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When to Plant Collard Greens in Okeechobee County, FL

Okeechobee County, Florida Zone 10a May

May to-do list for Okeechobee County, Florida

A quick May briefing for Okeechobee County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost January 25
Avg. first frost December 20
Soil temp (4") 79°F
Watering Moderate
Pest pressure High
Daylight 13.4 hrs
  1. It's harvest week for collard greens

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

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Collard greens are a heat-tolerant member of the cabbage family with large, sturdy leaves. They are a Southern staple and one of the most nutritious leafy greens.

Okeechobee County, Florida is in USDA Zone 10a. The average last spring frost is January 25 and the first fall frost is December 20, giving you a growing season of approximately 329 days.

At an elevation of 139 feet, Okeechobee County receives approximately 49.6 inches of rainfall annually with predominantly sand soil. Summer highs average 101°F, so Collard Greens may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Collard Greens will need more frequent watering and organic matter to retain nutrients.

Okeechobee County, FL (Zone 10a) Year-round
329 days
Last Spring Frost January 25
329 growing days
First Fall Frost December 20
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Okeechobee County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (204 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Mar 16 – May 18
Recommended (50%) ✓ Fits season (210 days to spare)
Start indoors: Dec 28 Transplant: Jan 25 🍅 Harvest: Mar 22 – May 24
Safe Start (90%) ✓ Fits season (188 days to spare)
Start indoors: Jan 24 Transplant: Feb 21 🍅 Harvest: Apr 18 – Jun 20

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 Okeechobee County

How your county's soil matches Collard Greens's growing requirements.

Soil pH

Your soil pH (5.2–5.8) is more acidic than Collard Greens prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Collard Greens.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting Collard Greens.

How to Plant Collard Greens

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Collard Greens

7
successive plantings in your 329-day season

Sow every 6.3 weeks. Last sowing by Oct 06 to harvest before frost.

For a dedicated fall crop, sow by Oct 25.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.6″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,441 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Collard Greens

Collard Greens needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Collard Greens Needs Rainfall You Supplement Action
Jan 3.5" 2.5" 1" 💧 Light watering
Feb 3.5" 2.4" 1.1" 💧 Light watering
Mar 3.5" 3.2" 0.3" 💧 Light watering
Apr 3.5" 2.2" 1.3" 💧 Light watering
May 3.5" 3.5" 0" ✅ Rainfall sufficient
Jun 3.5" 6.8" 0" ✅ Rainfall sufficient
Jul 3.5" 6.9" 0" ✅ Rainfall sufficient
Aug 3.5" 7.6" 0" ✅ Rainfall sufficient
Sep 3.5" 6.6" 0" ✅ Rainfall sufficient
Oct 3.5" 3.5" 0" ✅ Rainfall sufficient
Nov 3.5" 2.2" 1.3" 💧 Light watering
Dec 3.5" 2.1" 1.4" 💧 Light watering

Water needs are for active growing months only (Jan–Dec in Okeechobee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Collard Greens 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.

Collard Greens needs ~1,674 GDD — county provides 8,497 GDD Excellent fit

Collard Greens Planting Timeline — Okeechobee County, FL

Collard Greens Planting Calendar

Activity When Date Range
Start Indoors December 28 Dec 28 – Jan 11
Transplant Outdoors January 25 Jan 25 – Feb 8
Direct Sow January 4 Jan 4 – Jan 25
Harvest March 22 Mar 22 – May 24
Fall Sowing October 25 Oct 25 – Nov 8

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors Transplant Outdoors Direct Sow
February Transplant Outdoors
March Harvest
April Harvest
May Harvest
June
July
August
September
October Fall Sowing
November Fall Sowing
December Start Indoors
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · 1-2 times/week

📅 Days to Maturity

55–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

329 days in Okeechobee County

Growing Tips for Collard Greens in Okeechobee County

Direct sow Collard Greens outdoors after January 25 in Okeechobee County when soil has warmed and frost danger has passed.

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

With summer highs reaching 101°F in Okeechobee County, provide afternoon shade for Collard Greens and water deeply in the morning.

Common pests for Collard Greens in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors or direct sow 4-6 weeks before last frost. Harvest lower leaves first, leaving the growing tip intact. Flavor improves after exposure to frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Collard Greens in Okeechobee County, FL?

Okeechobee County is in Zone 10a with an average last frost of January 25. Plan your Collard Greens planting based on this frost date — see the calendar above for exact timing.

What planting zone is Okeechobee County, FL?

Okeechobee County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 25 and first fall frost is December 20.

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Your Okeechobee County Garden Planner — Free

A 24-page printable planner built for Okeechobee County (Zone 10a). 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 Okeechobee County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.