When to Plant Endive in Colorado County, TX
What to do in May
Welcome to May in Zone 9a. These are the moves that will have the biggest impact on your growing season.
-
Basket week: endive
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
Endive is a leafy green with a slightly bitter flavor, available in curly (frisee) and broad-leaved (escarole) types. It adds texture and complexity to salads.
Colorado County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is December 4, giving you a growing season of approximately 281 days.
At an elevation of 87 feet, Colorado County receives approximately 70.5 inches of rainfall annually with predominantly clay soil. Summer highs average 90°F, providing good warmth for Endive during the growing season. Clay soil retains moisture well for Endive, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Endive root diseases.
Colorado County Soil Profile
Soil Type
Clay
Soil pH
7.3-7.8
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 Colorado County
How your county's soil matches Endive's growing requirements.
Soil pH
Your soil pH (7.3–7.8) is more alkaline than Endive prefers (5.5–7.0). Add sulfur or peat moss to lower pH.
Soil Texture
Heavy clay soil (42% clay) in Colorado County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.
Drainage
Drainage is adequate for Endive.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Endive.
How to Plant Endive
Fall planting: Sow 8 weeks before your first frost date for a fall harvest.
Succession Planting Endive
Sow every 5.1 weeks. Last sowing by Sep 30 to harvest before frost.
For a dedicated fall crop, sow by Oct 09.
Plant Water Budget
Monthly Watering Guide for Endive
Endive needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.
| Month | Endive Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.9" | 0" | ❄️ Dormant |
| Feb | 3" | 2.3" | 0.7" | 💧 Light watering |
| Mar | 3" | 4.5" | 0" | ✅ Rainfall sufficient |
| Apr | 3" | 8" | 0" | ✅ Rainfall sufficient |
| May | 3" | 10.9" | 0" | ✅ Rainfall sufficient |
| Jun | 3" | 10.3" | 0" | ✅ Rainfall sufficient |
| Jul | 3" | 9.3" | 0" | ✅ Rainfall sufficient |
| Aug | 3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Sep | 3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Oct | 3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Nov | 3" | 2.3" | 0.7" | 💧 Light watering |
| Dec | 3" | 1.9" | 1.1" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Colorado County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Endive 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.
Endive Planting Timeline — Colorado County, TX
Endive Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 29 | Jan 29 – Feb 12 |
| Transplant Outdoors | February 26 | Feb 26 – Mar 12 |
| Direct Sow | February 5 | Feb 5 – Feb 26 |
| Harvest | April 16 | Apr 16 – May 21 |
| Fall Sowing | October 9 | Oct 9 – Oct 23 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Transplant Outdoors |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
0.7"/week · Natural rainfall sufficient
📅 Days to Maturity
45–65 days
🧪 Soil pH
Needs 5.5–7 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 9a
📆 Growing Season
281 days in Colorado County
Growing Tips for Endive in Colorado County
Direct sow Endive outdoors after February 26 in Colorado County when soil has warmed and frost danger has passed.
With Colorado County's clay soil (42% clay), work in 3-4 inches of compost before planting Endive. Avoid tilling when soil is wet to prevent compaction.
Your generous 282.0-day season in Colorado County allows multiple plantings of Endive. Sow every 22.0 days for continuous harvest.
Common pests for Endive in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Sow seeds directly in spring or fall. Blanch heads by tying outer leaves together 2-3 weeks before harvest to reduce bitterness. Keep soil evenly moist.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Endive in Other Locations
Frequently Asked Questions
When should I plant Endive in Colorado County, TX?
Colorado County is in Zone 9a with an average last frost of February 26. Plan your Endive planting based on this frost date — see the calendar above for exact timing.
What planting zone is Colorado County, TX?
Colorado County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is December 4.
Your Colorado County Garden Planner — Free
A 24-page printable planner built for Colorado County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.