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When to Plant Snap Peas in Glynn County, GA

Snap peas have edible pods with plump, sweet peas inside, combining the best features of snow peas and garden peas. They are a garden favorite for fresh eating.

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 97ยฐF, so Snap Peas may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Snap Peas will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Snap Peas 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 (193 days to spare)
Start indoors: Dec 16 Transplant: Feb 3 🍅 Harvest: Mar 31 – May 26
Recommended (50%) ✓ Fits season (188 days to spare)
Start indoors: Dec 29 Transplant: Feb 16 🍅 Harvest: Apr 13 – Jun 8
Safe Start (90%) ✓ Fits season (172 days to spare)
Start indoors: Jan 26 Transplant: Mar 16 🍅 Harvest: May 11 – Jul 6

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 Snap Peas's growing requirements.

Soil pH

Your soil pH (4.9โ€“6.2) is more acidic than Snap Peas prefers (6.0โ€“7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Snap Peas.

Organic Matter

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

How to Plant Snap Peas

1"
Planting Depth
4"
Between Plants
18"
Between Rows

Succession Planting Snap Peas

6
successive plantings in your 307-day season

Sow every 6.3 weeks. Last sowing by Oct 04 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Snap Peas

Snap Peas needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Snap Peas Needs Rainfall You Supplement Action
Jan โ€” 4.4" 0" โ„๏ธ Dormant
Feb 3" 3.9" 0" โœ… Rainfall sufficient
Mar 3" 4.6" 0" โœ… Rainfall sufficient
Apr 3" 4.7" 0" โœ… Rainfall sufficient
May 3" 3.9" 0" โœ… Rainfall sufficient
Jun 3" 5.5" 0" โœ… Rainfall sufficient
Jul 3" 5.2" 0" โœ… Rainfall sufficient
Aug 3" 5.8" 0" โœ… Rainfall sufficient
Sep 3" 4.8" 0" โœ… Rainfall sufficient
Oct 3" 3.6" 0" โœ… Rainfall sufficient
Nov 3" 4.2" 0" โœ… Rainfall sufficient
Dec 3" 4.7" 0" โœ… Rainfall sufficient

Water needs are for active growing months only (Febโ€“Dec in Glynn County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Snap Peas 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" โ€” every day above 50ยฐF 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.

Snap Peas needs ~1,422 GDD — county provides 7,007 GDD Excellent fit

Snap Peas Planting Timeline โ€” Glynn County, GA

Snap Peas Planting Calendar

Activity When Date Range
Start Indoors December 29 Dec 29 โ€“ Jan 12
Transplant Outdoors February 16 Feb 16 โ€“ Mar 2
Direct Sow February 9 Feb 9 โ€“ Mar 2
Harvest April 13 Apr 13 โ€“ Jun 8

Plant 1" deep ยท 4" apart ยท Rows 18" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December Start Indoors

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.7"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

55โ€“70 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

307 days in Glynn County

Growing Tips for Snap Peas in Glynn County

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

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

Summer highs in Glynn County reach 97ยฐF โ€” grow Snap Peas as a spring or fall crop. Use shade cloth if planting in summer.

Common pests for Snap Peas in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in early spring as soon as soil can be worked. Provide a trellis 4-6 feet tall. Harvest when pods are plump and snap cleanly when bent.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Snap Peas in Glynn County, GA?

Glynn County is in Zone 9a with an average last frost of February 9. Plan your Snap Peas planting based on this frost date โ€” 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.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” 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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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.