When to plant Cardoon in Bradford County, FL
Plant Cardoon in Bradford County, between March 15 and March 29 — the only viable window. Zone 9a's short season (272 frost-free days) rules out a fall crop.
When to Plant Cardoon in Bradford County, FL
This month in Bradford County, Florida
July is a pivotal month for Bradford County, Florida gardens. Focus on these tasks first and you'll set up the rest of the season for success.
-
Collect cardoon at their peak
Check every 1–2 days. Many of these get tough or go to seed if you wait too long.
Coming up in August — start thinking about
- First harvests: cardoon
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.
Bradford County, Florida is in USDA Zone 9a. The average last spring frost is March 1 and the first fall frost is November 28, giving you a growing season of approximately 272 days.
At an elevation of 297 feet, Bradford County receives approximately 51.9 inches of rainfall annually with predominantly sand soil. Summer highs average 98°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.
Bradford County Soil Profile
Soil Type
Sand
Soil pH
4.9-6.1
Drainage
Well Drained
Cardoon Planting Risk Windows
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 Bradford County
How your county's soil matches Cardoon's growing requirements.
Soil pH
Your soil pH (4.9–6.1) is more acidic than Cardoon prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Bradford 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 (1.7%). Add 2-3 inches of compost before planting Cardoon.
How to Plant Cardoon
Cardoon Water Budget
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 | — | 2.3" | 0" | ❄️ Dormant |
| Feb | — | 2.5" | 0" | ❄️ Dormant |
| Mar | 4.3" | 3.3" | 1" | 💧 Light watering |
| Apr | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| May | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Jun | 4.3" | 6.9" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 8.7" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.1" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 6.9" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4" | 0.3" | 💧 Light watering |
| Nov | 4.3" | 2.1" | 2.2" | 🚿 Regular watering |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Bradford 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 Planting Timeline — Bradford 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
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
272 days in Bradford County
Growing Tips for Cardoon in Bradford County
Direct sow Cardoon outdoors after March 01 in Bradford County when soil has warmed and frost danger has passed.
Sandy soil in Bradford 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 98°F in Bradford 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
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Check more plant combinations with our Companion Planting Checker →
Cardoon in Other Locations
Frequently Asked Questions
When should I plant Cardoon in Bradford County, FL?
Bradford 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 Bradford County, FL?
Bradford County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 1 and first fall frost is November 28.
When should I plant Cardoon in Bradford County, FL?
In Bradford County, FL, plant Cardoon after the last frost (around March 1) and before the first frost (around November 28). Best results when soil holds above 50°F.
What growing zone is Bradford County, FL for Cardoon?
Bradford 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 Bradford County's climate?
Yes — Cardoon grows well in Bradford County's temperate climate. Bradford County averages a 272-day frost-free season, with last frost around March 1 and first frost around November 28.
Your Bradford County Garden Planner — Free
A 22-page printable planner built for Bradford 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.