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When to Plant Spinach in Catron County, NM

Catron County, New Mexico Zone 6a May

May to-do list for Catron County, New Mexico

May is a pivotal month for Catron County, New Mexico gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost June 3
Avg. first frost September 22
Soil temp (4") 33°F
Watering Critical
Pest pressure Low
Daylight 13.8 hrs
  1. Sow spinach where they'll grow

    Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.

June prep starts now
  • Transplants going out: spinach

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Spinach is a nutrient-packed cool-season green that grows quickly in spring and fall. It is rich in iron, vitamins, and antioxidants and excellent raw or cooked.

Catron County, New Mexico is in USDA Zone 6a. The average last spring frost is June 3 and the first fall frost is September 22, giving you a growing season of approximately 111 days.

At an elevation of 8,232 feet, Catron County receives approximately 10.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 83°F, so choose short-season varieties of Spinach to ensure they mature before fall. Sandy soil warms quickly in spring — great for early planting — but Spinach will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Spinach successfully. Mulch heavily to conserve soil moisture.

Catron County, NM (Zone 6a) Short season
111 days
Last Spring Frost June 3
111 growing days
First Fall Frost September 22

Catron County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (14 days to spare)
Start indoors: Apr 24 Transplant: May 29 🍅 Harvest: Jul 3 – Sep 4
Recommended (50%) ✓ Fits season (13 days to spare)
Start indoors: Apr 29 Transplant: Jun 3 🍅 Harvest: Jul 8 – Sep 9
Safe Start (90%) ✓ Fits season (8 days to spare)
Start indoors: May 16 Transplant: Jun 20 🍅 Harvest: Jul 25 – Sep 26

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 Catron County

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

Soil pH

Your soil pH (7.3–8.7) is more alkaline than Spinach prefers (6.5–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Spinach.

Organic Matter

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

How to Plant Spinach

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Spinach

3
successive plantings in your 111-day season

Sow every 4 weeks. Last sowing by Aug 03 to harvest before frost.

For a dedicated fall crop, sow by Jul 14.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.4″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 612 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Spinach

Spinach needs approximately 0.7 inches of water per week (3" per month). Here's how your county's rainfall compares month by month.

Month Spinach Needs Rainfall You Supplement Action
Jan 0.8" 0" ❄️ Dormant
Feb 0.6" 0" ❄️ Dormant
Mar 0.5" 0" ❄️ Dormant
Apr 0.3" 0" ❄️ Dormant
May 0.2" 0" ❄️ Dormant
Jun 3" 0.3" 2.7" 🚿 Regular watering
Jul 3" 1.8" 1.2" 💧 Light watering
Aug 3" 2.2" 0.8" 💧 Light watering
Sep 3" 1.4" 1.6" 🚿 Regular watering
Oct 1" 0" ❄️ Dormant
Nov 0.6" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Catron County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Spinach 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.

Spinach needs ~521 GDD — county provides 1,359 GDD Excellent fit

Spinach Planting Timeline — Catron County, NM

Spinach Planting Calendar

Activity When Date Range
Start Indoors April 29 Apr 29 – May 13
Transplant Outdoors June 3 Jun 3 – Jun 17
Direct Sow May 20 May 20 – Jun 10
Harvest July 8 Jul 8 – Sep 9
Fall Sowing July 14 Jul 14 – Jul 28

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May Start Indoors Direct Sow
June Transplant Outdoors Direct Sow
July Fall Sowing Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.7"/week · 1-2 times/week

📅 Days to Maturity

35–50 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

111 days in Catron County

Growing Tips for Spinach in Catron County

Direct sow Spinach outdoors after June 03 in Catron County when soil has warmed and frost danger has passed.

Sandy soil in Catron County dries quickly — mulch Spinach with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

General growing tips

Direct sow as soon as soil can be worked in spring. Plant in partial shade for summer crops to delay bolting. Succession plant every 2 weeks for continuous harvest.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

🌾 Save Your Own Spinach Seeds
Life Cycle Annual
Pollination Wind Pollinated
How to Collect Let plants bolt. Harvest seed stalks when seeds turn tan.
Storage Store airtight; viable 5 years at 35°F, under 45% humidity.

Wind pollinated — isolate 1/2 mile for purity. Easy to let bolt in heat.

Frequently Asked Questions

When should I plant Spinach in Catron County, NM?

Catron County is in Zone 6a with an average last frost of June 3. Plan your Spinach planting based on this frost date — see the calendar above for exact timing.

What planting zone is Catron County, NM?

Catron County, New Mexico is in USDA Hardiness Zone 6a. The average last spring frost is June 3 and first fall frost is September 22.

🌱

Your Catron County Garden Planner — Free

A 24-page printable planner built for Catron County (Zone 6a). 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 Catron County, NM. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.