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When to Plant Garlic in Cibola County, NM

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.

Cibola County, New Mexico is in USDA Zone 6a. The average last spring frost is May 23 and the first fall frost is October 2, giving you a growing season of approximately 132 days.

At an elevation of 4,342 feet, Cibola County receives approximately 15.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 88ยฐF, providing good warmth for Garlic during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Garlic will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Garlic successfully. Mulch heavily to conserve soil moisture.

Cibola County, NM (Zone 6a) Short season
132 days
Last Spring Frost May 23
132 growing days
First Fall Frost October 2

Cibola County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.1-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 13 🍅 Harvest: Aug 12 – Nov 25
Recommended (50%) ✗ May not fit
Transplant: May 23 🍅 Harvest: Aug 22 – Dec 5
Safe Start (90%) ✗ May not fit
Transplant: Jun 10 🍅 Harvest: Sep 9 – Dec 23

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 Cibola County

How your county's soil matches Garlic's growing requirements.

Soil pH

Your soil pH (7.1โ€“8.6) is more alkaline than Garlic prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Cibola County warms quickly in spring but drains fast. Garlic will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (0.7%). Add 2-3 inches of compost before planting 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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 23 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” 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 โ€” 1.1" 0" โ„๏ธ Dormant
Feb โ€” 1" 0" โ„๏ธ Dormant
Mar โ€” 0.8" 0" โ„๏ธ Dormant
Apr โ€” 0.6" 0" โ„๏ธ Dormant
May 2.2" 0.4" 1.8" ๐Ÿšฟ Regular watering
Jun 2.2" 0.5" 1.7" ๐Ÿšฟ Regular watering
Jul 2.2" 2.2" 0" โœ… Rainfall sufficient
Aug 2.2" 3.4" 0" โœ… Rainfall sufficient
Sep 2.2" 2" 0.2" ๐Ÿ’ง Light watering
Oct 2.2" 1.4" 0.8" ๐Ÿ’ง Light watering
Nov โ€” 0.9" 0" โ„๏ธ Dormant
Dec โ€” 1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Cibola County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,640 GDD — county provides 2,112 GDD May not mature

Garlic Planting Timeline โ€” Cibola County, NM

Garlic Planting Calendar

Activity When Date Range
Fall Sowing August 21 Aug 21 โ€“ Sep 4

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May โ€”
June โ€”
July โ€”
August Fall Sowing
September Fall Sowing
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

90โ€“240 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 6a

๐Ÿ“† Growing Season

132 days in Cibola County

Growing Tips for Garlic in Cibola County

Direct sow Garlic outdoors after May 23 in Cibola County when soil has warmed and frost danger has passed.

Sandy soil in Cibola County dries quickly โ€” mulch Garlic with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Your 132.0-day growing season in Cibola 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 Cibola County, NM?

Cibola County is in Zone 6a with an average last frost of May 23. Plan your Garlic planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Cibola County, NM?

Cibola County, New Mexico is in USDA Hardiness Zone 6a. The average last spring frost is May 23 and first fall frost is October 2.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Cibola County gardeners in Zone 6a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

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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 Cibola County, NM. Local conditions may vary. Last updated: April 2026.