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When to Plant Crosne in Henry County, GA

Henry County, Georgia Zone 8a May

This month in Henry County, Georgia

Your garden in Henry County, Georgia is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 25
Avg. first frost November 8
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs

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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.

Henry County, Georgia is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 8, giving you a growing season of approximately 228 days.

At an elevation of 379 feet, Henry County receives approximately 52.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°F, providing good warmth for Crosne during the growing season. Clay soil retains moisture well for Crosne, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crosne root diseases.

Henry County, GA (Zone 8a) Long season
228 days
Last Spring Frost March 25
228 growing days
First Fall Frost November 8

Henry County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (14 days to spare)
Transplant: Mar 15 🍅 Harvest: Aug 16 – Oct 18
Recommended (50%) ✓ Fits season (11 days to spare)
Transplant: Mar 25 🍅 Harvest: Aug 26 – Oct 28
Safe Start (90%) ✓ Fits season (10 days to spare)
Transplant: Apr 17 🍅 Harvest: Sep 18 – Nov 20

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.

Soil Compatibility in Henry County

How your county's soil matches Crosne's growing requirements.

Soil pH

Your soil pH (5.6–6.7) overlaps with Crosne's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Henry County is excellent for Crosne — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Crosne.

How to Plant Crosne

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 67 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Crosne

Crosne needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Crosne Needs Rainfall You Supplement Action
Jan 4.7" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.3" 5.4" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4.2" 0.1" 💧 Light watering
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5.1" 0" ✅ Rainfall sufficient
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 4.3" 4.2" 0.1" 💧 Light watering
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Henry County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Crosne Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Crosne needs ~3,456 GDD — county provides 4,503 GDD Excellent fit

Crosne Planting Timeline — Henry County, GA

Crosne Planting Calendar

Activity When Date Range
Direct Sow March 11 Mar 11 – Apr 1
Harvest August 12 Aug 12 – Oct 14
Fall Sowing August 30 Aug 30 – Sep 13

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

150–200 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

228 days in Henry County

Growing Tips for Crosne in Henry County

Direct sow Crosne outdoors after March 25 in Henry County when soil has warmed and frost danger has passed.

With Henry County's clay soil (30% clay), work in 3-4 inches of compost before planting Crosne. Avoid tilling when soil is wet to prevent compaction.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crosne in Henry County, GA?

Henry County is in Zone 8a with an average last frost of March 25. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.

What planting zone is Henry County, GA?

Henry County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 8.

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Your Henry County Garden Planner — Free

A 24-page printable planner built for Henry 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.

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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 Henry County, GA. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.