🥦 Can I Plant Cauliflower in Tacoma, WA?

2026 planting guide for Zone 8b · Last frost ~March 15 · Growing season ~245 days

✅ YES — Good temps, but watch for heat — highs near 82°F

Temperature conditions are suitable for Cauliflower. Highs near 82°F are on the warm side — make sure plants have plenty of water.

Planting window: May 18 – Jun 1
Good to go — plant now while conditions are right.
Live result based on current forecast for Tacoma, WA · Updates every 6 hours
USDA Zone
8b
Last Spring Frost
~March 15
First Fall Frost
November 15
Growing Season
~245 days
Ideal Temp for Cauliflower
45–65°F
Frost Risk
✅ Tolerant

Growing Cauliflower in Tacoma

Tacoma's Zone 8b maritime climate, like Seattle, features cool, cloudy summers that challenge heat-loving plants. Tomatoes and peppers need the warmest, most sun-exposed spot in the yard or benefit from a hoop house. Cool-season crops are where Tacoma gardens shine — kale, chard, lettuce, peas, and broccoli produce spectacularly in the mild, moist Pacific Northwest climate, often with year-round harvests.

In Tacoma (last frost around March 15), cauliflower can go out around February — 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 Tacoma, WA?

In Tacoma (last frost around March 15), cauliflower can go out around February — 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 Tacoma?

Tacoma, WA is in USDA Plant Hardiness Zone 8b. The last expected spring frost is around March 15, 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 cauliflower outside in Tacoma 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 Tacoma 2026?

Yes — Cauliflower grows well in Tacoma, WA. With a Zone 8b climate and a growing season of ~245 days, Tacoma 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

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