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When to Plant Microgreens in Tyler 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.

Tyler County, Texas is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 19, giving you a growing season of approximately 258 days.

At an elevation of 378 feet, Tyler County receives approximately 75.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95ยฐF, so Microgreens may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Microgreens will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Microgreens root diseases.

Tyler County, TX (Zone 8b) Long season
258 days
Last Spring Frost March 6
258 growing days
First Fall Frost November 19

Tyler County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (227 days to spare)
Start indoors: Jan 20 Transplant: Feb 24 🍅 Harvest: Mar 3 – Mar 31
Recommended (50%) ✓ Fits season (223 days to spare)
Start indoors: Jan 30 Transplant: Mar 6 🍅 Harvest: Mar 13 – Apr 10
Safe Start (90%) ✓ Fits season (214 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🍅 Harvest: Apr 6 – May 4

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
1.2″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 170 gal / 100 sq ft
Microgreens needs ~298 GDD — county provides 5,482 GDD Excellent fit

Microgreens Planting Timeline โ€” Tyler County, TX

Microgreens Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 โ€“ Feb 13
Transplant Outdoors March 6 Mar 6 โ€“ Mar 20
Direct Sow February 20 Feb 20 โ€“ Mar 13
Fall Sowing September 10 Sep 10 โ€“ Sep 24
Harvest March 13 Mar 13 โ€“ Apr 10

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

7โ€“21 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

258 days

Growing Tips for Tyler 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 Tyler County, TX?

Tyler County is in Zone 8b with an average last frost of March 6. Plan your Microgreens planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Tyler County, TX?

Tyler County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 19.

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Plan Your Garden with Confidence

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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 Tyler County, TX. Local conditions may vary. Last updated: April 2026.