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When to Plant Komatsuna in Midland County, TX

Midland County, Texas Zone 8b May

May in the garden — Midland County, Texas

Your Midland County, Texas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 20
Avg. first frost November 14
Soil temp (4") 67°F
Watering High
Pest pressure Moderate
Daylight 13.6 hrs
  1. Collect komatsuna at their peak

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

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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.

Midland County, Texas is in USDA Zone 8b. The average last spring frost is March 20 and the first fall frost is November 14, giving you a growing season of approximately 239 days.

At an elevation of 1,546 feet, Midland County receives approximately 52.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Komatsuna root diseases.

Midland County, TX (Zone 8b) Long season
239 days
Last Spring Frost March 20
239 growing days
First Fall Frost November 14

Midland County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (173 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: Apr 9 – May 14
Recommended (50%) ✓ Fits season (169 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: Apr 24 – May 29
Safe Start (90%) ✓ Fits season (159 days to spare)
Start indoors: Mar 9 Transplant: Apr 13 🍅 Harvest: May 18 – Jun 22

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 Midland County

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

Soil pH

Your soil pH (7.4–8.6) is more alkaline than Komatsuna prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Midland 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

8
successive plantings in your 239-day season

Sow every 4 weeks. Last sowing by Sep 25 to harvest before frost.

For a dedicated fall crop, sow by Sep 05.

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 184 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 3.5" 0" ❄️ Dormant
Feb 3.3" 0" ❄️ Dormant
Mar 4.3" 2.8" 1.5" 💧 Light watering
Apr 4.3" 1.7" 2.6" 🚿 Regular watering
May 4.3" 1.3" 3" 🚿 Regular watering
Jun 4.3" 2" 2.3" 🚿 Regular watering
Jul 4.3" 8.8" 0" ✅ Rainfall sufficient
Aug 4.3" 10.8" 0" ✅ Rainfall sufficient
Sep 4.3" 7.8" 0" ✅ Rainfall sufficient
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 2.8" 1.5" 💧 Light watering
Dec 3.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Midland 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 ~999 GDD — county provides 5,616 GDD Excellent fit

Komatsuna Planting Timeline — Midland County, TX

Komatsuna Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest April 24 Apr 24 – May 29
Fall Sowing September 5 Sep 5 – Sep 19

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

1"/week · Only during dry spells

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8b

📆 Growing Season

239 days in Midland County

Growing Tips for Komatsuna in Midland County

Direct sow Komatsuna outdoors after March 20 in Midland County when soil has warmed and frost danger has passed.

Sandy soil in Midland 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 98°F in Midland County, provide afternoon shade for Komatsuna and water deeply in the morning.

Your generous 239.0-day season in Midland 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 Midland County, TX?

Midland County is in Zone 8b with an average last frost of March 20. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.

What planting zone is Midland County, TX?

Midland County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 20 and first fall frost is November 14.

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Your Midland County Garden Planner — Free

A 24-page printable planner built for Midland 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 Midland 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.