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When to Plant Komatsuna in Lynn County, TX

Lynn County, Texas Zone 8a May

What to do in May

May is a pivotal month for Lynn County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 31
Avg. first frost November 9
Soil temp (4") 63°F
Watering Critical
Pest pressure Moderate
Daylight 13.7 hrs
  1. Start komatsuna indoors

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Bring in the komatsuna

    If you can't use it all right away, check the food-preservation section of your planner.

To set up a strong June, finish these tasks
  • First harvests: komatsuna

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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.

Lynn County, Texas is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 9, giving you a growing season of approximately 223 days.

At an elevation of 2,252 feet, Lynn County receives approximately 47.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Komatsuna during the growing season. Sandy soil warms quickly in spring — great for early planting — but Komatsuna will need more frequent watering and organic matter to retain nutrients.

Lynn County, TX (Zone 8a) Long season
223 days
Last Spring Frost March 31
223 growing days
First Fall Frost November 9

Lynn County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (151 days to spare)
Start indoors: Feb 18 Transplant: Mar 25 🍅 Harvest: Apr 29 – Jun 3
Recommended (50%) ✓ Fits season (153 days to spare)
Start indoors: Feb 24 Transplant: Mar 31 🍅 Harvest: May 5 – Jun 9
Safe Start (90%) ✓ Fits season (152 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: May 20 – Jun 24

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 Lynn County

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

Soil pH

Your soil pH (7.5–8.5) is more alkaline than Komatsuna prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Lynn 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 (1.1%). 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

7
successive plantings in your 223-day season

Sow every 4 weeks. Last sowing by Sep 20 to harvest before frost.

For a dedicated fall crop, sow by Aug 31.

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 246 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 3.4" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 4.3" 2.8" 1.5" 💧 Light watering
Apr 4.3" 1.8" 2.5" 🚿 Regular watering
May 4.3" 1" 3.3" 🚿 Regular watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 7.4" 0" ✅ Rainfall sufficient
Aug 4.3" 9.4" 0" ✅ Rainfall sufficient
Sep 4.3" 6.5" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 3.2" 1.1" 💧 Light watering
Dec 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lynn 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 ~871 GDD — county provides 4,571 GDD Excellent fit

Komatsuna Planting Timeline — Lynn County, TX

Komatsuna Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 – Mar 10
Transplant Outdoors March 31 Mar 31 – Apr 14
Direct Sow March 17 Mar 17 – Apr 7
Harvest May 5 May 5 – Jun 9
Fall Sowing August 31 Aug 31 – Sep 14

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July
August Fall Sowing
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 8a

📆 Growing Season

223 days in Lynn County

Growing Tips for Komatsuna in Lynn County

Direct sow Komatsuna outdoors after March 31 in Lynn County when soil has warmed and frost danger has passed.

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

Your generous 223.0-day season in Lynn 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 Lynn County, TX?

Lynn County is in Zone 8a with an average last frost of March 31. Plan your Komatsuna planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lynn County, TX?

Lynn County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 9.

🌱

Your Lynn County Garden Planner — Free

A 24-page printable planner built for Lynn 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 Lynn 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.