When to Plant Catnip in Marshall 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.
Marshall County, Tennessee is in USDA Zone 7a. The average last spring frost is April 10 and the first fall frost is October 24, giving you a growing season of approximately 197 days.
At an elevation of 3,469 feet, Marshall County receives approximately 41.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Catnip during the growing season.
Marshall County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-6.8
Drainage
Well Drained
Plant 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.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Catnip Planting Timeline — Marshall County, TN
Catnip Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 17 | Apr 17 – May 1 |
| Harvest | June 19 | Jun 19 – Aug 21 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | Transplant Outdoors |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
60–80 days
Soil pH
6 – 7.5
USDA Zone
Zone 7a
Growing Season
197 days
Growing Tips for Marshall 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
Catnip in Other Locations
Frequently Asked Questions
When should I plant Catnip in Marshall County, TN?
Marshall County is in Zone 7a with an average last frost of April 10. Plan your Catnip planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marshall County, TN?
Marshall County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 10 and first fall frost is October 24.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Marshall County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.
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