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When to Plant Kohlrabi in Schleicher County, TX

Schleicher County, Texas Zone 8a May

Your May game plan for Schleicher County, Texas

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

Avg. last frost April 1
Avg. first frost November 8
Soil temp (4") 58°F
Watering Critical
Pest pressure Moderate
Daylight 13.6 hrs
  1. Start kohlrabi indoors

    These need a head start before your last frost (April 1). Sow into cells now so you're ready to transplant in a few weeks.

  2. Harvest kohlrabi as they ripen

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Before June arrives, get these ready
  • First harvests: kohlrabi

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Kohlrabi is an unusual brassica that forms a swollen stem above ground with a mild, sweet turnip-like flavor. Both the bulb and tender leaves are edible.

Schleicher County, Texas is in USDA Zone 8a. The average last spring frost is April 1 and the first fall frost is November 8, giving you a growing season of approximately 221 days.

At an elevation of 3,657 feet, Schleicher County receives approximately 49.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Kohlrabi during the growing season. Sandy soil warms quickly in spring — great for early planting — but Kohlrabi will need more frequent watering and organic matter to retain nutrients.

Schleicher County, TX (Zone 8a) Long season
221 days
Last Spring Frost April 1
221 growing days
First Fall Frost November 8

Schleicher County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (137 days to spare)
Start indoors: Feb 14 Transplant: Mar 21 🍅 Harvest: May 9 – Jun 13
Recommended (50%) ✓ Fits season (137 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🍅 Harvest: May 20 – Jun 24
Safe Start (90%) ✓ Fits season (139 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 3 – Jul 8

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 Schleicher County

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

Soil pH

Your soil pH (7.5–8.7) is more alkaline than Kohlrabi prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Schleicher County warms quickly in spring but drains fast. Kohlrabi 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 Kohlrabi.

How to Plant Kohlrabi

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

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

Succession Planting Kohlrabi

5
successive plantings in your 221-day season

Sow every 5.1 weeks. Last sowing by Sep 04 to harvest before frost.

For a dedicated fall crop, sow by Aug 30.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Kohlrabi

Kohlrabi needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Kohlrabi Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.1" 0" ❄️ Dormant
Mar 2.8" 0" ❄️ Dormant
Apr 3" 1.8" 1.2" 💧 Light watering
May 3" 1" 2" 🚿 Regular watering
Jun 3" 1.7" 1.3" 💧 Light watering
Jul 3" 9.5" 0" ✅ Rainfall sufficient
Aug 3" 9.1" 0" ✅ Rainfall sufficient
Sep 3" 5.8" 0" ✅ Rainfall sufficient
Oct 3" 5" 0" ✅ Rainfall sufficient
Nov 3" 3.2" 0" ✅ Rainfall sufficient
Dec 3.5" 0" ❄️ Dormant

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

Kohlrabi 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.

Kohlrabi needs ~1,128 GDD — county provides 4,530 GDD Excellent fit

Kohlrabi Planting Timeline — Schleicher County, TX

Kohlrabi Planting Calendar

Activity When Date Range
Start Indoors February 25 Feb 25 – Mar 11
Transplant Outdoors April 1 Apr 1 – Apr 15
Direct Sow March 18 Mar 18 – Apr 8
Harvest May 20 May 20 – Jun 24
Fall Sowing August 30 Aug 30 – Sep 13

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Natural rainfall sufficient

📅 Days to Maturity

45–65 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

221 days in Schleicher County

Growing Tips for Kohlrabi in Schleicher County

Direct sow Kohlrabi outdoors after April 01 in Schleicher County when soil has warmed and frost danger has passed.

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

Your generous 221.0-day season in Schleicher County allows multiple plantings of Kohlrabi. Sow every 22.0 days for continuous harvest.

Common pests for Kohlrabi 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. Harvest when bulbs are 2-3 inches in diameter for best texture and flavor. Larger bulbs may become woody and fibrous.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kohlrabi in Schleicher County, TX?

Schleicher County is in Zone 8a with an average last frost of April 1. Plan your Kohlrabi planting based on this frost date — see the calendar above for exact timing.

What planting zone is Schleicher County, TX?

Schleicher County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is April 1 and first fall frost is November 8.

🌱

Your Schleicher County Garden Planner — Free

A 24-page printable planner built for Schleicher 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.

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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 Schleicher 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.