIT answer — just enter your ZIP code.

Can I grow corn in Jacksonville 2026?

Yes — Corn grows well in Jacksonville, FL. With a Zone 9a climate and a growing season of ~278 days, Jacksonville is well-suited for warm-season crops like corn. Just wait until after the last frost (around February 20) before moving plants outside.

Grow Corn in Other Cities

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