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When to Plant Blueberries in Shelby County, AL

Blueberries are long-lived shrubs producing sweet, antioxidant-rich berries. They require acidic soil and are attractive ornamental plants with fall color and spring flowers.

Shelby County, Alabama is in USDA Zone 7b. The average last spring frost is March 26 and the first fall frost is November 5, giving you a growing season of approximately 224 days.

At an elevation of 324 feet, Shelby County receives approximately 48.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Blueberries during the growing season. Clay soil retains moisture well for Blueberries, but amend with compost to improve drainage and prevent root rot.

Shelby County, AL (Zone 7b) Long season
224 days
Last Spring Frost March 26
224 growing days
First Fall Frost November 5

Shelby County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 9
Recommended (50%) ✓ Fits season
Transplant: Apr 16
Safe Start (90%) ✓ Fits season
Transplant: May 3

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
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 203 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Blueberries needs ~15,969 GDD — county provides 3,920 GDD May not mature

Blueberries Planting Timeline โ€” Shelby County, AL

Blueberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 16 Apr 16 โ€“ Apr 30

ยท 48" apart ยท Rows 72" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June โ€”
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

730โ€“1095 days

Soil pH

4.5 โ€“ 5.5

USDA Zone

Zone 7b

Growing Season

224 days

Growing Tips for Shelby County

Plant at least two varieties for cross-pollination. Acidify soil with sulfur or pine needle mulch to maintain pH 4.5-5.5. Protect ripening berries from birds with netting.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Blueberries in Shelby County, AL?

Shelby County is in Zone 7b with an average last frost of March 26. Plan your Blueberries planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Shelby County, AL?

Shelby County, Alabama is in USDA Hardiness Zone 7b. The average last spring frost is March 26 and first fall frost is November 5.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Shelby 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 Shelby County, AL. Local conditions may vary. Last updated: April 2026.