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When to plant Garlic in Green County, KY

In Green County, plant Garlic in spring between mid-spring and late spring, once soil temps hold above 50°F. Green County's last frost averages April 11, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between September 14 and September 28 — roughly 90–240 days before the first frost on October 26.

When to Plant Garlic in Green County, KY

Garlic
Green County, Kentucky Zone 7a June

June in Green County, Kentucky — your action list

Your Green County, Kentucky garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost April 11
Avg. first frost October 26
Soil temp (4") 67°F
Watering Low
Pest pressure High
Daylight 14.6 hrs

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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.

Green County, Kentucky is in USDA Zone 7a. The average last spring frost is April 11 and the first fall frost is October 26, giving you a growing season of approximately 198 days.

At an elevation of 3,262 feet, Green County receives approximately 50.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Garlic during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Garlic root diseases.

Green County, KY (Zone 7a) Moderate season
198 days
Last Spring Frost April 11
198 growing days
First Fall Frost October 26

Green County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Garlic Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 5 🍅 Harvest: Jul 5 – Nov 15
Recommended (50%) ✗ May not fit
Transplant: Apr 11 🍅 Harvest: Jul 11 – Nov 21
Safe Start (90%) ✗ May not fit
Transplant: Apr 27 🍅 Harvest: Jul 27 – Dec 7

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 Green 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 silt loam soil in Green County is excellent for Garlic — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Garlic.

How to Plant Garlic

1"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 6 weeks before your first frost date for a fall harvest.

Garlic Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.8" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 5.5" 0" ❄️ Dormant
Apr 2.2" 3.3" 0" ✅ Rainfall sufficient
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 4.7" 0" ✅ Rainfall sufficient
Aug 2.2" 5.3" 0" ✅ Rainfall sufficient
Sep 2.2" 3.8" 0" ✅ Rainfall sufficient
Oct 2.2" 3.5" 0" ✅ Rainfall sufficient
Nov 3.8" 0" ❄️ Dormant
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Green 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 needs ~3,011 GDD — county provides 3,613 GDD Good fit

Garlic Planting Timeline — Green County, KY

Garlic Planting Calendar

Activity When Date Range
Harvest December 14 Dec 14 – Apr 26
Fall Sowing September 14 Sep 14 – Sep 28

Plant 1" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Harvest
February Harvest
March Harvest
April Harvest
May
June
July
August
September Fall Sowing
October
November
December Harvest

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 7a

📆 Growing Season

198 days in Green County

Growing Tips for Garlic in Green County

Direct sow Garlic outdoors after April 11 in Green County when soil has warmed and frost danger has passed.

Your 198.0-day growing season in Green 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

  • Peas
  • Green Beans
  • Asparagus

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Garlic in Green County, KY?

Green County is in Zone 7a with an average last frost of April 11. Plan your Garlic planting based on this frost date — see the calendar above for exact timing.

What planting zone is Green County, KY?

Green County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 11 and first fall frost is October 26.

When should I plant Garlic in Green County, KY?

In Green County, KY, plant Garlic after the last frost (around April 11) and before the first frost (around October 26). Best results when soil holds above 50°F.

What growing zone is Green County, KY for Garlic?

Green County sits in USDA Zone 7a. Garlic grows reliably in zones 3a through 9b, so it's a good fit here.

Can Garlic grow in Green County's climate?

Yes — Garlic grows well in Green County's temperate climate. Green County averages a 198-day frost-free season, with last frost around April 11 and first frost around October 26.

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Your Green County Garden Planner — Free

A 22-page printable planner built for Green County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Green County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

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