When to plant Garlic Chives in Tama County County,
Plant Garlic Chives in Tama County County during the brief May 5–May 19 window. With 163 frost-free days, fall plantings can't mature before October 8.
When to Plant Garlic Chives in Tama County, IA
Your June gardening checklist
Your Tama County, Iowa garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.
Get ahead of July
- First harvests: garlic chives
Garlic chives are a perennial herb with flat leaves that have a mild garlic flavor. They produce attractive white flower clusters and are used in Asian cooking.
Tama County, Iowa is in USDA Zone 5a. The average last spring frost is April 28 and the first fall frost is October 8, giving you a growing season of approximately 163 days.
At an elevation of 1,268 feet, Tama County receives approximately 38.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Garlic Chives during the growing season.
Tama County Soil Profile
Soil Type
Silt Loam
Soil pH
5.8-6.9
Drainage
Well Drained
Garlic Chives 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.
Soil Compatibility in Tama County
How your county's soil matches Garlic Chives's growing requirements.
Soil pH
Your soil pH (5.8–6.9) overlaps with Garlic Chives's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Tama County is excellent for Garlic Chives — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Garlic Chives.
Organic Matter
Organic matter is excellent (5.1%) — Garlic Chives will thrive.
How to Plant Garlic Chives
Succession Planting Garlic Chives
Sow every 6.9 weeks. Last sowing by Jul 10 to harvest before frost.
Garlic Chives Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Garlic Chives
Garlic Chives needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Garlic Chives Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.4" | 0" | ❄️ Dormant |
| Feb | — | 1.7" | 0" | ❄️ Dormant |
| Mar | — | 2.9" | 0" | ❄️ Dormant |
| Apr | 2.2" | 3.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5.1" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 3.9" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 2.6" | 0" | ✅ Rainfall sufficient |
| Nov | — | 3" | 0" | ❄️ Dormant |
| Dec | — | 2.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Tama County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Garlic Chives Heat Requirements (GDD)
What are Growing Degree Days (GDD)?
Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.
Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.
Garlic Chives Planting Timeline — Tama County, IA
Garlic Chives Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 5 | May 5 – May 19 |
| Harvest | July 7 | Jul 7 – Sep 15 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
163 days in Tama County
Growing Tips for Garlic Chives in Tama County
Direct sow Garlic Chives outdoors after April 28 in Tama County when soil has warmed and frost danger has passed.
Common pests for Garlic Chives in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
Start from seed or divisions. Cut flower stalks before seeds set to prevent aggressive self-seeding. Both leaves and flower buds are edible and flavorful.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Garlic Chives in Other Locations
Frequently Asked Questions
When should I plant Garlic Chives in Tama County, IA?
Tama County is in Zone 5a with an average last frost of April 28. Plan your Garlic Chives planting based on this frost date — see the calendar above for exact timing.
What planting zone is Tama County, IA?
Tama County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 28 and first fall frost is October 8.
When should I plant Garlic Chives in Tama County County, ?
In Tama County County, , plant Garlic Chives after the last frost (around April 28) and before the first frost (around October 8). Best results when soil holds above 50°F.
What growing zone is Tama County County, for Garlic Chives?
Tama County County sits in USDA Zone 5a. Garlic Chives grows reliably in zones 3a through 10b, so it's a good fit here.
Can Garlic Chives grow in Tama County County's climate?
Yes — Garlic Chives grows well in Tama County County's temperate climate. Tama County County averages a 163-day frost-free season, with last frost around April 28 and first frost around October 8.
Your Tama County Garden Planner — Free
A 22-page printable planner built for Tama 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.