When to plant Garlic in Clay County, IA
Clay County sits in USDA Zone 5a. Plant Garlic between mid-spring (after last frost on April 24) and late spring. A second sowing from August 30 to September 13 extends the harvest into fall.
When to Plant Garlic in Clay County, IA
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.
Clay County, Iowa is in USDA Zone 5a. The average last spring frost is April 24 and the first fall frost is October 11, giving you a growing season of approximately 170 days.
At an elevation of 984 feet, Clay County receives approximately 34.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Garlic to ensure they mature before fall.
Clay County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Garlic Planting Timeline — Clay County, IA
Garlic Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Harvest | November 29 | Nov 29 – Feb 14 |
| Fall Sowing | August 30 | Aug 30 – Sep 13 |
Plant 1" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Harvest |
| February | Harvest |
| March | — |
| April | — |
| May | — |
| June | — |
| July | — |
| August | Fall Sowing |
| September | Fall Sowing |
| October | — |
| November | Harvest |
| December | Harvest |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
90–240 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
170 days in Clay County
Growing Tips for Clay 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
Check more plant combinations with our Companion Planting Checker →
Garlic in Other Locations
Frequently Asked Questions
When should I plant Garlic in Clay County, IA?
Clay County is in Zone 5a with an average last frost of April 24. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.
What planting zone is Clay County, IA?
Clay County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 24 and first fall frost is October 11.
When should I plant Garlic in Clay County, IA?
In Clay County, IA, plant Garlic after the last frost (around April 24) and before the first frost (around October 11). Best results when soil holds above 50°F.
What growing zone is Clay County, IA for Garlic?
Clay County sits in USDA Zone 5a. Garlic grows reliably in zones 3a through 9b, so it's a good fit here.
Can Garlic grow in Clay County's climate?
Yes — Garlic grows well in Clay County's temperate climate. Clay County averages a 170-day frost-free season, with last frost around April 24 and first frost around October 11.
Your Clay County Garden Planner — Free
A 22-page printable planner built for Clay County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.