When to plant Foxglove in Boyle County, KY
In Boyle County, plant Foxglove in spring between April 20 and May 11, once soil temps hold above 50°F. Boyle County's last frost averages April 13, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between and — roughly 80–120 days before the first frost on October 26.
When to Plant Foxglove in Boyle County, KY
Foxglove (Digitalis purpurea) is a stately cottage garden classic, sending up dramatic 3–5 foot spires of tubular flowers — spotted purple, pink, white, or cream — in late spring and early summer. Technically biennial (flowering in its second year), foxglove perpetuates itself so freely from self-sown seed that established plantings appear to be permanent perennials. A key source plant for the heart medication digitalis, all parts are highly toxic if ingested. Bumblebees are the primary pollinators, crawling deep into each bell-shaped flower. Partial shade and cool, moist woodland-edge conditions suit foxglove best; it resents heat and drought.
Boyle County, Kentucky is in USDA Zone 7a. The average last spring frost is April 13 and the first fall frost is October 26, giving you a growing season of approximately 196 days.
At an elevation of 2,831 feet, Boyle County receives approximately 50.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Foxglove during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Foxglove root diseases.
Boyle County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Foxglove Planting Timeline — Boyle County, KY
Foxglove Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 16 | Feb 16 – Mar 2 |
| Transplant Outdoors | April 20 | Apr 20 – May 4 |
| Direct Sow | April 20 | Apr 20 – May 11 |
| Bloom | June 8 | Jun 8 – Jul 13 |
Plant 0.1" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | Bloom |
| July | Bloom |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
80–120 days
🧪 Soil pH
Needs 5.5–6.5 · Your soil: N/A
🗺️ USDA Zone
Zone 7a
📆 Growing Season
196 days in Boyle County
Growing Tips for Boyle County
Sow seeds indoors 8–10 weeks before last frost or direct-sow outdoors in late spring/early summer for next-year bloom (biennial cycle). Surface-sow — seeds need light to germinate. Transplant after last frost into cool, moist, well-amended soil. Morning sun with afternoon shade is ideal; full shade reduces bloom but is tolerated. Keep consistently moist. First-year plants form a basal rosette only; second-year plants produce flower spikes. After bloom, cut the main spike before seed scatters to prevent excessive spreading, or leave some spikes to self-seed for naturalizing. Perennial species (D. grandiflora, D. x mertonensis) maintain clumps without requiring self-seeding. Wear gloves when handling — all plant parts toxic.
Companion Planting
Good Companions
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Foxglove in Other Locations
Frequently Asked Questions
When should I plant Foxglove in Boyle County, KY?
Boyle County is in Zone 7a with an average last frost of April 13. Plan your Foxglove planting based on this frost date — see the calendar above for exact timing.
What planting zone is Boyle County, KY?
Boyle County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 13 and first fall frost is October 26.
When should I plant Foxglove in Boyle County, KY?
In Boyle County, KY, plant Foxglove after the last frost (around April 13) and before the first frost (around October 26). Best results when soil holds above 50°F.
What growing zone is Boyle County, KY for Foxglove?
Boyle County sits in USDA Zone 7a. Foxglove grows reliably in zones 3a through 9a, so it's a good fit here.
Can Foxglove grow in Boyle County's climate?
Yes — Foxglove grows well in Boyle County's temperate climate. Boyle County averages a 196-day frost-free season, with last frost around April 13 and first frost around October 26.
Your Boyle County Garden Planner — Free
A 22-page printable planner built for Boyle 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.