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When to Plant Daikon in Guadalupe County, NM

Daikon is a large, mild Japanese radish that can grow over a foot long. It is excellent for pickling, stir-fries, and as a soil-breaking cover crop.

Guadalupe County, New Mexico is in USDA Zone 6b. The average last spring frost is May 2 and the first fall frost is October 10, giving you a growing season of approximately 161 days.

At an elevation of 4,169 feet, Guadalupe County receives approximately 16 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 88ยฐF, providing good warmth for Daikon during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Daikon will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Daikon successfully. Mulch heavily to conserve soil moisture.

Guadalupe County, NM (Zone 6b) Moderate season
161 days
Last Spring Frost May 2
161 growing days
First Fall Frost October 10

Guadalupe 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 (78 days to spare)
Transplant: Apr 26 🍅 Harvest: Jun 21 – Jul 19
Recommended (50%) ✓ Fits season (77 days to spare)
Transplant: May 2 🍅 Harvest: Jun 27 – Jul 25
Safe Start (90%) ✓ Fits season (75 days to spare)
Transplant: May 19 🍅 Harvest: Jul 14 – Aug 11

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 Guadalupe County

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

Soil pH

Your soil pH (7.2โ€“8.8) is more alkaline than Daikon prefers (5.8โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Guadalupe County warms quickly in spring but drains fast. Daikon 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 Daikon.

How to Plant Daikon

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 Daikon

3
successive plantings in your 161-day season

Sow every 5.7 weeks. Last sowing by Aug 01 to harvest before frost.

For a dedicated fall crop, sow by Aug 01.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.4″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,002 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Daikon

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

Month Daikon Needs Rainfall You Supplement Action
Jan โ€” 1.2" 0" โ„๏ธ Dormant
Feb โ€” 1" 0" โ„๏ธ Dormant
Mar โ€” 1" 0" โ„๏ธ Dormant
Apr โ€” 0.6" 0" โ„๏ธ Dormant
May 4.3" 0.3" 4" ๐Ÿšฟ Regular watering
Jun 4.3" 0.5" 3.8" ๐Ÿšฟ Regular watering
Jul 4.3" 2.4" 1.9" ๐Ÿ’ง Light watering
Aug 4.3" 3.3" 1" ๐Ÿ’ง Light watering
Sep 4.3" 2.1" 2.2" ๐Ÿšฟ Regular watering
Oct 4.3" 1.4" 2.9" ๐Ÿšฟ Regular watering
Nov โ€” 1.1" 0" โ„๏ธ Dormant
Dec โ€” 1" 0" โ„๏ธ Dormant

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

Daikon 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.

Daikon needs ~960 GDD — county provides 2,576 GDD Excellent fit

Daikon Planting Timeline โ€” Guadalupe County, NM

Daikon Planting Calendar

Activity When Date Range
Direct Sow April 18 Apr 18 โ€“ May 9
Harvest June 13 Jun 13 โ€“ Jul 11
Fall Sowing August 1 Aug 1 โ€“ Aug 15

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

50โ€“70 days

๐Ÿงช Soil pH

Needs 5.8โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 6b

๐Ÿ“† Growing Season

161 days in Guadalupe County

Growing Tips for Daikon in Guadalupe County

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

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

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

Guadalupe County receives only 16" of rain annually. Daikon needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow in late summer for fall harvest. Loosen soil deeply before planting. Thin seedlings to 6 inches apart. Harvest before hard freeze as exposed shoulders may crack.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Daikon in Guadalupe County, NM?

Guadalupe County is in Zone 6b with an average last frost of May 2. Plan your Daikon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Guadalupe County, NM?

Guadalupe County, New Mexico is in USDA Hardiness Zone 6b. The average last spring frost is May 2 and first fall frost is October 10.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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