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When to Plant Sunflower in Leflore County, MS

Sunflowers are tall, cheerful annuals grown for their edible seeds and as pollinator magnets. They come in sizes from 2-foot dwarfs to 12-foot giants.

Leflore County, Mississippi is in USDA Zone 8a. The average last spring frost is March 8 and the first fall frost is November 15, giving you a growing season of approximately 252 days.

At an elevation of 115 feet, Leflore County receives approximately 58.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94Β°F, providing good warmth for Sunflower during the growing season. Clay soil retains moisture well for Sunflower, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sunflower root diseases.

Leflore County, MS (Zone 8a) Long season
252 days
Last Spring Frost March 8
252 growing days
First Fall Frost November 15

Leflore County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.4

Drainage

Well Drained

Monthly Watering Guide for Sunflower

Sunflower needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Sunflower Needs Rainfall You Supplement Action
Jan β€” 4.3" 0" ❄️ Dormant
Feb β€” 4.7" 0" ❄️ Dormant
Mar 4.3" 6" 0" βœ… Rainfall sufficient
Apr 4.3" 5" 0" βœ… Rainfall sufficient
May 4.3" 4.7" 0" βœ… Rainfall sufficient
Jun 4.3" 5.6" 0" βœ… Rainfall sufficient
Jul 4.3" 5.8" 0" βœ… Rainfall sufficient
Aug 4.3" 5.2" 0" βœ… Rainfall sufficient
Sep 4.3" 4.8" 0" βœ… Rainfall sufficient
Oct 4.3" 3.8" 0.5" πŸ’§ Light watering
Nov 4.3" 4.2" 0.1" πŸ’§ Light watering
Dec β€” 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Leflore County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Sunflower Planting Timeline β€” Leflore County, MS

Sunflower Planting Calendar

Activity When Date Range
Start Indoors January 18 Jan 18 – Feb 1
Transplant Outdoors March 22 Mar 22 – Apr 5
Direct Sow March 15 Mar 15 – Apr 5
Harvest May 31 May 31 – Jul 19

Plant 1" deep Β· 18" apart Β· Rows 30" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August β€”
September β€”
October β€”
November β€”
December β€”

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Low β€” drought tolerant

πŸ“… Days to Maturity

70–100 days

πŸ§ͺ Soil pH

Needs 6–7.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

252 days in Leflore County

Growing Tips for Leflore County

Direct sow after last frost. Stake tall varieties in windy areas. Harvest seed heads when the back turns brown and seeds are plump. Dry heads upside down.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sunflower in Leflore County, MS?

Leflore County is in Zone 8a with an average last frost of March 8. Plan your Sunflower planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Leflore County, MS?

Leflore County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 8 and first fall frost is November 15.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Leflore County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Leflore County, MS. Local conditions may vary. Last updated: April 2026.