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When to Plant Sunflower in Fisher County, TX

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.

Fisher County, Texas is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 15, giving you a growing season of approximately 235 days.

At an elevation of 1,474 feet, Fisher County receives approximately 59.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97ยฐF, so Sunflower may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Sunflower will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sunflower root diseases.

Fisher County, TX (Zone 7b) Long season
235 days
Last Spring Frost March 25
235 growing days
First Fall Frost November 15

Fisher County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.1-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (100 days to spare)
Start indoors: Jan 29 Transplant: Apr 2 🍅 Harvest: Jun 11 – Jul 30
Recommended (50%) ✓ Fits season (102 days to spare)
Start indoors: Feb 4 Transplant: Apr 8 🍅 Harvest: Jun 17 – Aug 5
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Feb 25 Transplant: Apr 29 🍅 Harvest: Jul 8 – Aug 26

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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Sunflower needs ~1,934 GDD — county provides 5,346 GDD Excellent fit

Sunflower Planting Timeline โ€” Fisher County, TX

Sunflower Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 โ€“ Feb 18
Transplant Outdoors April 8 Apr 8 โ€“ Apr 22
Direct Sow April 1 Apr 1 โ€“ Apr 22
Harvest June 17 Jun 17 โ€“ Aug 5

Plant 1" deep ยท 18" apart ยท Rows 30" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

70โ€“100 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7b

Growing Season

235 days

Growing Tips for Fisher 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Sunflower in Fisher County, TX?

Fisher County is in Zone 7b with an average last frost of March 25. Plan your Sunflower planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fisher County, TX?

Fisher County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Fisher County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Fisher County, TX. Local conditions may vary. Last updated: April 2026.