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When to Plant Raspberries in Glynn County, GA

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.

Glynn County, Georgia is in USDA Zone 9a. The average last spring frost is February 9 and the first fall frost is December 13, giving you a growing season of approximately 307 days.

At an elevation of 135 feet, Glynn County receives approximately 55.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97Β°F, so Raspberries may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Raspberries will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Raspberries root diseases.

Glynn County, GA (Zone 9a) Year-round
307 days
Last Spring Frost February 9
307 growing days
First Fall Frost December 13

Glynn County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Feb 10
Recommended (50%) ✓ Fits season
Transplant: Feb 23
Safe Start (90%) ✓ Fits season
Transplant: Mar 23

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 Glynn County

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

Soil pH

Your soil pH (4.9–6.2) overlaps with Raspberries's range (5.5–6.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Raspberries.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Raspberries.

How to Plant Raspberries

24"
Between Plants
72"
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 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€” 4.4" 0" ❄️ Dormant
Feb 4.3" 3.9" 0.4" πŸ’§ Light watering
Mar 4.3" 4.6" 0" βœ… Rainfall sufficient
Apr 4.3" 4.7" 0" βœ… Rainfall sufficient
May 4.3" 3.9" 0.4" πŸ’§ Light watering
Jun 4.3" 5.5" 0" βœ… Rainfall sufficient
Jul 4.3" 5.2" 0" βœ… Rainfall sufficient
Aug 4.3" 5.8" 0" βœ… Rainfall sufficient
Sep 4.3" 4.8" 0" βœ… Rainfall sufficient
Oct 4.3" 3.6" 0.7" πŸ’§ Light watering
Nov 4.3" 4.2" 0.1" πŸ’§ Light watering
Dec 4.3" 4.7" 0" βœ… Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Glynn 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 ~12,456 GDD — county provides 7,007 GDD May not mature

Raspberries Planting Timeline β€” Glynn County, GA

Raspberries Planting Calendar

Activity When Date Range
Transplant Outdoors February 23 Feb 23 – Mar 9

Β· 24" apart Β· Rows 72" apart

Month-by-Month Timeline

MonthActivities
January β€”
February Transplant Outdoors
March Transplant Outdoors
April β€”
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 9a

πŸ“† Growing Season

307 days in Glynn County

Growing Tips for Raspberries in Glynn County

Direct sow Raspberries outdoors after February 09 in Glynn County when soil has warmed and frost danger has passed.

Sandy soil in Glynn County dries quickly β€” mulch Raspberries 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 Glynn County, provide afternoon shade for Raspberries and water deeply in the morning.

Your 308.0-day growing season in Glynn 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 Glynn County, GA?

Glynn County is in Zone 9a with an average last frost of February 9. Plan your Raspberries planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Glynn County, GA?

Glynn County, Georgia is in USDA Hardiness Zone 9a. The average last spring frost is February 9 and first fall frost is December 13.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Glynn County gardeners in Zone 9a organize planting dates, track what's growing, and never miss a planting window.

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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 Glynn County, GA. Local conditions may vary. Last updated: April 2026.