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When to Plant Bok Choy in Glynn County, GA

Bok choy is a Chinese cabbage variety with crisp white stalks and dark green leaves. It is a fast-growing cool-season crop ideal for stir-fries and soups.

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 Bok Choy may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Bok Choy will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bok Choy 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 (235 days to spare)
Start indoors: Dec 30 Transplant: Jan 27 🍅 Harvest: Mar 10 – Apr 14
Recommended (50%) ✓ Fits season (230 days to spare)
Start indoors: Jan 12 Transplant: Feb 9 🍅 Harvest: Mar 23 – Apr 27
Safe Start (90%) ✓ Fits season (214 days to spare)
Start indoors: Feb 9 Transplant: Mar 9 🍅 Harvest: Apr 20 – May 25

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.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.8″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 811 gal / 100 sq ft
Bok Choy needs ~1,138 GDD — county provides 7,007 GDD Excellent fit

Bok Choy Planting Timeline โ€” Glynn County, GA

Bok Choy Planting Calendar

Activity When Date Range
Start Indoors January 12 Jan 12 โ€“ Jan 26
Transplant Outdoors February 9 Feb 9 โ€“ Feb 23
Direct Sow January 19 Jan 19 โ€“ Feb 9
Fall Sowing October 18 Oct 18 โ€“ Nov 1
Harvest March 23 Mar 23 โ€“ Apr 27

Plant 1" deep ยท 15" apart ยท Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

40โ€“60 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 9a

Growing Season

307 days

Growing Tips for Glynn County

Direct sow in spring or fall for best results. Keep soil consistently moist. Harvest whole heads or cut outer leaves for a cut-and-come-again approach.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Bok Choy in Glynn County, GA?

Glynn County is in Zone 9a with an average last frost of February 9. Plan your Bok Choy 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.

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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.