🧅 Can I Plant Leek in Jacksonville, FL?
Temperature conditions are suitable for Leek. Highs near 95°F are on the warm side — make sure plants have plenty of water.
Growing Leek 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), leek can go out around January — approximately 4 weeks before the last expected frost, making it an early-season opportunity. Starting seeds indoors 12 weeks before the last frost date gives you a significant head start.
Leek thrives between 45°F and 75°F. It tolerates temperatures as low as 28°F, making it a candidate for early spring planting before the last frost date. Expect 100–130 days from transplant to first harvest. Long-season crop. Start indoors early. Very cold hardy.
Frequently Asked Questions
When can I plant leek in Jacksonville, FL?
In Jacksonville (last frost around February 20), leek can go out around January — approximately 4 weeks before the last expected frost, making it an early-season opportunity. For best results, start seeds indoors 12 weeks before that — giving you strong transplants ready to go out at the right time.
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 leek outside in Jacksonville right now?
That depends on the current weather forecast. Leek needs temperatures above 28°F (ideally 45–75°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 leek in Jacksonville 2026?
Yes — Leek grows well in Jacksonville, FL. With a Zone 9a climate and a growing season of ~278 days, Jacksonville is well-suited for cool-season crops like leek. As a frost-tolerant crop, leek can even go out a few weeks before the last frost date.
Grow Leek in Other Cities
Get a live answer for your exact address
Enter your ZIP code — CanIPlant checks your real 7-day forecast, frost alerts, and 30-year climate data to tell you whether to plant leek right now.
Check My ZIP Code →