When to Plant Sweet Corn in Acadia Parish, LA
May in Acadia Parish, Louisiana — your action list
Welcome to May in Zone 9a. These are the moves that will have the biggest impact on your growing season.
-
Bring in the sweet corn
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
Before June arrives, get these ready
- First harvests: sweet corn
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.
Acadia Parish, Louisiana is in USDA Zone 9a. The average last spring frost is February 12 and the first fall frost is December 6, giving you a growing season of approximately 297 days.
At an elevation of 259 feet, Acadia Parish receives approximately 61.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 103°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Corn root diseases.
Acadia Parish Soil Profile
Soil Type
Sandy Loam
Soil pH
5-6.5
Drainage
Well Drained
Plant 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 Acadia Parish
How your county's soil matches Sweet Corn's growing requirements.
Soil pH
Your soil pH (5.0–6.5) is more acidic than Sweet Corn prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
Sandy soil in Acadia Parish warms quickly in spring but drains fast. Sweet Corn will need more frequent watering and regular compost additions to retain nutrients.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Sweet Corn.
How to Plant Sweet Corn
Succession Planting Sweet Corn
Sow every 6.9 weeks. Last sowing by Sep 07 to harvest before frost.
Plant Water Budget
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 | — | 5.2" | 0" | ❄️ Dormant |
| Feb | 6.5" | 4.8" | 1.7" | 💧 Light watering |
| Mar | 6.5" | 5.6" | 0.9" | 💧 Light watering |
| Apr | 6.5" | 4.1" | 2.4" | 💧 Light watering |
| May | 6.5" | 5.3" | 1.2" | 💧 Light watering |
| Jun | 6.5" | 6.3" | 0.2" | 💧 Light watering |
| Jul | 6.5" | 6.3" | 0.2" | 💧 Light watering |
| Aug | 6.5" | 5.6" | 0.9" | 💧 Light watering |
| Sep | 6.5" | 4.3" | 2.2" | 💧 Light watering |
| Oct | 6.5" | 3.7" | 2.8" | 💧 Light watering |
| Nov | 6.5" | 4.9" | 1.6" | 💧 Light watering |
| Dec | 6.5" | 5.2" | 1.3" | 💧 Light watering |
Water needs are for active growing months only (Feb–Dec in Acadia Parish). 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 Planting Timeline — Acadia Parish, LA
Sweet Corn Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 19 | Feb 19 – Mar 12 |
| Harvest | April 23 | Apr 23 – Jun 4 |
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 · 1-2 times/week
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9a
📆 Growing Season
297 days in Acadia Parish
Growing Tips for Sweet Corn in Acadia Parish
Direct sow Sweet Corn outdoors after February 12 in Acadia Parish when soil has warmed and frost danger has passed.
Sandy soil in Acadia Parish 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 103°F in Acadia Parish, 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
Check more plant combinations with our Companion Planting Checker →
Sweet Corn in Other Locations
Frequently Asked Questions
When should I plant Sweet Corn in Acadia Parish, LA?
Acadia Parish is in Zone 9a with an average last frost of February 12. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.
What planting zone is Acadia Parish, LA?
Acadia Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is February 12 and first fall frost is December 6.
Your Acadia Parish Garden Planner — Free
A 24-page printable planner built for Acadia Parish (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.