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When to Plant Chives in Harding County, NM

Chives are a hardy perennial herb with a mild onion flavor and attractive purple pom-pom flowers. They are one of the easiest herbs to grow and maintain.

Harding County, New Mexico is in USDA Zone 5b. The average last spring frost is May 2 and the first fall frost is October 8, giving you a growing season of approximately 159 days.

At an elevation of 6,903 feet, Harding County receives approximately 13 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 84ยฐF, so choose short-season varieties of Chives to ensure they mature before fall. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Chives will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Chives successfully. Mulch heavily to conserve soil moisture.

Harding County, NM (Zone 5b) Moderate season
159 days
Last Spring Frost May 2
159 growing days
First Fall Frost October 8

Harding County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (18 days to spare)
Transplant: May 5 🍅 Harvest: Jul 7 – Sep 15
Recommended (50%) ✓ Fits season (19 days to spare)
Transplant: May 9 🍅 Harvest: Jul 11 – Sep 19
Safe Start (90%) ✓ Fits season (12 days to spare)
Transplant: May 26 🍅 Harvest: Jul 28 – Oct 6

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 Harding County

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

Soil pH

Your soil pH (7.2โ€“8.8) is more alkaline than Chives prefers (6.0โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Chives.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Chives.

How to Plant Chives

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Chives

3
successive plantings in your 159-day season

Sow every 6.9 weeks. Last sowing by Jul 10 to harvest before frost.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
0.3″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 300 gal / 100 sq ft
Drought risk

Water stress score is 10/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Chives

Chives needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Chives Needs Rainfall You Supplement Action
Jan โ€” 0.9" 0" โ„๏ธ Dormant
Feb โ€” 0.8" 0" โ„๏ธ Dormant
Mar โ€” 0.7" 0" โ„๏ธ Dormant
Apr โ€” 0.4" 0" โ„๏ธ Dormant
May 1.7" 0.3" 1.4" ๐Ÿšฟ Regular watering
Jun 1.7" 0.5" 1.2" ๐Ÿšฟ Regular watering
Jul 1.7" 2.2" 0" โœ… Rainfall sufficient
Aug 1.7" 2.7" 0" โœ… Rainfall sufficient
Sep 1.7" 1.8" 0" โœ… Rainfall sufficient
Oct 1.7" 1.3" 0.4" ๐Ÿ’ง Light watering
Nov โ€” 0.6" 0" โ„๏ธ Dormant
Dec โ€” 0.9" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Harding County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

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" 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.

Chives needs ~975 GDD — county provides 2,067 GDD Excellent fit

Chives Planting Timeline โ€” Harding County, NM

Chives Planting Calendar

Activity When Date Range
Transplant Outdoors May 9 May 9 โ€“ May 23
Harvest July 11 Jul 11 โ€“ Sep 19

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June โ€”
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.4"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 5b

๐Ÿ“† Growing Season

159 days in Harding County

Growing Tips for Chives in Harding County

Direct sow Chives outdoors after May 02 in Harding County when soil has warmed and frost danger has passed.

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

Common pests for 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 in spring. Cut back to 2 inches after flowering to encourage fresh growth. Both the leaves and flowers are edible and delicious.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chives in Harding County, NM?

Harding County is in Zone 5b with an average last frost of May 2. Plan your Chives planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Harding County, NM?

Harding County, New Mexico is in USDA Hardiness Zone 5b. The average last spring frost is May 2 and first fall frost is October 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Harding County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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