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When to Plant Crosne in Wayne County, TN

Crosne (Chinese artichoke) produces small, segmented white tubers with a crunchy texture and mild artichoke-nutty flavor. They are a rare delicacy in French cuisine.

Wayne County, Tennessee is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 26, giving you a growing season of approximately 200 days.

At an elevation of 1,680 feet, Wayne County receives approximately 52.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 92ยฐF, providing good warmth for Crosne during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crosne root diseases.

Wayne County, TN (Zone 7a) Long season
200 days
Last Spring Frost April 9
200 growing days
First Fall Frost October 26

Wayne County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Mar 31 🍅 Harvest: Sep 1 – Nov 3
Recommended (50%) ✗ May not fit
Transplant: Apr 9 🍅 Harvest: Sep 10 – Nov 12
Safe Start (90%) ✗ May not fit
Transplant: Apr 21 🍅 Harvest: Sep 22 – Nov 24

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Crosne needs ~3,325 GDD — county provides 3,800 GDD Good fit

Crosne Planting Timeline โ€” Wayne County, TN

Crosne Planting Calendar

Activity When Date Range
Direct Sow March 26 Mar 26 โ€“ Apr 16
Fall Sowing August 17 Aug 17 โ€“ Aug 31
Harvest August 27 Aug 27 โ€“ Oct 29

Plant 0.5" deep ยท 6" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Direct Sow
April Direct Sow
May โ€”
June โ€”
July โ€”
August Fall Sowing Harvest
September Harvest
October Harvest
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

150โ€“200 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7a

Growing Season

200 days

Growing Tips for Wayne County

Plant tubers 3 inches deep in spring. Mark the location well as plants die back. Harvest in late fall after frost. Leave some tubers in ground for next year. Very labor-intensive to harvest.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Crosne in Wayne County, TN?

Wayne County is in Zone 7a with an average last frost of April 9. Plan your Crosne planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wayne County, TN?

Wayne County, Tennessee is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 26.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wayne County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wayne County, TN. Local conditions may vary. Last updated: April 2026.