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When to Plant Cardoon in Lowndes County, GA

Lowndes County, Georgia Zone 9a May

Your May planting checklist for Lowndes County, Georgia

We've pulled the most time-sensitive tasks for Lowndes County, Georgia this May and put them front and centre. Tackle them in order.

Avg. last frost March 3
Avg. first frost November 26
Soil temp (4") 72°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.

Lowndes County, Georgia is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 26, giving you a growing season of approximately 268 days.

At an elevation of 396 feet, Lowndes County receives approximately 57.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Cardoon may need afternoon shade and extra watering during peak heat. 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.

Lowndes County, GA (Zone 9a) Long season
268 days
Last Spring Frost March 3
268 growing days
First Fall Frost November 26

Lowndes County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Transplant: Mar 5 🍅 Harvest: Jul 9 – Aug 20
Recommended (50%) ✓ Fits season (86 days to spare)
Transplant: Mar 17 🍅 Harvest: Jul 21 – Sep 1
Safe Start (90%) ✓ Fits season (86 days to spare)
Transplant: Apr 9 🍅 Harvest: Aug 13 – Sep 24

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 Lowndes County

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

Soil pH

Your soil pH (5.6–6.5) overlaps with Cardoon's range (6.0–7.5), though not a perfect match.

Soil Texture

The clay loam soil in Lowndes 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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 240 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 5.4" 0" ❄️ Dormant
Feb 4.4" 0" ❄️ Dormant
Mar 4.3" 5.6" 0" ✅ Rainfall sufficient
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.2" 0" ✅ Rainfall sufficient
Sep 4.3" 4.6" 0" ✅ Rainfall sufficient
Oct 4.3" 4.3" 0" ✅ Rainfall sufficient
Nov 4.3" 4.4" 0" ✅ Rainfall sufficient
Dec 4.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Lowndes 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 ~3,071 GDD — county provides 6,097 GDD Excellent fit

Cardoon Planting Timeline — Lowndes County, GA

Cardoon Planting Calendar

Activity When Date Range
Transplant Outdoors March 17 Mar 17 – Mar 31
Harvest July 21 Jul 21 – Sep 1

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June
July Harvest
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 9a

📆 Growing Season

268 days in Lowndes County

Growing Tips for Cardoon in Lowndes County

Direct sow Cardoon outdoors after March 03 in Lowndes County when soil has warmed and frost danger has passed.

With Lowndes County's clay soil (27% clay), work in 3-4 inches of compost before planting Cardoon. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Lowndes County, provide afternoon shade for Cardoon and water deeply in the morning.

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 Lowndes County, GA?

Lowndes County is in Zone 9a with an average last frost of March 3. Plan your Cardoon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lowndes County, GA?

Lowndes County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 26.

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Your Lowndes County Garden Planner — Free

A 24-page printable planner built for Lowndes County (Zone 9a). 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 Lowndes County, GA. Local conditions may vary. Last updated: May 2026.

Sources & credits

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