🍠 Can I Plant Radish in Durham, NC?

2026 planting guide for Zone 7b · Last frost ~March 22 · Growing season ~238 days

✅ YES — Good temps, but watch for heat — highs near 100°F

Temperature conditions are suitable for Radish. Highs near 100°F are on the warm side — make sure plants have plenty of water.

Planting window: May 4 – May 18
Good to go — plant now while conditions are right.
Live result based on current forecast for Durham, NC · Updates every 6 hours
USDA Zone
7b
Last Spring Frost
~March 22
First Fall Frost
November 15
Growing Season
~238 days
Ideal Temp for Radish
40–65°F
Frost Risk
✅ Tolerant

Growing Radish in Durham

Durham's Zone 7b location in the Research Triangle provides about 237 frost-free days. Similar to Raleigh just 20 miles away, Durham enjoys warm, humid summers and a generous fall window. Tomatoes, peppers, cucumbers, and sweet potatoes all perform well. The fall garden starting in late August is particularly rewarding — broccoli, kale, and collard greens often produce into December in Durham's mild climate.

In Durham (last frost around March 22), radish can go out around February — approximately 6 weeks before the last expected frost, making it an early-season opportunity.

Radish thrives between 40°F and 65°F. It tolerates temperatures as low as 32°F, making it a candidate for early spring planting before the last frost date. Expect 22–30 days from transplant to first harvest. One of the fastest vegetables. Spring or fall.

Frequently Asked Questions

When can I plant radish in Durham, NC?

In Durham (last frost around March 22), radish can go out around February — approximately 6 weeks before the last expected frost, making it an early-season opportunity.

What is the USDA hardiness zone for Durham?

Durham, NC is in USDA Plant Hardiness Zone 7b. The last expected spring frost is around March 22, and the first fall frost arrives around November 15. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant radish outside in Durham right now?

That depends on the current weather forecast. Radish needs temperatures above 32°F (ideally 40–65°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 radish in Durham 2026?

Yes — Radish grows well in Durham, NC. With a Zone 7b climate and a growing season of ~238 days, Durham is well-suited for cool-season crops like radish. As a frost-tolerant crop, radish can even go out a few weeks before the last frost date.

Grow Radish in Other Cities

New York, NYLos Angeles, CAChicago, ILHouston, TXPhoenix, AZPhiladelphia, PASan Antonio, TXSan Diego, CA

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 radish right now.

Check My ZIP Code →