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When to Plant Leeks in Berkeley County, SC

Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.

Berkeley County, South Carolina is in USDA Zone 8b. The average last spring frost is March 1 and the first fall frost is November 23, giving you a growing season of approximately 267 days.

At an elevation of 441 feet, Berkeley County receives approximately 52.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93ยฐF, providing good warmth for Leeks during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Leeks will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Berkeley County, SC (Zone 8b) Long season
267 days
Last Spring Frost March 1
267 growing days
First Fall Frost November 23

Berkeley County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Leeks Planting Timeline โ€” Berkeley County, SC

Leeks Planting Calendar

Activity When Date Range
Start Indoors January 25 Jan 25 โ€“ Feb 8
Transplant Outdoors March 1 Mar 1 โ€“ Mar 15
Direct Sow February 15 Feb 15 โ€“ Mar 8
Harvest May 31 May 31 โ€“ Aug 16
Fall Sowing September 14 Sep 14 โ€“ Sep 28

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

Moderate โ€” regular watering

๐Ÿ“… Days to Maturity

90โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: N/A

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

267 days in Berkeley County

Growing Tips for Berkeley County

Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Leeks in Berkeley County, SC?

Berkeley County is in Zone 8b with an average last frost of March 1. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Berkeley County, SC?

Berkeley County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 1 and first fall frost is November 23.

๐ŸŒฑ

Plan Your Garden with Confidence

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