When to Plant Valerian in Kenton County, KY
Valerian is a tall perennial herb with fragrant white or pink flower clusters, valued for its root which is used as a natural sleep aid. It attracts pollinators and earthworms.
Kenton County, Kentucky is in USDA Zone 6a. The average last spring frost is April 18 and the first fall frost is October 23, giving you a growing season of approximately 188 days.
At an elevation of 3,323 feet, Kenton County receives approximately 44.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Valerian during the growing season.
Kenton 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
Valerian Planting Timeline — Kenton County, KY
Valerian Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 25 | Apr 25 – May 9 |
| Harvest | August 29 | Aug 29 – Nov 7 |
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 | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | Harvest |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
120–180 days
Soil pH
5.5 – 7
USDA Zone
Zone 6a
Growing Season
188 days
Growing Tips for Kenton County
Start seeds indoors and transplant after last frost. Harvest roots in fall of the second year. Deadhead flowers unless you want self-seeding. Cats are attracted to valerian root.
Companion Planting
Good Companions
Level Up Your Garden
Valerian in Other Locations
Frequently Asked Questions
When should I plant Valerian in Kenton County, KY?
Kenton County is in Zone 6a with an average last frost of April 18. Plan your Valerian planting based on this frost date — see the calendar above for exact timing.
What planting zone is Kenton County, KY?
Kenton County, Kentucky is in USDA Hardiness Zone 6a. The average last spring frost is April 18 and first fall frost is October 23.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Kenton County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.
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