🍠 Can I Plant Radish in Mesa, AZ?

2026 planting guide for Zone 10a · Last frost ~January 28 · Growing season ~322 days

✅ YES — Good temps, but watch for heat — highs near 115°F

Temperature conditions are suitable for Radish. Highs near 115°F are on the warm side — make sure plants have plenty of water.

Planting window: Jun 18 – Jul 2
Good to go — plant now while conditions are right.
Live result based on current forecast for Mesa, AZ · Updates every 6 hours
USDA Zone
10a
Last Spring Frost
~January 28
First Fall Frost
December 15
Growing Season
~322 days
Ideal Temp for Radish
40–65°F
Frost Risk
✅ Tolerant

Growing Radish in Mesa

Mesa shares Phoenix's Zone 10a desert climate, with essentially inverted planting seasons. Cool-season vegetables from October through April deliver outstanding results in the mild desert winters. Summer heat regularly exceeds 110°F, limiting warm-season crops to heat-extreme varieties of tomatoes and peppers in spring before the peak hits. Fall planting in September transitions into winter's productive cool-season garden.

In Mesa (last frost around January 28), radish can go out around December — 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 Mesa, AZ?

In Mesa (last frost around January 28), radish can go out around December — approximately 6 weeks before the last expected frost, making it an early-season opportunity.

What is the USDA hardiness zone for Mesa?

Mesa, AZ is in USDA Plant Hardiness Zone 10a. The last expected spring frost is around January 28, and the first fall frost arrives around December 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 Mesa 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 Mesa 2026?

Yes — Radish grows well in Mesa, AZ. With a Zone 10a climate and a growing season of ~322 days, Mesa 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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