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When to Plant Black Beans in Taos County, NM

Taos County, New Mexico Zone 6a May

Your May gardening checklist

A quick May briefing for Taos County, New Mexico gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 26
Avg. first frost September 21
Soil temp (4") 35°F
Watering Critical
Pest pressure Low
Daylight 13.9 hrs
A few tasks this May that'll pay off in June
  • Direct-sowing: black beans

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Black beans are a warm-season legume producing small, dark, protein-rich beans that are a staple in Latin American and Caribbean cuisines.

Taos County, New Mexico is in USDA Zone 6a. The average last spring frost is May 26 and the first fall frost is September 21, giving you a growing season of approximately 118 days.

At an elevation of 7,833 feet, Taos County receives approximately 17.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 85°F, providing good warmth for Black Beans during the growing season. Sandy soil warms quickly in spring — great for early planting — but Black Beans will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Black Beans successfully. Mulch heavily to conserve soil moisture.

Taos County, NM (Zone 6a) Short season
118 days
Last Spring Frost May 26
118 growing days
First Fall Frost September 21
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Taos County Soil Profile

Soil Type

Sandy Loam

Soil pH

7-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 12 🍅 Harvest: Aug 11 – Sep 29
Recommended (50%) ✗ May not fit
Transplant: May 26 🍅 Harvest: Aug 25 – Oct 13
Safe Start (90%) ✗ May not fit
Transplant: Jun 16 🍅 Harvest: Sep 15 – Nov 3

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 Taos County

How your county's soil matches Black Beans's growing requirements.

Soil pH

Your soil pH (7.0–8.5) is more alkaline than Black Beans prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Black Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 462 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Black Beans

Black Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Black Beans Needs Rainfall You Supplement Action
Jan 1.2" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 0.9" 0" ❄️ Dormant
Apr 0.7" 0" ❄️ Dormant
May 4.3" 0.4" 3.9" 🚿 Regular watering
Jun 4.3" 0.7" 3.6" 🚿 Regular watering
Jul 4.3" 2.9" 1.4" 💧 Light watering
Aug 4.3" 3.6" 0.7" 💧 Light watering
Sep 4.3" 2.4" 1.9" 💧 Light watering
Oct 1.8" 0" ❄️ Dormant
Nov 1.1" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

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

Black Beans 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.

Black Beans needs ~1,444 GDD — county provides 1,622 GDD Good fit

Black Beans Planting Timeline — Taos County, NM

Black Beans Planting Calendar

Activity When Date Range
Direct Sow June 2 Jun 2 – Jun 23
Harvest September 1 Sep 1 – Oct 20

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May
June Direct Sow
July
August
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6a

📆 Growing Season

118 days in Taos County

Growing Tips for Black Beans in Taos County

Direct sow Black Beans outdoors after May 26 in Taos County when soil has warmed and frost danger has passed.

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

Your 118.0-day growing season in Taos County is tight for Black Beans (90.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Black Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

Taos County receives only 18" of rain annually. Black Beans needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost. Provide support for climbing varieties. Allow pods to dry fully on the vine before harvesting. Thresh dried pods by hand or in a pillowcase.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Black Beans in Taos County, NM?

Taos County is in Zone 6a with an average last frost of May 26. Plan your Black Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Taos County, NM?

Taos County, New Mexico is in USDA Hardiness Zone 6a. The average last spring frost is May 26 and first fall frost is September 21.

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Your Taos County Garden Planner — Free

A 24-page printable planner built for Taos 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 Taos 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.