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When to Plant Catnip in Rutherford County, TN

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.

Rutherford County, Tennessee is in USDA Zone 7a. The average last spring frost is April 12 and the first fall frost is October 24, giving you a growing season of approximately 195 days.

At an elevation of 3,872 feet, Rutherford County receives approximately 44.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Catnip during the growing season.

Rutherford County, TN (Zone 7a) Moderate season
195 days
Last Spring Frost April 12
195 growing days
First Fall Frost October 24

Rutherford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (62 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 16 – Aug 18
Recommended (50%) ✓ Fits season (62 days to spare)
Transplant: Apr 19 🍅 Harvest: Jun 21 – Aug 23
Safe Start (90%) ✓ Fits season (63 days to spare)
Transplant: May 6 🍅 Harvest: Jul 8 – Sep 9

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.

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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Catnip needs ~1,120 GDD — county provides 3,120 GDD Excellent fit

Catnip Planting Timeline โ€” Rutherford County, TN

Catnip Planting Calendar

Activity When Date Range
Transplant Outdoors April 19 Apr 19 โ€“ May 3
Harvest June 21 Jun 21 โ€“ Aug 23

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

60โ€“80 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

195 days

Growing Tips for Rutherford County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Catnip in Rutherford County, TN?

Rutherford County is in Zone 7a with an average last frost of April 12. Plan your Catnip planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Rutherford County, TN?

Rutherford County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 12 and first fall frost is October 24.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Rutherford County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

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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 Rutherford County, TN. Local conditions may vary. Last updated: April 2026.