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When to Plant Crosne in Clark County, IN

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.

Clark County, Indiana is in USDA Zone 6b. The average last spring frost is April 10 and the first fall frost is October 22, giving you a growing season of approximately 195 days.

At an elevation of 1,265 feet, Clark County receives approximately 36.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Crosne during the growing season.

Clark County, IN (Zone 6b) Moderate season
195 days
Last Spring Frost April 10
195 growing days
First Fall Frost October 22

Clark County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (0 days to spare)
Transplant: Apr 4 🍅 Harvest: Sep 5 – Oct 17
Recommended (50%) ✗ May not fit
Transplant: Apr 10 🍅 Harvest: Sep 11 – Oct 23
Safe Start (90%) ✗ May not fit
Transplant: Apr 30 🍅 Harvest: Oct 1 – Nov 12

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
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 356 gal / 100 sq ft
Crosne needs ~2,669 GDD — county provides 2,973 GDD Good fit

Crosne Planting Timeline โ€” Clark County, IN

Crosne Planting Calendar

Activity When Date Range
Direct Sow March 27 Mar 27 โ€“ Apr 17
Fall Sowing August 13 Aug 13 โ€“ Aug 27
Harvest August 28 Aug 28 โ€“ Oct 9

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 6b

Growing Season

195 days

Growing Tips for Clark 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 Clark County, IN?

Clark County is in Zone 6b with an average last frost of April 10. Plan your Crosne planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Clark County, IN?

Clark County, Indiana is in USDA Hardiness Zone 6b. The average last spring frost is April 10 and first fall frost is October 22.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Clark County gardeners in Zone 6b 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 Clark County, IN. Local conditions may vary. Last updated: April 2026.