When to Plant Catnip in Coryell County, TX
This month in Coryell County, Texas
A quick July briefing for Coryell County, Texas gardeners — what's urgent, what's next, and what can wait.
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It's harvest week for catnip
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
Catnip is a hardy perennial herb in the mint family known for its effect on cats. It also makes a calming tea and is a useful companion plant that repels some pests.
Coryell County, Texas is in USDA Zone 8b. The average last spring frost is March 16 and the first fall frost is November 15, giving you a growing season of approximately 244 days.
At an elevation of 3,488 feet, Coryell County receives approximately 65 inches of rainfall annually with predominantly clay soil. Summer highs average 91°F, providing good warmth for Catnip during the growing season. Clay soil retains moisture well for Catnip, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Catnip root diseases.
Coryell County Soil Profile
Soil Type
Clay
Soil pH
7-8.3
Drainage
Well Drained
Catnip 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 Coryell County
How your county's soil matches Catnip's growing requirements.
Soil pH
Your soil pH (7.0–8.3) is more alkaline than Catnip prefers (6.0–7.5). Add sulfur or peat moss to lower pH.
Soil Texture
Heavy clay soil (41% clay) in Coryell County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.
Organic Matter
Organic matter is moderate (3.3%). Annual compost additions will help Catnip.
How to Plant Catnip
Succession Planting Catnip
Sow every 6.9 weeks. Last sowing by Aug 27 to harvest before frost.
Catnip Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Catnip
Catnip needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Catnip Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 2.3" | 0" | ❄️ Dormant |
| Mar | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 6.9" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 9.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 9.5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 7.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 7.1" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 2" | 0.2" | 💧 Light watering |
| Dec | — | 1.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Coryell County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Catnip 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.
Catnip Planting Timeline — Coryell County, TX
Catnip Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 23 | Mar 23 – Apr 6 |
| Harvest | May 25 | May 25 – Jul 27 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | Transplant Outdoors |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–80 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_alkaline
🗺️ USDA Zone
Zone 8b
📆 Growing Season
244 days in Coryell County
Growing Tips for Catnip in Coryell County
Direct sow Catnip outdoors after March 16 in Coryell County when soil has warmed and frost danger has passed.
With Coryell County's clay soil (41% clay), work in 3-4 inches of compost before planting Catnip. Avoid tilling when soil is wet to prevent compaction.
General growing tips
Direct sow or start indoors. Catnip is very easy to grow and can become invasive. Harvest leaves before flowering for tea. Protect young plants from cats.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Catnip in Other Locations
Frequently Asked Questions
When should I plant Catnip in Coryell County, TX?
Coryell County is in Zone 8b with an average last frost of March 16. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.
What planting zone is Coryell County, TX?
Coryell County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 16 and first fall frost is November 15.
Your Coryell County Garden Planner — Free
A 22-page printable planner built for Coryell 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.