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When to Plant Leeks in Watauga County, NC

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.

Watauga County, North Carolina is in USDA Zone 6a. The average last spring frost is April 15 and the first fall frost is October 21, giving you a growing season of approximately 189 days.

At an elevation of 1,037 feet, Watauga County receives approximately 53.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89ยฐF, providing good warmth for Leeks during the growing season. Clay soil retains moisture well for Leeks, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.

Watauga County, NC (Zone 6a) Moderate season
189 days
Last Spring Frost April 15
189 growing days
First Fall Frost October 21

Watauga County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Monthly Watering Guide for Leeks

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

Month Leeks Needs Rainfall You Supplement Action
Jan โ€” 4.9" 0" โ„๏ธ Dormant
Feb โ€” 4.8" 0" โ„๏ธ Dormant
Mar โ€” 5" 0" โ„๏ธ Dormant
Apr 4.3" 3.6" 0.7" ๐Ÿ’ง Light watering
May 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Jun 4.3" 4.2" 0.1" ๐Ÿ’ง Light watering
Jul 4.3" 5.2" 0" โœ… Rainfall sufficient
Aug 4.3" 5.5" 0" โœ… Rainfall sufficient
Sep 4.3" 4.5" 0" โœ… Rainfall sufficient
Oct 4.3" 3.1" 1.2" ๐Ÿ’ง Light watering
Nov โ€” 4.2" 0" โ„๏ธ Dormant
Dec โ€” 4.3" 0" โ„๏ธ Dormant

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

Leeks Planting Timeline โ€” Watauga County, NC

Leeks Planting Calendar

Activity When Date Range
Start Indoors March 11 Mar 11 โ€“ Mar 25
Transplant Outdoors April 15 Apr 15 โ€“ Apr 29
Direct Sow April 1 Apr 1 โ€“ Apr 22
Harvest July 15 Jul 15 โ€“ Sep 30
Fall Sowing August 12 Aug 12 โ€“ Aug 26

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Transplant Outdoors Direct Sow
May โ€”
June โ€”
July Harvest
August Fall Sowing Harvest
September Harvest
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 6a

๐Ÿ“† Growing Season

189 days in Watauga County

Growing Tips for Watauga 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 Watauga County, NC?

Watauga County is in Zone 6a with an average last frost of April 15. Plan your Leeks planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Watauga County, NC?

Watauga County, North Carolina is in USDA Hardiness Zone 6a. The average last spring frost is April 15 and first fall frost is October 21.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Watauga County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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 Watauga County, NC. Local conditions may vary. Last updated: April 2026.