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When to Plant Komatsuna in Terrell County, TX

Terrell County, Texas Zone 8b May

This month in Terrell County, Texas

Here's what deserves your attention in Terrell County, Texas this month. Everything below is tailored to Zone 8b and timed around your local frost dates.

Avg. last frost March 2
Avg. first frost November 27
Soil temp (4") 60°F
Watering Critical
Pest pressure Moderate
Daylight 13.5 hrs
  1. It's harvest week for komatsuna

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

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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.

Terrell County, Texas is in USDA Zone 8b. The average last spring frost is March 2 and the first fall frost is November 27, giving you a growing season of approximately 270 days.

At an elevation of 3,434 feet, Terrell County receives approximately 45.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Komatsuna may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Komatsuna will need more frequent watering and organic matter to retain nutrients.

Terrell County, TX (Zone 8b) Year-round
270 days
Last Spring Frost March 2
270 growing days
First Fall Frost November 27
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Terrell County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Start indoors: Jan 15 Transplant: Feb 19 🍅 Harvest: Mar 26 – Apr 30
Recommended (50%) ✓ Fits season (200 days to spare)
Start indoors: Jan 26 Transplant: Mar 2 🍅 Harvest: Apr 6 – May 11
Safe Start (90%) ✓ Fits season (193 days to spare)
Start indoors: Feb 15 Transplant: Mar 22 🍅 Harvest: Apr 26 – May 31

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.

Soil Compatibility in Terrell County

How your county's soil matches Komatsuna's growing requirements.

Soil pH

Your soil pH (7.3–8.4) is more alkaline than Komatsuna prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Terrell County warms quickly in spring but drains fast. Komatsuna will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.0%). Add 2-3 inches of compost before planting Komatsuna.

How to Plant Komatsuna

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Komatsuna

9
successive plantings in your 270-day season

Sow every 4 weeks. Last sowing by Oct 08 to harvest before frost.

For a dedicated fall crop, sow by Sep 18.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 829 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Komatsuna

Komatsuna needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Komatsuna Needs Rainfall You Supplement Action
Jan 3" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 4.3" 2.8" 1.5" 💧 Light watering
Apr 4.3" 1.7" 2.6" 🚿 Regular watering
May 4.3" 1.1" 3.2" 🚿 Regular watering
Jun 4.3" 1.7" 2.6" 🚿 Regular watering
Jul 4.3" 7.7" 0" ✅ Rainfall sufficient
Aug 4.3" 9" 0" ✅ Rainfall sufficient
Sep 4.3" 5.6" 0" ✅ Rainfall sufficient
Oct 4.3" 4.9" 0" ✅ Rainfall sufficient
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 3.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Terrell County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Komatsuna Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Komatsuna needs ~935 GDD — county provides 5,940 GDD Excellent fit

Komatsuna Planting Timeline — Terrell County, TX

Komatsuna Planting Calendar

Activity When Date Range
Start Indoors January 26 Jan 26 – Feb 9
Transplant Outdoors March 2 Mar 2 – Mar 16
Direct Sow February 16 Feb 16 – Mar 9
Harvest April 6 Apr 6 – May 11
Fall Sowing September 18 Sep 18 – Oct 2

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

270 days in Terrell County

Growing Tips for Komatsuna in Terrell County

Direct sow Komatsuna outdoors after March 02 in Terrell County when soil has warmed and frost danger has passed.

Sandy soil in Terrell County dries quickly — mulch Komatsuna with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Terrell County, provide afternoon shade for Komatsuna and water deeply in the morning.

Your generous 270.0-day season in Terrell County allows multiple plantings of Komatsuna. Sow every 17.0 days for continuous harvest.

Common pests for Komatsuna in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Terrell County, TX?

Terrell County is in Zone 8b with an average last frost of March 2. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.

What planting zone is Terrell County, TX?

Terrell County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 2 and first fall frost is November 27.

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Your Terrell County Garden Planner — Free

A 24-page printable planner built for Terrell County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Terrell County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

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