When to plant Sunchoke in Franklin County, AR
Franklin County sits in cold Zone 8a. Plant Sunchoke April 12–April 26 for the single annual harvest; the November 1 first frost closes the window.
When to Plant Sunchoke in Franklin County, AR
Sunchokes (Jerusalem artichokes) are a native sunflower relative grown for their knobby, nutty-flavored tubers. They are extremely productive and nearly impossible to eradicate.
Franklin County, Arkansas is in USDA Zone 8a. The average last spring frost is March 29 and the first fall frost is November 1, giving you a growing season of approximately 217 days.
At an elevation of 1,224 feet, Franklin County receives approximately 47.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Sunchoke during the growing season.
Franklin County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Sunchoke Planting Timeline — Franklin County, AR
Sunchoke Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 12 | Apr 12 – Apr 26 |
| Harvest | August 2 | Aug 2 – Sep 27 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
110–150 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 8a
📆 Growing Season
217 days in Franklin County
Growing Tips for Franklin County
Plant tubers 4 inches deep in early spring. Contain plants with barriers as they spread aggressively. Harvest after frost or leave in ground and dig as needed through winter.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Sunchoke in Other Locations
Frequently Asked Questions
When should I plant Sunchoke in Franklin County, AR?
Franklin County is in Zone 8a with an average last frost of March 29. Plan your Sunchoke planting based on this frost date — see the calendar above for exact timing.
What planting zone is Franklin County, AR?
Franklin County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 29 and first fall frost is November 1.
When should I plant Sunchoke in Franklin County, AR?
In Franklin County, AR, plant Sunchoke after the last frost (around March 29) and before the first frost (around November 1). Best results when soil holds above 50°F.
What growing zone is Franklin County, AR for Sunchoke?
Franklin County sits in USDA Zone 8a. Sunchoke grows reliably in zones 3a through 9b, so it's a good fit here.
Can Sunchoke grow in Franklin County's climate?
Yes — Sunchoke grows well in Franklin County's temperate climate. Franklin County averages a 217-day frost-free season, with last frost around March 29 and first frost around November 1.
Your Franklin County Garden Planner — Free
A 22-page printable planner built for Franklin County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.