When to plant Cardoon in Columbia County, FL
Columbia County sits in cold Zone 9a. Plant Cardoon March 15–March 29 for the single annual harvest; the November 27 first frost closes the window.
When to Plant Cardoon in Columbia County, FL
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.
Columbia County, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 27, giving you a growing season of approximately 271 days.
At an elevation of 156 feet, Columbia County receives approximately 61 inches of rainfall annually with predominantly sand soil. Summer highs average 96°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.
Columbia County Soil Profile
Soil Type
Sand
Soil pH
4.8-5.7
Drainage
Well Drained
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 | — | 2.5" | 0" | ❄️ Dormant |
| Feb | — | 3.4" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Apr | 4.3" | 2.9" | 1.4" | 💧 Light watering |
| May | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 9.3" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 10" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 8" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7.1" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.9" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Dec | — | 2.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Columbia County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Cardoon Planting Timeline — Columbia County, FL
Cardoon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 15 | Mar 15 – Mar 29 |
| Harvest | July 19 | Jul 19 – Aug 30 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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
Moderate — regular watering
📅 Days to Maturity
120–150 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 9a
📆 Growing Season
271 days in Columbia County
Growing Tips for Columbia County
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
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Cardoon in Other Locations
Frequently Asked Questions
When should I plant Cardoon in Columbia County, FL?
Columbia County is in Zone 9a with an average last frost of March 1. Plan your Cardoon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Columbia County, FL?
Columbia County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 1 and first fall frost is November 27.
When should I plant Cardoon in Columbia County, FL?
In Columbia County, FL, plant Cardoon after the last frost (around March 1) and before the first frost (around November 27). Best results when soil holds above 50°F.
What growing zone is Columbia County, FL for Cardoon?
Columbia County sits in USDA Zone 9a. Cardoon grows reliably in zones 7a through 10b, so it's a good fit here.
Can Cardoon grow in Columbia County's climate?
Yes — Cardoon grows well in Columbia County's temperate climate. Columbia County averages a 271-day frost-free season, with last frost around March 1 and first frost around November 27.
Your Columbia County Garden Planner — Free
A 22-page printable planner built for Columbia 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.