When to Plant Collard Greens in Limestone County, TX
May to-do list for Limestone County, Texas
Your garden in Limestone County, Texas is working on a schedule, even when you're not. Here's where you should be this May.
-
Collect collard greens at their peak
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Coming up in June — start thinking about
- First harvests: collard greens
Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.
Limestone County, Texas is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 14, giving you a growing season of approximately 247 days.
At an elevation of 214 feet, Limestone County receives approximately 69.7 inches of rainfall annually with predominantly clay soil. Summer highs average 93°F, providing good warmth for Collard Greens during the growing season. Clay soil retains moisture well for Collard Greens, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Collard Greens root diseases.
Limestone County Soil Profile
Soil Type
Clay
Soil pH
7.1-7.7
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 Limestone County
How your county's soil matches Collard Greens's growing requirements.
Soil pH
Your soil pH (7.1–7.7) is more alkaline than Collard Greens prefers (6.0–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Heavy clay soil (45% clay) in Limestone County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Collard Greens.
How to Plant Collard Greens
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Collard Greens
Sow every 6.3 weeks. Last sowing by Aug 31 to harvest before frost.
For a dedicated fall crop, sow by Sep 05.
Plant Water Budget
Monthly Watering Guide for Collard Greens
Collard Greens needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Collard Greens Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 2.5" | 0" | ❄️ Dormant |
| Mar | 3.5" | 4.9" | 0" | ✅ Rainfall sufficient |
| Apr | 3.5" | 6.9" | 0" | ✅ Rainfall sufficient |
| May | 3.5" | 10.6" | 0" | ✅ Rainfall sufficient |
| Jun | 3.5" | 12.1" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 8.9" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 8.2" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 6.2" | 0" | ✅ Rainfall sufficient |
| Oct | 3.5" | 3.8" | 0" | ✅ Rainfall sufficient |
| Nov | 3.5" | 2" | 1.5" | 💧 Light watering |
| Dec | — | 1.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Limestone County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Collard Greens 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.
Collard Greens Planting Timeline — Limestone County, TX
Collard Greens Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 5 | Feb 5 – Feb 19 |
| Transplant Outdoors | March 12 | Mar 12 – Mar 26 |
| Direct Sow | February 26 | Feb 26 – Mar 19 |
| Harvest | May 7 | May 7 – Jul 9 |
| Fall Sowing | September 5 | Sep 5 – Sep 19 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · Natural rainfall sufficient
📅 Days to Maturity
55–75 days
🧪 Soil pH
Needs 6–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 8b
📆 Growing Season
247 days in Limestone County
Growing Tips for Collard Greens in Limestone County
Direct sow Collard Greens outdoors after March 12 in Limestone County when soil has warmed and frost danger has passed.
With Limestone County's clay soil (45% clay), work in 3-4 inches of compost before planting Collard Greens. Avoid tilling when soil is wet to prevent compaction.
Common pests for Collard Greens in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Collard Greens in Other Locations
Frequently Asked Questions
When should I plant Collard Greens in Limestone County, TX?
Limestone County is in Zone 8b with an average last frost of March 12. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.
What planting zone is Limestone County, TX?
Limestone County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 14.
Your Limestone County Garden Planner — Free
A 24-page printable planner built for Limestone 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.