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When to Plant Catnip in Autauga County, AL

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.

Autauga County, Alabama is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 14, giving you a growing season of approximately 245 days.

At an elevation of 80 feet, Autauga County receives approximately 58.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91ยฐF, 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.

Autauga County, AL (Zone 8a) Long season
245 days
Last Spring Frost March 14
245 growing days
First Fall Frost November 14

Autauga County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Transplant: Mar 14 🍅 Harvest: May 16 – Jul 18
Recommended (50%) ✓ Fits season (112 days to spare)
Transplant: Mar 21 🍅 Harvest: May 23 – Jul 25
Safe Start (90%) ✓ Fits season (108 days to spare)
Transplant: Apr 10 🍅 Harvest: Jun 12 – Aug 14

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 Autauga County

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

Soil pH

Your soil pH (5.7โ€“6.5) overlaps with Catnip's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The clay loam soil in Autauga County is excellent for Catnip โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Catnip.

How to Plant Catnip

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

Succession Planting Catnip

4
successive plantings in your 245-day season

Sow every 6.9 weeks. Last sowing by Aug 26 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/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 โ€” 5.3" 0" โ„๏ธ Dormant
Feb โ€” 4.3" 0" โ„๏ธ Dormant
Mar 2.2" 6" 0" โœ… Rainfall sufficient
Apr 2.2" 4.1" 0" โœ… Rainfall sufficient
May 2.2" 4.9" 0" โœ… Rainfall sufficient
Jun 2.2" 4.5" 0" โœ… Rainfall sufficient
Jul 2.2" 6.4" 0" โœ… Rainfall sufficient
Aug 2.2" 5.5" 0" โœ… Rainfall sufficient
Sep 2.2" 4.5" 0" โœ… Rainfall sufficient
Oct 2.2" 3.5" 0" โœ… Rainfall sufficient
Nov 2.2" 4.9" 0" โœ… Rainfall sufficient
Dec โ€” 4.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Autauga County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 4,471 GDD Excellent fit

Catnip Planting Timeline โ€” Autauga County, AL

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 โ€“ Apr 4
Harvest May 23 May 23 โ€“ Jul 25

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“80 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

245 days in Autauga County

Growing Tips for Catnip in Autauga County

Direct sow Catnip outdoors after March 14 in Autauga County when soil has warmed and frost danger has passed.

With Autauga County's clay soil (28% 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 →

Frequently Asked Questions

When should I plant Catnip in Autauga County, AL?

Autauga County is in Zone 8a with an average last frost of March 14. Plan your Catnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Autauga County, AL?

Autauga County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 14.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Autauga County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Autauga County, AL. Local conditions may vary. Last updated: April 2026.