When to plant Sunflower in Ouachita Parish County,
For Ouachita Parish County, gardeners: plant Sunflower February 24 through March 17 once soil reads 50°F.
When to Plant Sunflower in Ouachita Parish, LA
Ouachita Parish, Louisiana gardeners: here's your June plan
If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.
-
Bring in the sunflower
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Coming up in July — start thinking about
- First harvests: sunflower
Sunflower (Helianthus annuus) is a fast-growing North American native annual famous for its towering stems and brilliant yellow heads. It thrives in full sun and heat, producing large, pollen-rich blooms that attract bees, butterflies, and seed-eating birds. Varieties range from 18-inch dwarfs to 12-foot giants and nearly every color except blue.
Ouachita Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.
At an elevation of 340 feet, Ouachita Parish receives approximately 53.7 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Sunflower during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sunflower root diseases.
Ouachita Parish Soil Profile
Soil Type
Loam
Soil pH
6.3-6.8
Drainage
Well Drained
Sunflower 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 Ouachita Parish
How your county's soil matches Sunflower's growing requirements.
Soil pH
Your soil pH (6.3–6.8) is within Sunflower's preferred range (6.0–7.5).
Soil Texture
The loam soil in Ouachita Parish is excellent for Sunflower — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Sunflower.
How to Plant Sunflower
Succession Planting Sunflower
Sow every 8 weeks. Last sowing by Aug 04 to harvest before frost.
Sunflower Water Budget
Monthly Watering Guide for Sunflower
Sunflower needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Sunflower Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5.1" | 0" | ❄️ Dormant |
| Feb | — | 4.9" | 0" | ❄️ Dormant |
| Mar | 2.2" | 4.4" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.9" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Ouachita Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Sunflower 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.
Sunflower Planting Timeline — Ouachita Parish, LA
Sunflower Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 17 | Feb 17 – Mar 3 |
| Transplant Outdoors | February 24 | Feb 24 – Mar 10 |
| Direct Sow | February 24 | Feb 24 – Mar 17 |
| Bloom | May 19 | May 19 – Oct 6 |
Plant 1" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors Transplant Outdoors Direct Sow |
| March | Start Indoors Transplant Outdoors Direct Sow |
| April | — |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
70–100 days
🧪 Soil pH
Needs 6–7.5 · Your soil: ideal
🗺️ USDA Zone
Zone 8b
📆 Growing Season
247 days in Ouachita Parish
Growing Tips for Sunflower in Ouachita Parish
Direct sow Sunflower outdoors after March 10 in Ouachita Parish when soil has warmed and frost danger has passed.
Common pests for Sunflower in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct-sow 1 inch deep after last frost; germination takes 7-14 days at 65-75°F soil. Sunflowers dislike root disturbance so direct sowing is strongly preferred over transplanting. Plant in succession every 2 weeks for extended bloom. Stake tall varieties. Avoid overwatering — they tolerate drought once established. Birds will self-deadhead seed heads; leave them up through fall for wildlife.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Sunflower in Other Locations
Frequently Asked Questions
When should I plant Sunflower in Ouachita Parish, LA?
Ouachita Parish is in Zone 8b with an average last frost of March 10. Plan your Sunflower planting based on this frost date — see the calendar above for exact timing.
What planting zone is Ouachita Parish, LA?
Ouachita Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.
When should I plant Sunflower in Ouachita Parish County, ?
In Ouachita Parish County, , plant Sunflower after the last frost (around March 10) and before the first frost (around November 12). Best results when soil holds above 50°F.
What growing zone is Ouachita Parish County, for Sunflower?
Ouachita Parish County sits in USDA Zone 8b. Sunflower grows reliably in zones 2a through 11b, so it's a good fit here.
Can Sunflower grow in Ouachita Parish County's climate?
Yes — Sunflower grows well in Ouachita Parish County's temperate climate. Ouachita Parish County averages a 247-day frost-free season, with last frost around March 10 and first frost around November 12.
Your Ouachita Parish Garden Planner — Free
A 22-page printable planner built for Ouachita Parish (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.