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When to Plant Asparagus in Blount County, AL

Asparagus is a long-lived perennial vegetable that produces tender spears each spring for 15-20 years once established. It requires patience but rewards with reliable harvests.

Blount County, Alabama is in USDA Zone 7a. The average last spring frost is March 31 and the first fall frost is October 31, giving you a growing season of approximately 214 days.

At an elevation of 56 feet, Blount County receives approximately 54.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88Β°F, providing good warmth for Asparagus during the growing season. Clay soil retains moisture well for Asparagus, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Asparagus root diseases.

Blount County, AL (Zone 7a) Long season
214 days
Last Spring Frost March 31
214 growing days
First Fall Frost October 31

Blount County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.6

Drainage

Well Drained

Monthly Watering Guide for Asparagus

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

Month Asparagus Needs Rainfall You Supplement Action
Jan β€” 3.9" 0" ❄️ Dormant
Feb β€” 3.7" 0" ❄️ Dormant
Mar 4.3" 5.2" 0" βœ… Rainfall sufficient
Apr 4.3" 3.6" 0.7" πŸ’§ Light watering
May 4.3" 4.8" 0" βœ… Rainfall sufficient
Jun 4.3" 5.4" 0" βœ… Rainfall sufficient
Jul 4.3" 5.5" 0" βœ… Rainfall sufficient
Aug 4.3" 5.8" 0" βœ… Rainfall sufficient
Sep 4.3" 4" 0.3" πŸ’§ Light watering
Oct 4.3" 3.7" 0.6" πŸ’§ Light watering
Nov β€” 4.5" 0" ❄️ Dormant
Dec β€” 4.7" 0" ❄️ Dormant

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

Asparagus Planting Timeline β€” Blount County, AL

Asparagus Planting Calendar

Activity When Date Range
Transplant Outdoors April 14 Apr 14 – Apr 28

Plant 1" deep Β· 30" apart Β· Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

730–1095 days

πŸ§ͺ Soil pH

Needs 6.5–7.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7a

πŸ“† Growing Season

214 days in Blount County

Growing Tips for Blount County

Plant crowns in deep trenches with compost. Do not harvest spears for the first two years to allow root establishment. Mulch heavily to suppress weeds and retain moisture.

Companion Planting

Good Companions

Avoid Planting Near

  • Garlic
  • Onion

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Asparagus in Blount County, AL?

Blount County is in Zone 7a with an average last frost of March 31. Plan your Asparagus planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Blount County, AL?

Blount County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 31 and first fall frost is October 31.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Blount County gardeners in Zone 7a 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 Blount County, AL. Local conditions may vary. Last updated: April 2026.