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When to Plant Cardoon in Amite County, MS

Amite County, Mississippi Zone 8b May

This month in Amite County, Mississippi

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 6
Avg. first frost November 16
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs

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Cardoon is a large thistle relative of the artichoke, grown for its edible leaf stalks. It has dramatic silvery foliage and makes a striking ornamental as well.

Amite County, Mississippi is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 16, giving you a growing season of approximately 255 days.

At an elevation of 375 feet, Amite County receives approximately 58.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°F, providing good warmth for Cardoon during the growing season. Clay soil retains moisture well for Cardoon, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cardoon root diseases.

Amite County, MS (Zone 8b) Long season
255 days
Last Spring Frost March 6
255 growing days
First Fall Frost November 16
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Amite County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Mar 13 🍅 Harvest: Jul 17 – Aug 28
Recommended (50%) ✓ Fits season (73 days to spare)
Transplant: Mar 20 🍅 Harvest: Jul 24 – Sep 4
Safe Start (90%) ✓ Fits season (69 days to spare)
Transplant: Apr 17 🍅 Harvest: Aug 21 – Oct 2

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 Amite County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Cardoon's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Cardoon.

How to Plant Cardoon

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 117 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Cardoon

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

Month Cardoon Needs Rainfall You Supplement Action
Jan 5.6" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 4.3" 6.6" 0" ✅ Rainfall sufficient
Apr 4.3" 4.5" 0" ✅ Rainfall sufficient
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 5.2" 0" ✅ Rainfall sufficient
Jul 4.3" 5.5" 0" ✅ Rainfall sufficient
Aug 4.3" 5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.6" 0" ✅ Rainfall sufficient
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 4.2" 0.1" 💧 Light watering
Dec 4.9" 0" ❄️ Dormant

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

Cardoon 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.

Cardoon needs ~2,565 GDD — county provides 4,845 GDD Excellent fit

Cardoon Planting Timeline — Amite County, MS

Cardoon Planting Calendar

Activity When Date Range
Transplant Outdoors March 20 Mar 20 – Apr 3
Harvest July 24 Jul 24 – Sep 4

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

120–150 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

255 days in Amite County

Growing Tips for Cardoon in Amite County

Direct sow Cardoon outdoors after March 06 in Amite County when soil has warmed and frost danger has passed.

With Amite County's clay soil (29% clay), work in 3-4 inches of compost before planting Cardoon. Avoid tilling when soil is wet to prevent compaction.

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

General growing tips

Blanch stalks by wrapping with cardboard or tying leaves together 3-4 weeks before harvest. Provide deep, rich soil and consistent moisture. Protect from hard frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cardoon in Amite County, MS?

Amite County is in Zone 8b with an average last frost of March 6. Plan your Cardoon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Amite County, MS?

Amite County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 16.

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Your Amite County Garden Planner — Free

A 24-page printable planner built for Amite County (Zone 8b). 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 Amite County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

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