Blog

When to Plant Mulberries in Mobile County, AL

Mulberries are fast-growing, long-lived trees that produce abundant sweet-tart berries over an extended harvest period. The berries resemble elongated blackberries.

Mobile County, Alabama is in USDA Zone 8b. The average last spring frost is March 3 and the first fall frost is November 24, giving you a growing season of approximately 266 days.

At an elevation of 101 feet, Mobile County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97Β°F, so Mulberries may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Mulberries will need more frequent watering and organic matter to retain nutrients.

Mobile County, AL (Zone 8b) Long season
266 days
Last Spring Frost March 3
266 growing days
First Fall Frost November 24

Mobile County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Mar 12
Recommended (50%) ✓ Fits season
Transplant: Mar 24
Safe Start (90%) ✓ Fits season
Transplant: Apr 10

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 Mobile County

How your county's soil matches Mulberries's growing requirements.

Soil pH

Your soil pH (4.8–6.1) is more acidic than Mulberries prefers (5.5–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Mobile County warms quickly in spring but drains fast. Mulberries will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Mulberries.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Mulberries.

How to Plant Mulberries

120"
Between Plants
144"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Mulberries

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

Month Mulberries Needs Rainfall You Supplement Action
Jan β€” 3.7" 0" ❄️ Dormant
Feb β€” 3.5" 0" ❄️ Dormant
Mar 4.3" 4.9" 0" βœ… Rainfall sufficient
Apr 4.3" 3.7" 0.6" πŸ’§ Light watering
May 4.3" 3.5" 0.8" πŸ’§ Light watering
Jun 4.3" 4" 0.3" πŸ’§ Light watering
Jul 4.3" 5.5" 0" βœ… Rainfall sufficient
Aug 4.3" 4.2" 0.1" πŸ’§ Light watering
Sep 4.3" 3.6" 0.7" πŸ’§ Light watering
Oct 4.3" 3.5" 0.8" πŸ’§ Light watering
Nov 4.3" 4.3" 0" βœ… Rainfall sufficient
Dec β€” 4" 0" ❄️ Dormant

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

Mulberries 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" β€” every day above 50Β°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.

Mulberries needs ~29,063 GDD — county provides 6,051 GDD May not mature

Mulberries Planting Timeline β€” Mobile County, AL

Mulberries Planting Calendar

Activity When Date Range
Transplant Outdoors March 24 Mar 24 – Apr 7

Β· 120" apart Β· Rows 144" apart

Month-by-Month Timeline

MonthActivities
January β€”
February β€”
March Transplant Outdoors
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

1"/week Β· Natural rainfall sufficient

πŸ“… Days to Maturity

730–1825 days

πŸ§ͺ Soil pH

Needs 5.5–7 Β· Your soil: too_acidic

πŸ—ΊοΈ USDA Zone

Zone 8b

πŸ“† Growing Season

266 days in Mobile County

Growing Tips for Mulberries in Mobile County

Direct sow Mulberries outdoors after March 03 in Mobile County when soil has warmed and frost danger has passed.

Sandy soil in Mobile County dries quickly β€” mulch Mulberries with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97Β°F in Mobile County, provide afternoon shade for Mulberries and water deeply in the morning.

Your 266.0-day growing season in Mobile County is tight for Mulberries (730.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant away from driveways and patios as fallen berries stain. Minimal pruning is needed. Harvest by shaking branches over a tarp. Birds love mulberries so plant extra.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mulberries in Mobile County, AL?

Mobile County is in Zone 8b with an average last frost of March 3. Plan your Mulberries planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Mobile County, AL?

Mobile County, Alabama is in USDA Hardiness Zone 8b. The average last spring frost is March 3 and first fall frost is November 24.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Mobile County gardeners in Zone 8b 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 Mobile County, AL. Local conditions may vary. Last updated: April 2026.