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When to Plant Komatsuna in Clay County, TX

Komatsuna (Japanese mustard spinach) is a versatile Asian green with glossy, dark leaves and a mild, sweet flavor. It is extremely cold-hardy and heat-tolerant.

Clay County, Texas is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 11, giving you a growing season of approximately 235 days.

At an elevation of 3,266 feet, Clay County receives approximately 64.3 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Komatsuna during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Komatsuna root diseases.

Clay County, TX (Zone 8a) Long season
235 days
Last Spring Frost March 21
235 growing days
First Fall Frost November 11

Clay County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Komatsuna Planting Timeline — Clay County, TX

Komatsuna Planting Calendar

Activity When Date Range
Start Indoors February 14 Feb 14 – Feb 28
Transplant Outdoors March 21 Mar 21 – Apr 4
Direct Sow March 7 Mar 7 – Mar 28
Harvest April 25 Apr 25 – May 30
Fall Sowing September 2 Sep 2 – Sep 16

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 8a

📆 Growing Season

235 days in Clay County

Growing Tips for Clay County

Direct sow in spring or fall. One of the most forgiving Asian greens for all seasons. Harvest outer leaves or cut whole plants. Excellent for stir-fries, soups, or salads.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Komatsuna in Clay County, TX?

Clay County is in Zone 8a with an average last frost of March 21. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clay County, TX?

Clay County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 11.

🌱

Your Clay County Garden Planner — Free

A 22-page printable planner built for Clay County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.