When to Plant Garlic in Coahoma County, MS
Your May gardening checklist
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Coahoma County, Mississippi.
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.
Coahoma County, Mississippi is in USDA Zone 8b. The average last spring frost is March 16 and the first fall frost is November 11, giving you a growing season of approximately 240 days.
At an elevation of 490 feet, Coahoma County receives approximately 54.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Garlic may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Garlic, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Garlic root diseases.
Coahoma County Soil Profile
Soil Type
Clay Loam
Soil pH
5.3-6.5
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.
Soil Compatibility in Coahoma County
How your county's soil matches Garlic's growing requirements.
Soil pH
Your soil pH (5.3–6.5) is more acidic than Garlic prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
The clay loam soil in Coahoma County is excellent for Garlic — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Garlic.
How to Plant Garlic
Fall planting: Sow 6 weeks before your first frost date for a fall harvest.
Plant Water Budget
Monthly Watering Guide for Garlic
Garlic 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 Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.1" | 0" | ❄️ Dormant |
| Feb | — | 3.8" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.5" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.3" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 6.1" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 4.8" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.6" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Coahoma County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Garlic 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 Planting Timeline — Coahoma County, MS
Garlic Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Fall Sowing | September 30 | Sep 30 – Oct 14 |
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
0.5"/week · Natural rainfall sufficient
📅 Days to Maturity
90–240 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 8b
📆 Growing Season
240 days in Coahoma County
Growing Tips for Garlic in Coahoma County
Direct sow Garlic outdoors after March 16 in Coahoma County when soil has warmed and frost danger has passed.
With Coahoma County's clay soil (26% clay), work in 3-4 inches of compost before planting Garlic. Avoid tilling when soil is wet to prevent compaction.
With summer highs reaching 96°F in Coahoma County, provide afternoon shade for Garlic and water deeply in the morning.
Your 240.0-day growing season in Coahoma County is tight for Garlic (90.0-240.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Garlic in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
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 Coahoma County, MS?
Coahoma County is in Zone 8b with an average last frost of March 16. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.
What planting zone is Coahoma County, MS?
Coahoma County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 16 and first fall frost is November 11.
Your Coahoma County Garden Planner — Free
A 24-page printable planner built for Coahoma County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.