When to plant Watermelon in Hart County, KY
Watermelon planted in Hart County between April 16 and May 7 matures in 70–100 days — well before the October 28 first frost.
When to Plant Watermelon in Hart County, KY
Watermelon is a sprawling vine crop that produces sweet, juicy fruits in hot weather. Varieties range from personal-sized icebox types to 50-pound giants.
Hart County, Kentucky is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 28, giving you a growing season of approximately 202 days.
At an elevation of 3,611 feet, Hart County receives approximately 48.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Watermelon during the growing season.
Hart County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Watermelon to Grow
For a family of 4, plant approximately 4 watermelon plants in about 8 sq ft. In Hart County's 202-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Watermelon Planting Timeline — Hart County, KY
Watermelon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 12 | Mar 12 – Mar 26 |
| Transplant Outdoors | April 23 | Apr 23 – May 7 |
| Direct Sow | April 16 | Apr 16 – May 7 |
| Harvest | July 2 | Jul 2 – Aug 20 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 7a
📆 Growing Season
202 days in Hart County
Growing Tips for Hart County
Start seeds indoors 3-4 weeks early or direct sow after soil is warm. Plant on mounds with plenty of space. Check ripeness by looking for a yellow ground spot and dull thump when tapped.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Watermelon in Other Locations
Frequently Asked Questions
When should I plant Watermelon in Hart County, KY?
Hart County is in Zone 7a with an average last frost of April 9. Plan your Watermelon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hart County, KY?
Hart County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 28.
When should I plant Watermelon in Hart County, KY?
In Hart County, KY, plant Watermelon after the last frost (around April 9) and before the first frost (around October 28). Best results when soil holds above 50°F.
What growing zone is Hart County, KY for Watermelon?
Hart County sits in USDA Zone 7a. Watermelon grows reliably in zones 4a through 11b, so it's a good fit here.
Can Watermelon grow in Hart County's climate?
Yes — Watermelon grows well in Hart County's temperate climate. Hart County averages a 202-day frost-free season, with last frost around April 9 and first frost around October 28.
Your Hart County Garden Planner — Free
A 22-page printable planner built for Hart 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.