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When to Plant Catnip in Atascosa County, TX

Atascosa County, Texas Zone 9a May

May in Atascosa County, Texas — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Atascosa County, Texas.

Avg. last frost February 26
Avg. first frost November 29
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. It's harvest week for catnip

    If you can't use it all right away, check the food-preservation section of your planner.

June prep starts now
  • First harvests: catnip

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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.

Atascosa County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 29, giving you a growing season of approximately 276 days.

At an elevation of 1,942 feet, Atascosa County receives approximately 51.7 inches of rainfall annually with predominantly loam soil. Summer highs average 91°F, providing good warmth for Catnip during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Catnip root diseases.

Atascosa County, TX (Zone 9a) Year-round
276 days
Last Spring Frost February 26
276 growing days
First Fall Frost November 29
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Atascosa County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (151 days to spare)
Transplant: Feb 20 🍅 Harvest: Apr 24 – Jun 26
Recommended (50%) ✓ Fits season (143 days to spare)
Transplant: Mar 5 🍅 Harvest: May 7 – Jul 9
Safe Start (90%) ✓ Fits season (136 days to spare)
Transplant: Mar 29 🍅 Harvest: May 31 – Aug 2

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 Atascosa County

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

Soil pH

Your soil pH (6.8–7.7) overlaps with Catnip's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Atascosa County is excellent for Catnip — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Catnip.

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Catnip.

How to Plant Catnip

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Catnip

5
successive plantings in your 276-day season

Sow every 6.9 weeks. Last sowing by Sep 10 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 1.5" 0" ❄️ Dormant
Feb 2.2" 1.6" 0.6" 💧 Light watering
Mar 2.2" 3.5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.8" 0" ✅ Rainfall sufficient
May 2.2" 7.6" 0" ✅ Rainfall sufficient
Jun 2.2" 7.4" 0" ✅ Rainfall sufficient
Jul 2.2" 7.4" 0" ✅ Rainfall sufficient
Aug 2.2" 6.6" 0" ✅ Rainfall sufficient
Sep 2.2" 4.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.1" 0" ✅ Rainfall sufficient
Nov 2.2" 2" 0.2" 💧 Light watering
Dec 1.4" 0" ❄️ Dormant

Water needs are for active growing months only (Feb–Nov in Atascosa 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 needs ~1,278 GDD — county provides 5,055 GDD Excellent fit

Catnip Planting Timeline — Atascosa County, TX

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors March 5 Mar 5 – Mar 19
Harvest May 7 May 7 – Jul 9

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May Harvest
June Harvest
July Harvest
August
September
October
November
December
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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: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

276 days in Atascosa County

Growing Tips for Catnip in Atascosa County

Direct sow Catnip outdoors after February 26 in Atascosa County when soil has warmed and frost danger has passed.

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 →

Frequently Asked Questions

When should I plant Catnip in Atascosa County, TX?

Atascosa County is in Zone 9a with an average last frost of February 26. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.

What planting zone is Atascosa County, TX?

Atascosa County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 29.

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Your Atascosa County Garden Planner — Free

A 24-page printable planner built for Atascosa 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.

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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 Atascosa 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.