When to plant Cosmos in Daviess County, KY
Spring Cosmos in Daviess County goes in April 6–April 27, once nighttime temps stop dipping near freezing.
When to Plant Cosmos in Daviess County, KY
Cosmos (Cosmos bipinnatus) is an airy, feathery-foliaged cottage garden annual from Mexico that thrives on neglect. It produces delicate daisy-like blooms in shades of pink, white, and magenta from midsummer until frost. Cosmos is a prolific self-sower — once established in a garden it often returns year after year without replanting. Excellent habitat plant for beneficial insects.
Daviess County, Kentucky is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 31, giving you a growing season of approximately 208 days.
At an elevation of 1,390 feet, Daviess County receives approximately 40.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Cosmos during the growing season.
Daviess County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Cosmos Planting Timeline — Daviess County, KY
Cosmos Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 9 | Mar 9 – Mar 23 |
| Transplant Outdoors | April 6 | Apr 6 – Apr 20 |
| Direct Sow | April 6 | Apr 6 – Apr 27 |
| Bloom | June 15 | Jun 15 – Oct 5 |
Plant 0.3" deep · 12" apart · Rows 18" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Low — drought tolerant
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–8 · Your soil: N/A
🗺️ USDA Zone
Zone 7a
📆 Growing Season
208 days in Daviess County
Growing Tips for Daviess County
Direct-sow after last frost; cosmos germinates readily at 65-80°F in 7-10 days. Avoid rich soil — excess fertility produces lush foliage at the expense of blooms. Cosmos tolerates poor, dry soil exceptionally well. Pinch seedlings at 8 inches to encourage branching. Self-sows freely; allow some seed heads to mature and drop for a no-fuss perennial effect in warm climates.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Cosmos in Other Locations
Frequently Asked Questions
When should I plant Cosmos in Daviess County, KY?
Daviess County is in Zone 7a with an average last frost of April 6. Plan your Cosmos planting based on this frost date — see the calendar above for exact timing.
What planting zone is Daviess County, KY?
Daviess County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is October 31.
When should I plant Cosmos in Daviess County, KY?
In Daviess County, KY, plant Cosmos after the last frost (around April 6) and before the first frost (around October 31). Best results when soil holds above 50°F.
What growing zone is Daviess County, KY for Cosmos?
Daviess County sits in USDA Zone 7a. Cosmos grows reliably in zones 2a through 11b, so it's a good fit here.
Can Cosmos grow in Daviess County's climate?
Yes — Cosmos grows well in Daviess County's temperate climate. Daviess County averages a 208-day frost-free season, with last frost around April 6 and first frost around October 31.
Your Daviess County Garden Planner — Free
A 22-page printable planner built for Daviess County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.