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When to Plant Daikon in Teton County, WY

Teton County, Wyoming Zone 4b May

Your May planting checklist for Teton County, Wyoming

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost June 16
Avg. first frost September 6
Soil temp (4") 34°F
Watering High
Pest pressure Low
Daylight 14.6 hrs
Coming up in June — start thinking about
  • Direct-sowing: daikon
  • Fall sowing: daikon

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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.

Teton County, Wyoming is in USDA Zone 4b. The average last spring frost is June 16 and the first fall frost is September 6, giving you a growing season of approximately 82 days.

At an elevation of 6,591 feet, Teton County receives approximately 19.3 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Daikon to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Daikon successfully. Mulch heavily to conserve soil moisture.

Teton County, WY (Zone 4b) Very short season
82 days
Last Spring Frost June 16
82 growing days
First Fall Frost September 6
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Teton County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 30 🍅 Harvest: Jul 25 – Aug 22
Recommended (50%) ✗ May not fit
Transplant: Jun 16 🍅 Harvest: Aug 11 – Sep 8
Safe Start (90%) ✓ Fits season (8 days to spare)
Transplant: Jun 28 🍅 Harvest: Aug 23 – Sep 20

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 Teton County

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

Soil pH

Your soil pH (6.8–7.6) is more alkaline than Daikon prefers (5.8–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Teton County is excellent for Daikon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Daikon.

How to Plant Daikon

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

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 10 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — 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 1.6" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 1.9" 0" ❄️ Dormant
Apr 1.9" 0" ❄️ Dormant
May 2.2" 0" ❄️ Dormant
Jun 4.3" 1.3" 3" 🚿 Regular watering
Jul 4.3" 1.8" 2.5" 🚿 Regular watering
Aug 4.3" 1.8" 2.5" 🚿 Regular watering
Sep 4.3" 1.8" 2.5" 🚿 Regular watering
Oct 1.6" 0" ❄️ Dormant
Nov 1.2" 0" ❄️ Dormant
Dec 1" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Teton County). Supplement amounts are based on average rainfall — 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" — 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.

Daikon needs ~780 GDD — county provides 1,066 GDD Excellent fit

Daikon Planting Timeline — Teton County, WY

Daikon Planting Calendar

Activity When Date Range
Direct Sow June 9 Jun 9 – Jun 30
Harvest August 4 Aug 4 – Sep 1
Fall Sowing June 14 Jun 14 – Jun 28

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.8–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 4b

📆 Growing Season

82 days in Teton County

Growing Tips for Daikon in Teton County

Direct sow Daikon outdoors after June 16 in Teton County when soil has warmed and frost danger has passed.

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

Teton County receives only 19" of rain annually. Daikon needs consistent moisture — 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 Teton County, WY?

Teton County is in Zone 4b with an average last frost of June 16. Plan your Daikon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Teton County, WY?

Teton County, Wyoming is in USDA Hardiness Zone 4b. The average last spring frost is June 16 and first fall frost is September 6.

🌱

Your Teton County Garden Planner — Free

A 24-page printable planner built for Teton County (Zone 4b). 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 Teton County, WY. 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.