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When to plant Sweet Corn in Okeechobee County, FL

Sweet Corn planted in Okeechobee County between February 1 and February 22 matures in 60–90 days — well before the December 20 first frost.

When to Plant Sweet Corn in Okeechobee County, FL

Okeechobee County, Florida Zone 10a August

August in Okeechobee County, Florida — your action list

We've pulled the most time-sensitive tasks for Okeechobee County, Florida this August and put them front and centre. Tackle them in order.

Avg. last frost January 25
Avg. first frost December 20
Soil temp (4") 97°F
Watering Low
Pest pressure High
Daylight 13 hrs
  1. Plant fall tomatoes & peppers

    Late August is your fall transplant window. Pick heat-tolerant determinate tomatoes (Heatmaster, Solar Fire, Phoenix). They'll set fruit through fall.

  2. Direct-sow brassicas indoors or in shade

    Broccoli, cauliflower, cabbage, Brussels sprouts germinate better in cooler conditions. Start indoors or under shade cloth, transplant in September.

  3. Refresh mulch & drip lines

    Check drip irrigation for clogs (afternoon thunderstorm grit). Top off mulch in all beds before the cool-season crops go in.

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Sweet corn is bred for high sugar content in its kernels, which convert to starch rapidly after harvest. Modern supersweet varieties hold their sweetness longer.

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 Sweet Corn may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Sweet Corn 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

Okeechobee County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.8

Drainage

Well Drained

Sweet Corn Planting Risk Windows

Early Start (70% safe) ✓ Fits season (218 days to spare)
Transplant: Jan 19 🍅 Harvest: Mar 23 – May 4
Recommended (50%) ✓ Fits season (224 days to spare)
Transplant: Jan 25 🍅 Harvest: Mar 29 – May 10
Safe Start (90%) ✓ Fits season (202 days to spare)
Transplant: Feb 21 🍅 Harvest: Apr 25 – Jun 6

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 Sweet Corn's growing requirements.

Soil pH

Your soil pH (5.2–5.8) is more acidic than Sweet Corn 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. Sweet Corn will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Sweet Corn.

Organic Matter

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

How to Plant Sweet Corn

1"
Planting Depth
12"
Between Plants
36"
Between Rows

Succession Planting Sweet Corn

6
successive plantings in your 329-day season

Sow every 6.9 weeks. Last sowing by Sep 21 to harvest before frost.

Sweet Corn Water Budget

Plant needs
1.5″/week
Rainfall provides
0.6″/week
You supply
1.6″/week
Watering frequency 2-3 times/week
Season total 4,648 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Sweet Corn

Sweet Corn needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Sweet Corn Needs Rainfall You Supplement Action
Jan 6.5" 2.5" 4" 🚿 Regular watering
Feb 6.5" 2.4" 4.1" 🚿 Regular watering
Mar 6.5" 3.2" 3.3" 🚿 Regular watering
Apr 6.5" 2.2" 4.3" 🚿 Regular watering
May 6.5" 3.5" 3" 💧 Light watering
Jun 6.5" 6.8" 0" ✅ Rainfall sufficient
Jul 6.5" 6.9" 0" ✅ Rainfall sufficient
Aug 6.5" 7.6" 0" ✅ Rainfall sufficient
Sep 6.5" 6.6" 0" ✅ Rainfall sufficient
Oct 6.5" 3.5" 3" 💧 Light watering
Nov 6.5" 2.2" 4.3" 🚿 Regular watering
Dec 6.5" 2.1" 4.4" 🚿 Regular 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.

Sweet Corn 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.

Sweet Corn needs ~1,931 GDD — county provides 8,497 GDD Excellent fit

Sweet Corn Planting Timeline — Okeechobee County, FL

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow February 1 Feb 1 – Feb 22
Harvest April 5 Apr 5 – May 17

Plant 1" deep · 12" apart · Rows 36" apart

Month-by-Month Timeline

MonthActivities
January
February Direct Sow
March
April Harvest
May Harvest
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

329 days in Okeechobee County

Growing Tips for Sweet Corn in Okeechobee County

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

Sandy soil in Okeechobee County dries quickly — mulch Sweet Corn 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 Sweet Corn and water deeply in the morning.

Common pests for Sweet Corn in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

General growing tips

Plant in blocks of at least 4 rows for wind pollination. Direct sow after soil is warm. Isolate supersweet varieties from other corn types to prevent cross-pollination.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sweet Corn in Okeechobee County, FL?

Okeechobee County is in Zone 10a with an average last frost of January 25. Plan your Sweet Corn 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.

When should I plant Sweet Corn in Okeechobee County, FL?

In Okeechobee County, FL, plant Sweet Corn after the last frost (around January 25) and before the first frost (around December 20). Best results when soil holds above 50°F.

What growing zone is Okeechobee County, FL for Sweet Corn?

Okeechobee County sits in USDA Zone 10a. Sweet Corn grows reliably in zones 3a through 11b, so it's a good fit here.

Can Sweet Corn grow in Okeechobee County's climate?

Yes — Sweet Corn grows well in Okeechobee County's temperate climate. Okeechobee County averages a 330-day frost-free season, with last frost around January 25 and first frost around December 20.

🌱

Your Okeechobee County Garden Planner — Free

A 22-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: August 2026.

Sources & credits

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