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When to Plant Microgreens in Zavala County, TX

Microgreens are young seedlings of vegetables and herbs harvested at the cotyledon or first true leaf stage. They pack concentrated flavors and nutrients in a tiny package.

Zavala County, Texas is in USDA Zone 8b. The average last spring frost is February 26 and the first fall frost is November 29, giving you a growing season of approximately 276 days.

At an elevation of 4,905 feet, Zavala County receives approximately 59.7 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Microgreens during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Microgreens root diseases.

Zavala County, TX (Zone 8b) Year-round
276 days
Last Spring Frost February 26
276 growing days
First Fall Frost November 29

Zavala County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (247 days to spare)
Start indoors: Jan 8 Transplant: Feb 12 🍅 Harvest: Feb 19 – Mar 19
Recommended (50%) ✓ Fits season (241 days to spare)
Start indoors: Jan 22 Transplant: Feb 26 🍅 Harvest: Mar 5 – Apr 2
Safe Start (90%) ✓ Fits season (233 days to spare)
Start indoors: Feb 16 Transplant: Mar 23 🍅 Harvest: Mar 30 – Apr 27

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 234 gal / 100 sq ft
Microgreens needs ~276 GDD — county provides 5,470 GDD Excellent fit

Microgreens Planting Timeline โ€” Zavala County, TX

Microgreens Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 โ€“ Feb 5
Transplant Outdoors February 26 Feb 26 โ€“ Mar 12
Direct Sow February 12 Feb 12 โ€“ Mar 5
Fall Sowing September 20 Sep 20 โ€“ Oct 4
Harvest March 5 Mar 5 โ€“ Apr 2

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

7โ€“21 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

276 days

Growing Tips for Zavala County

Sow seeds densely on shallow trays of moist growing medium. Cover until germination, then provide light. Harvest with scissors when 1-3 inches tall. Grow year-round indoors.

Frequently Asked Questions

When should I plant Microgreens in Zavala County, TX?

Zavala County is in Zone 8b with an average last frost of February 26. Plan your Microgreens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Zavala County, TX?

Zavala County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 26 and first fall frost is November 29.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Zavala 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 Zavala County, TX. Local conditions may vary. Last updated: April 2026.