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When to Plant Kohlrabi in Taos County, NM

Taos County, New Mexico Zone 6a May

May in the garden — Taos County, New Mexico

We've pulled the most time-sensitive tasks for Taos County, New Mexico this May and put them front and centre. Tackle them in order.

Avg. last frost May 26
Avg. first frost September 21
Soil temp (4") 35°F
Watering Critical
Pest pressure Low
Daylight 13.9 hrs
  1. Move kohlrabi into the garden

    Your last frost (May 26) has passed. These warm-season crops can handle outdoor soil now.

  2. Plant kohlrabi from seed, right in the garden

    Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.

Looking ahead to June
  • Starting indoors: kohlrabi

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Kohlrabi is an unusual brassica that forms a swollen stem above ground with a mild, sweet turnip-like flavor. Both the bulb and tender leaves are edible.

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 Kohlrabi during the growing season. Sandy soil warms quickly in spring — great for early planting — but Kohlrabi will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Kohlrabi 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

Taos County Soil Profile

Soil Type

Sandy Loam

Soil pH

7-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (42 days to spare)
Start indoors: Apr 7 Transplant: May 12 🍅 Harvest: Jun 30 – Aug 4
Recommended (50%) ✓ Fits season (34 days to spare)
Start indoors: Apr 21 Transplant: May 26 🍅 Harvest: Jul 14 – Aug 18
Safe Start (90%) ✓ Fits season (32 days to spare)
Start indoors: May 12 Transplant: Jun 16 🍅 Harvest: Aug 4 – Sep 8

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 Kohlrabi's growing requirements.

Soil pH

Your soil pH (7.0–8.5) is more alkaline than Kohlrabi 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. Kohlrabi 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 Kohlrabi.

How to Plant Kohlrabi

0.5"
Planting Depth
4"
Between Plants
12"
Between Rows

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

Succession Planting Kohlrabi

3
successive plantings in your 118-day season

Sow every 5.1 weeks. Last sowing by Jul 18 to harvest before frost.

For a dedicated fall crop, sow by Jul 13.

Plant Water Budget

Plant needs
0.7″/week
Rainfall provides
0.6″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 84 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Kohlrabi

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

Month Kohlrabi 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 3" 0.4" 2.6" 🚿 Regular watering
Jun 3" 0.7" 2.3" 🚿 Regular watering
Jul 3" 2.9" 0.1" 💧 Light watering
Aug 3" 3.6" 0" ✅ Rainfall sufficient
Sep 3" 2.4" 0.6" 💧 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.

Kohlrabi 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.

Kohlrabi needs ~756 GDD — county provides 1,622 GDD Excellent fit

Kohlrabi Planting Timeline — Taos County, NM

Kohlrabi Planting Calendar

Activity When Date Range
Start Indoors April 21 Apr 21 – May 5
Transplant Outdoors May 26 May 26 – Jun 9
Direct Sow May 12 May 12 – Jun 2
Harvest July 14 Jul 14 – Aug 18
Fall Sowing July 13 Jul 13 – Jul 27

Plant 0.5" deep · 4" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.7"/week · Only during dry spells

📅 Days to Maturity

45–65 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 Kohlrabi in Taos County

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

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

Common pests for Kohlrabi in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Harvest when bulbs are 2-3 inches in diameter for best texture and flavor. Larger bulbs may become woody and fibrous.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Kohlrabi in Taos County, NM?

Taos County is in Zone 6a with an average last frost of May 26. Plan your Kohlrabi 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.

🌱

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.