Washington Sp, TX Frost Dates & Growing Season

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

Last spring frost
Mar 7
~50% chance of frost after
First fall frost
Nov 19
~50% chance of frost before
Growing season
257 days
frost-free stretch
USDA zone
≈ 9a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Feb 10 Mar 7 Mar 31
First fall frost Dec 11 Nov 19 Nov 1
Hard freeze (28°F), median last Feb 19 · first Dec 3

Computed from NOAA 1991–2020 climate normals at the WASHINGTON SP 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 Washington Sp

Computed from Washington Sp's own frost dates. Click any crop for the full zone-9 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Jan 10 – Jan 24 Mar 14 – Mar 21
🫑 Peppers Dec 27 – Jan 10 Mar 21 – Mar 28
🥬 Lettuce Jan 24 – Feb 7 Feb 7 – Feb 21 Feb 7 – Mar 7
🫛 Peas Jan 24 – Feb 7
🥕 Carrots Feb 14 – Mar 7
🥦 Broccoli Jan 17 – Jan 31 Feb 14 – Feb 28
🥬 Kale Jan 24 – Feb 7 Feb 7 – Feb 21 Feb 7 – Feb 21
🥒 Cucumbers Feb 7 – Feb 14 Mar 14 – Mar 21 Mar 14 – Mar 21
🥒 Zucchini Feb 7 – Feb 14 Mar 14 – Mar 21 Mar 14 – Mar 21
🫘 Green Beans (Bush) Mar 14 – Mar 21
🌽 Sweet Corn Mar 14 – Mar 21
🌿 Basil Jan 24 – Feb 7 Mar 14 – Mar 21 Mar 21 – Mar 28
🧄 Garlic Fall: Oct 8 – Nov 5

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 Washington Sp's dates automatically after a lookup.

Reading the season in Washington Sp

With roughly 257 frost-free days, Washington Sp 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 Nov 19 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Washington Sp, TX?

The average last spring frost in Washington Sp is around Mar 7, 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 Washington Sp, TX?

The average first fall frost in Washington Sp arrives around Nov 19. 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 Washington Sp?

About 257 frost-free days on average, from Mar 7 to Nov 19. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Washington Sp in?

USDA zone 9a 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.