Santa Cruz, CA Frost Dates & Growing Season

The two dates every Santa Cruz garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Jan 29
~50% chance of frost after
First fall frost
Dec 13
~50% chance of frost before
Growing season
318 days
frost-free stretch
USDA zone
≈ 10b
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Dec 25 Jan 29 Feb 28
First fall frost Jan 22 Dec 13 Nov 23
Hard freeze (28°F), median last Jan 3 · first Dec 27

Computed from NOAA 1991–2020 climate normals at the SANTA CRUZ station. "Safe" means frost past that date happens only about one year in ten. Your exact garden can still run days either way with elevation and terrain — check your own ZIP with the frost date lookup.

Planting windows for Santa Cruz

Computed from Santa Cruz's own frost dates. Click any crop for the full zone-10 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Dec 4 – Dec 18 Feb 5 – Feb 12
🫑 Peppers Nov 20 – Dec 4 Feb 12 – Feb 19
🥬 Lettuce Dec 18 – Jan 1 Jan 1 – Jan 15 Jan 1 – Jan 29
🫛 Peas Dec 18 – Jan 1
🥕 Carrots Jan 8 – Jan 29
🥦 Broccoli Dec 11 – Dec 25 Jan 8 – Jan 22
🥬 Kale Dec 18 – Jan 1 Jan 1 – Jan 15 Jan 1 – Jan 15
🥒 Cucumbers Jan 1 – Jan 8 Feb 5 – Feb 12 Feb 5 – Feb 12
🥒 Zucchini Jan 1 – Jan 8 Feb 5 – Feb 12 Feb 5 – Feb 12
🫘 Green Beans (Bush) Feb 5 – Feb 12
🌽 Sweet Corn Feb 5 – Feb 12
🌿 Basil Dec 18 – Jan 1 Feb 5 – Feb 12 Feb 12 – Feb 19
🧄 Garlic Fall: Nov 1 – Nov 29

Want this for all 50 crops, or as a printable seed-shelf schedule? Use the planting calendar and the seed starting scheduler — both can use Santa Cruz's dates automatically after a lookup.

Reading the season in Santa Cruz

With roughly 318 frost-free days, Santa Cruz gardens fit long-season crops — melons, winter squash, sweet potatoes — with room left for spring and fall rounds of greens and roots. The first frost around Dec 13 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Santa Cruz, CA?

The average last spring frost in Santa Cruz is around Jan 29, based on 1991–2020 climate normals. That's a median — about half of years see a later frost, so tender crops are safest going out a week or two after this date.

When is the first frost in Santa Cruz, CA?

The average first fall frost in Santa Cruz arrives around Dec 13. Crops still in the garden need to mature before then, and frost-tender plants need harvesting or protection as the date approaches.

How long is the growing season in Santa Cruz?

About 318 frost-free days on average, from Jan 29 to Dec 13. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Santa Cruz in?

USDA zone 10b on the 2023 Plant Hardiness Zone Map. Note that zones describe winter cold, not frost timing — these frost dates are the numbers to plan plantings around.