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When to Plant Artichoke in Warrick County, IN

Warrick County, Indiana Zone 7a May

May in the garden — Warrick County, Indiana

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Warrick County, Indiana.

Avg. last frost April 6
Avg. first frost October 28
Soil temp (4") 65°F
Watering Low
Pest pressure Low
Daylight 14.1 hrs

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Globe artichokes are large thistle-like perennials prized for their edible flower buds. They produce striking silvery foliage and can be grown as ornamentals.

Warrick County, Indiana is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 28, giving you a growing season of approximately 205 days.

At an elevation of 967 feet, Warrick County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Artichoke during the growing season.

Warrick County, IN (Zone 7a) Long season
205 days
Last Spring Frost April 6
205 growing days
First Fall Frost October 28

Warrick County Soil Profile

Soil Type

Silt Loam

Soil pH

6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 13 🍅 Harvest: Aug 17 – Oct 26
Recommended (50%) ✗ May not fit
Transplant: Apr 20 🍅 Harvest: Aug 24 – Nov 2
Safe Start (90%) ✗ May not fit
Transplant: May 4 🍅 Harvest: Sep 7 – Nov 16

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 Warrick County

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

Soil pH

Your soil pH (6.0–6.7) is more acidic than Artichoke prefers (6.5–8.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Warrick County is excellent for Artichoke — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Artichoke.

Organic Matter

Organic matter is moderate (4.0%). Annual compost additions will help Artichoke.

How to Plant Artichoke

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,213 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Artichoke

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

Month Artichoke Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.7" 0" ❄️ Dormant
Apr 4.3" 2.9" 1.4" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 4.3" 0" ✅ Rainfall sufficient
Aug 4.3" 3.5" 0.8" 💧 Light watering
Sep 4.3" 2.9" 1.4" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 2.7" 0" ❄️ Dormant
Dec 2.2" 0" ❄️ Dormant

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

Artichoke 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.

Artichoke needs ~2,175 GDD — county provides 2,972 GDD Excellent fit

Artichoke Planting Timeline — Warrick County, IN

Artichoke Planting Calendar

Activity When Date Range
Transplant Outdoors April 20 Apr 20 – May 4
Harvest August 24 Aug 24 – Nov 2

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July
August Harvest
September Harvest
October Harvest
November Harvest
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6.5–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 7a

📆 Growing Season

205 days in Warrick County

Growing Tips for Artichoke in Warrick County

Direct sow Artichoke outdoors after April 06 in Warrick County when soil has warmed and frost danger has passed.

Common pests for Artichoke in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8-10 weeks before last frost. Provide consistent moisture and mulch heavily. Harvest buds before scales begin to open for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Artichoke in Warrick County, IN?

Warrick County is in Zone 7a with an average last frost of April 6. Plan your Artichoke planting based on this frost date — see the calendar above for exact timing.

What planting zone is Warrick County, IN?

Warrick County, Indiana is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is October 28.

🌱

Your Warrick County Garden Planner — Free

A 24-page printable planner built for Warrick 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.

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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 Warrick County, IN. Local conditions may vary. Last updated: May 2026.

Sources & credits

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