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When to plant Cardoon in Grenada County, MS

Grenada County's 215-day season only supports one Cardoon planting per year. Sow between April 13 and April 27 for the best chance at full maturity before October 31.

When to Plant Cardoon in Grenada County, MS

Grenada County, Mississippi Zone 8a July

Your July game plan for Grenada County, Mississippi

July rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Grenada County, Mississippi.

Avg. last frost March 30
Avg. first frost October 31
Soil temp (4") 87°F
Watering Low
Pest pressure High
Daylight 14 hrs
A few tasks this July that'll pay off in August
  • First harvests: cardoon

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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.

Grenada County, Mississippi is in USDA Zone 8a. The average last spring frost is March 30 and the first fall frost is October 31, giving you a growing season of approximately 215 days.

At an elevation of 101 feet, Grenada County receives approximately 49.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°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.

Grenada County, MS (Zone 8a) Long season
215 days
Last Spring Frost March 30
215 growing days
First Fall Frost October 31

Grenada County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.4

Drainage

Well Drained

Cardoon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (37 days to spare)
Transplant: Apr 5 🍅 Harvest: Aug 9 – Sep 20
Recommended (50%) ✓ Fits season (33 days to spare)
Transplant: Apr 13 🍅 Harvest: Aug 17 – Sep 28
Safe Start (90%) ✓ Fits season (39 days to spare)
Transplant: Apr 30 🍅 Harvest: Sep 3 – Oct 15

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 Grenada County

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

Soil pH

Your soil pH (5.6–6.4) overlaps with Cardoon's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Cardoon

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

Cardoon 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 74 gal / 100 sq ft

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 4.5" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.3" 4.4" 0" ✅ Rainfall sufficient
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 4.8" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 3.8" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Grenada 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 ~2,362 GDD — county provides 3,762 GDD Excellent fit

Cardoon Planting Timeline — Grenada County, MS

Cardoon Planting Calendar

Activity When Date Range
Transplant Outdoors April 13 Apr 13 – Apr 27
Harvest August 17 Aug 17 – Sep 28

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

Month-by-Month Timeline

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

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 8a

📆 Growing Season

215 days in Grenada County

Growing Tips for Cardoon in Grenada County

Direct sow Cardoon outdoors after March 30 in Grenada County when soil has warmed and frost danger has passed.

With Grenada County's clay soil (28% 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 Grenada County, MS?

Grenada County is in Zone 8a with an average last frost of March 30. Plan your Cardoon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grenada County, MS?

Grenada County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 30 and first fall frost is October 31.

When should I plant Cardoon in Grenada County, MS?

In Grenada County, MS, plant Cardoon after the last frost (around March 30) and before the first frost (around October 31). Best results when soil holds above 50°F.

What growing zone is Grenada County, MS for Cardoon?

Grenada County sits in USDA Zone 8a. Cardoon grows reliably in zones 7a through 10b, so it's a good fit here.

Can Cardoon grow in Grenada County's climate?

Yes — Cardoon grows well in Grenada County's temperate climate. Grenada County averages a 215-day frost-free season, with last frost around March 30 and first frost around October 31.

🌱

Your Grenada County Garden Planner — Free

A 22-page printable planner built for Grenada 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 Grenada County, MS. Local conditions may vary. Last updated: July 2026.

Sources & credits

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