When to plant Kai Lan in Spencer County, KY
The best window to plant Kai Lan in Spencer County, is March 25–April 15, when soil warms to 50°F. Last frost typically hits April 8; first frost October 29. A second sowing from August 20 to September 3 extends the harvest into fall.
When to Plant Kai Lan in Spencer County, KY
Kai lan (Chinese broccoli) is a brassica grown for its thick, glossy stems and small flower buds. It has a slightly bitter, broccoli-like flavor essential in Cantonese cooking.
Spencer County, Kentucky is in USDA Zone 6b. The average last spring frost is April 8 and the first fall frost is October 29, giving you a growing season of approximately 204 days.
At an elevation of 2,819 feet, Spencer County receives approximately 40.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Kai Lan during the growing season.
Spencer County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Kai Lan Planting Timeline — Spencer County, KY
Kai Lan Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 4 | Mar 4 – Mar 18 |
| Transplant Outdoors | April 8 | Apr 8 – Apr 22 |
| Direct Sow | March 25 | Mar 25 – Apr 15 |
| Harvest | May 27 | May 27 – Jun 24 |
| Fall Sowing | August 20 | Aug 20 – Sep 3 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | Harvest |
| June | Harvest |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
45–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
204 days in Spencer County
Growing Tips for Spencer County
Direct sow in spring or fall. Harvest when flower buds first appear but before they open. Cut stems at the base to encourage side shoots. Prefers cool weather.
Companion Planting
Good Companions
Avoid Planting Near
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Kai Lan in Other Locations
Frequently Asked Questions
When should I plant Kai Lan in Spencer County, KY?
Spencer County is in Zone 6b with an average last frost of April 8. Plan your Kai Lan planting based on this frost date — see the calendar above for exact timing.
What planting zone is Spencer County, KY?
Spencer County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 8 and first fall frost is October 29.
When should I plant Kai Lan in Spencer County, KY?
In Spencer County, KY, plant Kai Lan after the last frost (around April 8) and before the first frost (around October 29). Best results when soil holds above 50°F.
What growing zone is Spencer County, KY for Kai Lan?
Spencer County sits in USDA Zone 6b. Kai Lan grows reliably in zones 2a through 11b, so it's a good fit here.
Can Kai Lan grow in Spencer County's climate?
Yes — Kai Lan grows well in Spencer County's temperate climate. Spencer County averages a 204-day frost-free season, with last frost around April 8 and first frost around October 29.
Your Spencer County Garden Planner — Free
A 22-page printable planner built for Spencer County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.