When to Plant Garlic in Chatham County, NC
Garlic is a pungent allium planted in fall and harvested the following summer. Hardneck varieties produce edible flower stalks (scapes) and are more cold-hardy.
Chatham County, North Carolina is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 6, giving you a growing season of approximately 223 days.
At an elevation of 1,042 feet, Chatham County receives approximately 48.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Garlic during the growing season. Clay soil retains moisture well for Garlic, but amend with compost to improve drainage and prevent root rot.
Chatham County Soil Profile
Soil Type
Clay Loam
Soil pH
5.5-6.4
Drainage
Well Drained
Plant Planting Risk Windows
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
Garlic Planting Timeline — Chatham County, NC
Garlic Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Fall Sowing | September 25 | Sep 25 – Oct 9 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | — |
| September | Fall Sowing |
| October | Fall Sowing |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
90–240 days
Soil pH
6 – 7.5
USDA Zone
Zone 7b
Growing Season
223 days
Growing Tips for Chatham County
Plant individual cloves pointed end up in fall, 6 weeks before ground freezes. Mulch heavily with straw. Harvest when lower leaves begin to brown but 5-6 green leaves remain.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Garlic in Other Locations
Frequently Asked Questions
When should I plant Garlic in Chatham County, NC?
Chatham County is in Zone 7b with an average last frost of March 28. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.
What planting zone is Chatham County, NC?
Chatham County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 6.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Chatham County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.
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