🧅 Can I Plant Green Onion in Tampa, FL?
Temperature conditions are suitable for Green Onion. Highs near 92°F are on the warm side — make sure plants have plenty of water.
Growing Green Onion in Tampa
Tampa's Zone 9b subtropical climate makes it one of the best year-round gardening cities in the country. Frost is rare and brief. Two distinct growing seasons dominate: the warm/dry spring (March–May) and the fall (October–December) after summer's intense heat and rain subside. Summers are hot and stormy — tropical crops like sweet potatoes and okra thrive, but many gardeners rest cool-season beds until September.
In Tampa (last frost around January 28), green onion can go out around December — approximately 4 weeks before the last expected frost, making it an early-season opportunity. Starting seeds indoors 8 weeks before the last frost date gives you a significant head start.
Green Onion thrives between 50°F and 80°F. It tolerates temperatures as low as 35°F, making it a candidate for early spring planting before the last frost date. Expect 60–80 days from transplant to first harvest. Easy and fast. Direct sow in early spring or fall. Harvest young.
Frequently Asked Questions
When can I plant green onion in Tampa, FL?
In Tampa (last frost around January 28), green onion can go out around December — approximately 4 weeks before the last expected frost, making it an early-season opportunity. For best results, start seeds indoors 8 weeks before that — giving you strong transplants ready to go out at the right time.
What is the USDA hardiness zone for Tampa?
Tampa, FL is in USDA Plant Hardiness Zone 9b. The last expected spring frost is around January 28, and the first fall frost arrives around December 28. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.
Is it safe to plant green onion outside in Tampa right now?
That depends on the current weather forecast. Green Onion needs temperatures above 35°F (ideally 50–80°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 green onion in Tampa 2026?
Yes — Green Onion grows well in Tampa, FL. With a Zone 9b climate and a growing season of ~335 days, Tampa is well-suited for warm-season crops like green onion. As a frost-tolerant crop, green onion can even go out a few weeks before the last frost date.
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