Mt Plymouth 1SSW, FL Frost Dates & Growing Season

The two dates every Mt Plymouth 1SSW garden is planned around, plus ready-computed planting windows for the most popular crops.

Last spring frost
Feb 24
~50% chance of frost after
First fall frost
Dec 29
~50% chance of frost before
Growing season
308 days
frost-free stretch
USDA zone
≈ 10a
estimated from nearby reference
Risky (1 year in 10)MedianSafe (9 years in 10)
Last spring frost Jan 22 Feb 24 Mar 20
First fall frost Jan 27 Dec 29 Nov 29
Hard freeze (28°F), median last Feb 3 · first Jan 10

Computed from NOAA 1991–2020 climate normals at the MT PLYMOUTH 1SSW 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 Mt Plymouth 1SSW

Computed from Mt Plymouth 1SSW'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 30 – Jan 13 Mar 3 – Mar 10
🫑 Peppers Dec 16 – Dec 30 Mar 10 – Mar 17
🥬 Lettuce Jan 13 – Jan 27 Jan 27 – Feb 10 Jan 27 – Feb 24
🫛 Peas Jan 13 – Jan 27
🥕 Carrots Feb 3 – Feb 24
🥦 Broccoli Jan 6 – Jan 20 Feb 3 – Feb 17
🥬 Kale Jan 13 – Jan 27 Jan 27 – Feb 10 Jan 27 – Feb 10
🥒 Cucumbers Jan 27 – Feb 3 Mar 3 – Mar 10 Mar 3 – Mar 10
🥒 Zucchini Jan 27 – Feb 3 Mar 3 – Mar 10 Mar 3 – Mar 10
🫘 Green Beans (Bush) Mar 3 – Mar 10
🌽 Sweet Corn Mar 3 – Mar 10
🌿 Basil Jan 13 – Jan 27 Mar 3 – Mar 10 Mar 10 – Mar 17
🧄 Garlic Fall: Nov 17 – Dec 15

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 Mt Plymouth 1SSW's dates automatically after a lookup.

Reading the season in Mt Plymouth 1SSW

With roughly 308 frost-free days, Mt Plymouth 1SSW 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 29 is late enough that fall planting is a full second season, not an afterthought.

Frequently asked questions

When is the last frost in Mt Plymouth 1SSW, FL?

The average last spring frost in Mt Plymouth 1SSW is around Feb 24, 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 Mt Plymouth 1SSW, FL?

The average first fall frost in Mt Plymouth 1SSW arrives around Dec 29. 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 Mt Plymouth 1SSW?

About 308 frost-free days on average, from Feb 24 to Dec 29. That comfortably fits long-season crops like melons and winter squash, plus spring and fall plantings of cool-season vegetables.

What USDA zone is Mt Plymouth 1SSW in?

USDA zone 10a 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.