When to plant Corn in Summerfield, FL
Summerfield gardeners should plant Corn between February 22 and March 15 in spring. With Summerfield's Zone 9a climate (last frost February 15), Corn needs 60–100 days to mature — plant by August 23 for a full harvest.
When to Plant Corn in Summerfield, FL
July to-do list for Marion County, Florida
If you only do a handful of things in the garden this July, make it these. They're sequenced around your zone's frost timing.
Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.
Summerfield, 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 Corn may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Corn will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Corn root diseases.
Summerfield Soil Profile
Soil Type
Sand
Soil pH
4.8-5.9
Drainage
Well Drained
Corn 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 Summerfield
How your county's soil matches Corn's growing requirements.
Soil pH
Your soil pH (4.8–5.9) is more acidic than Corn prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Marion County warms quickly in spring but drains fast. Corn will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Corn.
Organic Matter
Organic matter is low (1.6%). Add 2-3 inches of compost before planting Corn.
How to Plant Corn
Succession Planting Corn
Sow every 6.9 weeks. Last sowing by Aug 23 to harvest before frost.
Corn Water Budget
Monthly Watering Guide for Corn
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 | Corn Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.2" | 0" | ❄️ Dormant |
| Feb | 6.5" | 2.7" | 3.8" | 🚿 Regular watering |
| Mar | 6.5" | 3.5" | 3" | 💧 Light watering |
| Apr | 6.5" | 2.2" | 4.3" | 🚿 Regular watering |
| May | 6.5" | 3.6" | 2.9" | 💧 Light watering |
| Jun | 6.5" | 7.2" | 0" | ✅ Rainfall sufficient |
| Jul | 6.5" | 8.6" | 0" | ✅ Rainfall sufficient |
| Aug | 6.5" | 8.6" | 0" | ✅ Rainfall sufficient |
| Sep | 6.5" | 7.4" | 0" | ✅ Rainfall sufficient |
| Oct | 6.5" | 3.9" | 2.6" | 💧 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 (Feb–Dec in Marion County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
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.
Corn Planting Timeline — Summerfield, FL
Corn Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 22 | Feb 22 – Mar 15 |
| Harvest | April 26 | Apr 26 – Jun 21 |
Plant 1" deep · 12" apart · Rows 36" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Direct Sow |
| March | Direct Sow |
| April | Harvest |
| May | Harvest |
| June | Harvest |
| 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
60–100 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
289 days in Marion County
Growing Tips for Corn in Summerfield
Direct sow Corn outdoors after February 15 in Marion County when soil has warmed and frost danger has passed.
Sandy soil in Marion County dries quickly — mulch Corn 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 Corn and water deeply in the morning.
Common pests for 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 rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.
Recommended Corn Varieties for Summerfield
Heat-tolerant varieties that silk well in high temps
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Corn in Other Locations
When should I plant Corn in Summerfield, FL?
In Summerfield, FL, plant Corn 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 Summerfield, FL for Corn?
Summerfield sits in USDA Zone 9a. Corn grows reliably in zones 3a through 11b, so it's a good fit here.
Can Corn grow in Summerfield's climate?
Yes — Corn grows well in Summerfield's temperate climate. Summerfield 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.