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When to Plant Catnip in Geneva 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.

Geneva County, Alabama is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 13, giving you a growing season of approximately 243 days.

At an elevation of 224 feet, Geneva County receives approximately 52.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97ยฐF, so Catnip may need afternoon shade and extra watering during peak heat. 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.

Geneva County, AL (Zone 8a) Long season
243 days
Last Spring Frost March 15
243 growing days
First Fall Frost November 13

Geneva County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (111 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jul 17
Recommended (50%) ✓ Fits season (110 days to spare)
Transplant: Mar 22 🍅 Harvest: May 24 – Jul 26
Safe Start (90%) ✓ Fits season (101 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 20 – Aug 22

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 Geneva County

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

Soil pH

Your soil pH (5.7โ€“6.7) overlaps with Catnip's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). 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 243-day season

Sow every 6.9 weeks. Last sowing by Aug 25 to harvest before frost.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/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€” 4.5" 0" โ„๏ธ Dormant
Feb โ€” 4" 0" โ„๏ธ Dormant
Mar 2.2" 5.3" 0" โœ… Rainfall sufficient
Apr 2.2" 4" 0" โœ… Rainfall sufficient
May 2.2" 4.2" 0" โœ… Rainfall sufficient
Jun 2.2" 4.1" 0" โœ… Rainfall sufficient
Jul 2.2" 5.7" 0" โœ… Rainfall sufficient
Aug 2.2" 5.3" 0" โœ… Rainfall sufficient
Sep 2.2" 3.8" 0" โœ… Rainfall sufficient
Oct 2.2" 3.6" 0" โœ… Rainfall sufficient
Nov 2.2" 4" 0" โœ… Rainfall sufficient
Dec โ€” 4.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Geneva 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 ~1,592 GDD — county provides 5,528 GDD Excellent fit

Catnip Planting Timeline โ€” Geneva County, AL

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 โ€“ Apr 5
Harvest May 24 May 24 โ€“ Jul 26

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

243 days in Geneva County

Growing Tips for Catnip in Geneva County

Direct sow Catnip outdoors after March 15 in Geneva County when soil has warmed and frost danger has passed.

With Geneva County's clay soil (30% clay), work in 3-4 inches of compost before planting Catnip. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97ยฐF in Geneva County, provide afternoon shade for Catnip and water deeply in the morning.

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 Geneva County, AL?

Geneva County is in Zone 8a with an average last frost of March 15. Plan your Catnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Geneva County, AL?

Geneva County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Geneva 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 Geneva County, AL. Local conditions may vary. Last updated: April 2026.