🥦 Can I Plant Cauliflower in Las Vegas, NV?

2026 planting guide for Zone 9b · Last frost ~February 15 · Growing season ~290 days

✅ YES — Good temps, but watch for heat — highs near 116°F

Temperature conditions are suitable for Cauliflower. Highs near 116°F are on the warm side — make sure plants have plenty of water.

Planting window: Jul 2 – Jul 16
Good to go — plant now while conditions are right.
Live result based on current forecast for Las Vegas, NV · Updates every 6 hours
USDA Zone
9b
Last Spring Frost
~February 15
First Fall Frost
December 1
Growing Season
~290 days
Ideal Temp for Cauliflower
45–65°F
Frost Risk
✅ Tolerant

Growing Cauliflower in Las Vegas

Las Vegas's Zone 9b Mojave Desert climate is defined by extreme summer heat — well above 110°F in July — and mild, pleasant winters. The gardening calendar runs opposite to most of the country: cool-season vegetables thrive October through March, and warm-season crops are best planted in spring (March–May) before the furnace of summer arrives. Drip irrigation and shade cloth are non-negotiable in Las Vegas gardens.

In Las Vegas (last frost around February 15), cauliflower can go out around January — approximately 6 weeks before the last expected frost, making it an early-season opportunity. Starting seeds indoors 6 weeks before the last frost date gives you a significant head start.

Cauliflower thrives between 45°F and 65°F. It tolerates temperatures as low as 28°F, making it a candidate for early spring planting before the last frost date. Expect 85–100 days from transplant to first harvest. Needs steady cool temps. Finicky.

Frequently Asked Questions

When can I plant cauliflower in Las Vegas, NV?

In Las Vegas (last frost around February 15), cauliflower can go out around January — approximately 6 weeks before the last expected frost, making it an early-season opportunity. For best results, start seeds indoors 6 weeks before that — giving you strong transplants ready to go out at the right time.

What is the USDA hardiness zone for Las Vegas?

Las Vegas, NV is in USDA Plant Hardiness Zone 9b. The last expected spring frost is around February 15, and the first fall frost arrives around December 1. This zone classification helps you understand which perennials survive winter and when annual vegetables can safely go outdoors.

Is it safe to plant cauliflower outside in Las Vegas right now?

That depends on the current weather forecast. Cauliflower needs temperatures above 28°F (ideally 45–65°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 cauliflower in Las Vegas 2026?

Yes — Cauliflower grows well in Las Vegas, NV. With a Zone 9b climate and a growing season of ~290 days, Las Vegas is well-suited for cool-season crops like cauliflower. As a frost-tolerant crop, cauliflower can even go out a few weeks before the last frost date.

Grow Cauliflower in Other Cities

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

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