Union Springs 9 S, AL Frost Dates & Growing Season

The two dates every Union Springs 9 S garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Mar 25
~50% chance of frost after
First fall frost
Nov 6
~50% chance of frost before
Growing season
226 days
frost-free stretch
USDA zone
≈ 8a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Feb 28 Mar 25 Apr 13
First fall frost Nov 25 Nov 6 Oct 24
Hard freeze (28°F), median last Mar 9 · first Nov 17

Computed from NOAA 1991–2020 climate normals at the UNION SPRINGS 9 S 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 Union Springs 9 S

Computed from Union Springs 9 S's own frost dates. Click any crop for the full zone-8 growing guide — varieties, spacing, fall plantings, and more.

CropStart seeds indoorsTransplantDirect sow
🍅 Tomatoes Jan 28 – Feb 11 Apr 1 – Apr 8
🫑 Peppers Jan 14 – Jan 28 Apr 8 – Apr 15
🥬 Lettuce Feb 11 – Feb 25 Feb 25 – Mar 11 Feb 25 – Mar 25
🫛 Peas Feb 11 – Feb 25
🥕 Carrots Mar 4 – Mar 25
🥦 Broccoli Feb 4 – Feb 18 Mar 4 – Mar 18
🥬 Kale Feb 11 – Feb 25 Feb 25 – Mar 11 Feb 25 – Mar 11
🥒 Cucumbers Feb 25 – Mar 4 Apr 1 – Apr 8 Apr 1 – Apr 8
🥒 Zucchini Feb 25 – Mar 4 Apr 1 – Apr 8 Apr 1 – Apr 8
🫘 Green Beans (Bush) Apr 1 – Apr 8
🌽 Sweet Corn Apr 1 – Apr 8
🌿 Basil Feb 11 – Feb 25 Apr 1 – Apr 8 Apr 8 – Apr 15
🧄 Garlic Fall: Sep 25 – Oct 23

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 Union Springs 9 S's dates automatically after a lookup.

Reading the season in Union Springs 9 S

With roughly 226 frost-free days, Union Springs 9 S 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 6 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Union Springs 9 S, AL?

The average last spring frost in Union Springs 9 S is around Mar 25, 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 Union Springs 9 S, AL?

The average first fall frost in Union Springs 9 S arrives around Nov 6. 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 Union Springs 9 S?

About 226 frost-free days on average, from Mar 25 to Nov 6. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Union Springs 9 S in?

USDA zone 8a 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.