When to Plant Kohlrabi in Hardeman County, TX
May to-do list for Hardeman County, Texas
May is a pivotal month for Hardeman County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Indoor seed-starting week for kohlrabi
Label every cell. You will absolutely forget which is which otherwise.
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Collect kohlrabi at their peak
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
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.
Hardeman County, Texas is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 7, giving you a growing season of approximately 222 days.
At an elevation of 2,010 feet, Hardeman County receives approximately 47.8 inches of rainfall annually with predominantly loam soil. Summer highs average 89°F, providing good warmth for Kohlrabi during the growing season.
Hardeman County Soil Profile
Soil Type
Loam
Soil pH
6.7-7.3
Drainage
Well Drained
Plant Planting Risk Windows
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 Hardeman County
How your county's soil matches Kohlrabi's growing requirements.
Soil pH
Your soil pH (6.7–7.3) is within Kohlrabi's preferred range (6.0–7.5).
Soil Texture
The loam soil in Hardeman County is excellent for Kohlrabi — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Kohlrabi.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Kohlrabi.
How to Plant Kohlrabi
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Kohlrabi
Sow every 5.1 weeks. Last sowing by Sep 03 to harvest before frost.
For a dedicated fall crop, sow by Aug 29.
Plant Water Budget
Water stress score is 6/10 — 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 | — | 1.4" | 0" | ❄️ Dormant |
| Feb | — | 1.4" | 0" | ❄️ Dormant |
| Mar | 3" | 3" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 4.7" | 0" | ✅ Rainfall sufficient |
| May | 3" | 7.5" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 7.1" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 6.7" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 3" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 1.5" | 1.5" | 🚿 Regular watering |
| Dec | — | 1.1" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Hardeman 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 Planting Timeline — Hardeman County, TX
Kohlrabi Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 23 | Feb 23 – Mar 9 |
| Transplant Outdoors | March 30 | Mar 30 – Apr 13 |
| Direct Sow | March 16 | Mar 16 – Apr 6 |
| Harvest | May 18 | May 18 – Jun 22 |
| Fall Sowing | August 29 | Aug 29 – Sep 12 |
Plant 0.5" deep · 4" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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
Full Sun (6-8+ hours)
💧 Water
0.7"/week · Only during dry spells
📅 Days to Maturity
45–65 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 7b
📆 Growing Season
222 days in Hardeman County
Growing Tips for Kohlrabi in Hardeman County
Direct sow Kohlrabi outdoors after March 30 in Hardeman County when soil has warmed and frost danger has passed.
Your generous 222.0-day season in Hardeman 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
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Check more plant combinations with our Companion Planting Checker →
Kohlrabi in Other Locations
Frequently Asked Questions
When should I plant Kohlrabi in Hardeman County, TX?
Hardeman County is in Zone 7b with an average last frost of March 30. Plan your Kohlrabi planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hardeman County, TX?
Hardeman County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 7.
Your Hardeman County Garden Planner — Free
A 24-page printable planner built for Hardeman County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.