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When to Plant Cress in Thomas County, GA

Garden cress is one of the fastest-growing edibles, producing peppery sprouts in as little as two weeks. It is excellent for microgreens and garnishes.

Thomas County, Georgia is in USDA Zone 8b. The average last spring frost is March 4 and the first fall frost is November 22, giving you a growing season of approximately 263 days.

At an elevation of 302 feet, Thomas County receives approximately 58.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95ยฐF, so Cress may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Cress, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cress root diseases.

Thomas County, GA (Zone 8b) Long season
263 days
Last Spring Frost March 4
263 growing days
First Fall Frost November 22

Thomas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (232 days to spare)
Start indoors: Jan 17 Transplant: Feb 21 🍅 Harvest: Mar 7 – Mar 28
Recommended (50%) ✓ Fits season (228 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: Mar 18 – Apr 8
Safe Start (90%) ✓ Fits season (231 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: Apr 8 – Apr 29

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 161 gal / 100 sq ft
Cress needs ~372 GDD — county provides 5,588 GDD Excellent fit

Cress Planting Timeline โ€” Thomas County, GA

Cress Planting Calendar

Activity When Date Range
Start Indoors January 28 Jan 28 โ€“ Feb 11
Transplant Outdoors March 4 Mar 4 โ€“ Mar 18
Direct Sow February 18 Feb 18 โ€“ Mar 11
Fall Sowing September 13 Sep 13 โ€“ Sep 27
Harvest March 18 Mar 18 โ€“ Apr 8

Plant 0.5" deep ยท 2" apart ยท Rows 6" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors Direct Sow
March Transplant Outdoors Direct Sow Harvest
April Harvest
May โ€”
June โ€”
July โ€”
August โ€”
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

14โ€“21 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

263 days

Growing Tips for Thomas County

Sow seeds thickly on moist soil or paper towels. Keep moist and harvest when 2-3 inches tall. Succession sow every few days for continuous supply. Grows well indoors year-round.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Cress in Thomas County, GA?

Thomas County is in Zone 8b with an average last frost of March 4. Plan your Cress planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Thomas County, GA?

Thomas County, Georgia is in USDA Hardiness Zone 8b. The average last spring frost is March 4 and first fall frost is November 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Thomas County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Thomas County, GA. Local conditions may vary. Last updated: April 2026.