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When to plant Cardoon in Anthony, FL

In Anthony, Cardoon is a spring-only crop. Plant March 1–March 15 once soil hits 50°F.

When to Plant Cardoon in Anthony, FL

Marion County, Florida Zone 9a July

Marion County, Florida gardeners: here's your July plan

Here's what deserves your attention in Marion County, Florida this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost February 15
Avg. first frost December 1
Soil temp (4") 96°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Basket week: cardoon

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

August will be here before you know it — start on
  • 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.

Anthony, Florida is in USDA Zone 9a. The average last spring frost is February 15 and the first fall frost is December 1, giving you a growing season of approximately 289 days.

At an elevation of 244 feet, Marion County receives approximately 54.1 inches of rainfall annually with predominantly sand soil. Summer highs average 97°F, so Cardoon may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cardoon will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cardoon root diseases.

Anthony, FL (Zone 9a) Year-round
289 days
Last Spring Frost February 15
289 growing days
First Fall Frost December 1

Anthony Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Cardoon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (108 days to spare)
Transplant: Feb 20 🍅 Harvest: Jun 26 – Aug 7
Recommended (50%) ✓ Fits season (107 days to spare)
Transplant: Mar 1 🍅 Harvest: Jul 5 – Aug 16
Safe Start (90%) ✓ Fits season (99 days to spare)
Transplant: Mar 29 🍅 Harvest: Aug 2 – Sep 13

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 Anthony

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

Soil pH

Your soil pH (4.8–5.9) is more acidic than Cardoon prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Marion County warms quickly in spring but drains fast. Cardoon will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Cardoon.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Cardoon.

How to Plant Cardoon

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

Cardoon Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,333 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 2.2" 0" ❄️ Dormant
Feb 4.3" 2.7" 1.6" 💧 Light watering
Mar 4.3" 3.5" 0.8" 💧 Light watering
Apr 4.3" 2.2" 2.1" 💧 Light watering
May 4.3" 3.6" 0.7" 💧 Light watering
Jun 4.3" 7.2" 0" ✅ Rainfall sufficient
Jul 4.3" 8.6" 0" ✅ Rainfall sufficient
Aug 4.3" 8.6" 0" ✅ Rainfall sufficient
Sep 4.3" 7.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 2.2" 2.1" 💧 Light watering
Dec 4.3" 2.1" 2.2" 🚿 Regular watering

Water needs are for active growing months only (Feb–Dec in Marion 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 6,597 GDD Excellent fit

Cardoon Planting Timeline — Anthony, FL

Cardoon Planting Calendar

Activity When Date Range
Transplant Outdoors March 1 Mar 1 – Mar 15
Harvest July 5 Jul 5 – Aug 16

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
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

120–150 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

289 days in Marion County

Growing Tips for Cardoon in Anthony

Direct sow Cardoon outdoors after February 15 in Marion County when soil has warmed and frost danger has passed.

Sandy soil in Marion County dries quickly — mulch Cardoon with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97°F in Marion 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 →

When should I plant Cardoon in Anthony, FL?

In Anthony, FL, plant Cardoon after the last frost (around February 15) and before the first frost (around December 1). Best results when soil holds above 50°F.

What growing zone is Anthony, FL for Cardoon?

Anthony sits in USDA Zone 9a. Cardoon grows reliably in zones 7a through 10b, so it's a good fit here.

Can Cardoon grow in Anthony's climate?

Yes — Cardoon grows well in Anthony's temperate climate. Anthony averages a 290-day frost-free season, with last frost around February 15 and first frost around December 1.

🌱

Your Marion County Garden Planner — Free

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