🍠 Can I Plant Radish in Memphis, TN?

2026 planting guide for Zone 7b · Last frost ~March 20 · Growing season ~232 days

✅ YES — Good temps, but watch for heat — highs near 91°F

Temperature conditions are suitable for Radish. Highs near 91°F are on the warm side — make sure plants have plenty of water. The season is running warmer than normal, which has opened this window earlier than usual.

Planting window: Apr 29 – May 13
Good to go — plant now while conditions are right.
Live result based on current forecast for Memphis, TN · Updates every 6 hours
USDA Zone
7b
Last Spring Frost
~March 20
First Fall Frost
November 7
Growing Season
~232 days
Ideal Temp for Radish
40–65°F
Frost Risk
✅ Tolerant

Growing Radish in Memphis

Memphis sits in Zone 7b along the Mississippi River, with about 230 frost-free days. The humid subtropical climate means hot, muggy summers that favor heat-tolerant crops like okra, sweet potatoes, and Southern peas. Spring arrives early enough for a productive warm-season garden, and fall is excellent for cool-season greens started in September.

In Memphis (last frost around March 20), 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 Memphis, TN?

In Memphis (last frost around March 20), 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 Memphis?

Memphis, TN is in USDA Plant Hardiness Zone 7b. The last expected spring frost is around March 20, and the first fall frost arrives around November 7. 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 Memphis 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 Memphis 2026?

Yes — Radish grows well in Memphis, TN. With a Zone 7b climate and a growing season of ~232 days, Memphis 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

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