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When to Plant Raspberries in Lamar County, AL

Raspberries are beloved bramble fruits producing sweet, delicate berries in red, golden, black, and purple varieties. They spread by underground runners and are very productive.

Lamar County, Alabama is in USDA Zone 7a. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.

At an elevation of 69 feet, Lamar County receives approximately 62 inches of rainfall annually with predominantly clay loam soil. Summer highs average 88Β°F, providing good warmth for Raspberries during the growing season. Clay soil retains moisture well for Raspberries, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Raspberries root diseases.

Lamar County, AL (Zone 7a) Long season
228 days
Last Spring Frost March 23
228 growing days
First Fall Frost November 6

Lamar County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Apr 4
Recommended (50%) ✓ Fits season
Transplant: Apr 13
Safe Start (90%) ✓ Fits season
Transplant: May 4

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 Lamar County

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

Soil pH

Your soil pH (5.3–6.7) overlaps with Raspberries's range (5.5–6.5), though not a perfect match.

Soil Texture

The clay loam soil in Lamar County is excellent for Raspberries β€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Raspberries

24"
Between Plants
72"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Raspberries

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

Month Raspberries Needs Rainfall You Supplement Action
Jan β€” 4.7" 0" ❄️ Dormant
Feb β€” 4.6" 0" ❄️ Dormant
Mar 4.3" 6.8" 0" βœ… Rainfall sufficient
Apr 4.3" 4.2" 0.1" πŸ’§ Light watering
May 4.3" 5.3" 0" βœ… Rainfall sufficient
Jun 4.3" 5.9" 0" βœ… Rainfall sufficient
Jul 4.3" 5.8" 0" βœ… Rainfall sufficient
Aug 4.3" 6.8" 0" βœ… Rainfall sufficient
Sep 4.3" 5" 0" βœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" πŸ’§ Light watering
Nov 4.3" 4.6" 0" βœ… Rainfall sufficient
Dec β€” 4.4" 0" ❄️ Dormant

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

Raspberries 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.

Raspberries needs ~8,760 GDD — county provides 3,648 GDD May not mature

Raspberries Planting Timeline β€” Lamar County, AL

Raspberries Planting Calendar

Activity When Date Range
Transplant Outdoors April 13 Apr 13 – Apr 27

Β· 24" apart Β· Rows 72" 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

1"/week Β· Natural rainfall sufficient

πŸ“… Days to Maturity

365–730 days

πŸ§ͺ Soil pH

Needs 5.5–6.5 Β· Your soil: acceptable

πŸ—ΊοΈ USDA Zone

Zone 7a

πŸ“† Growing Season

228 days in Lamar County

Growing Tips for Raspberries in Lamar County

Direct sow Raspberries outdoors after March 23 in Lamar County when soil has warmed and frost danger has passed.

With Lamar County's clay soil (28% clay), work in 3-4 inches of compost before planting Raspberries. Avoid tilling when soil is wet to prevent compaction.

Your 228.0-day growing season in Lamar County is tight for Raspberries (365.0-730.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Provide a trellis for support. Prune summer-bearing types by removing spent canes after harvest. For ever-bearing types, mow all canes in late winter for a single fall crop.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Raspberries in Lamar County, AL?

Lamar County is in Zone 7a with an average last frost of March 23. Plan your Raspberries planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Lamar County, AL?

Lamar County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 23 and first fall frost is November 6.

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Plan Your Garden with Confidence

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