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When to Plant Radish in Lander County, NV

Lander County, Nevada Zone 6b May

Your May gardening checklist

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 May 27
Avg. first frost September 22
Soil temp (4") 39°F
Watering Critical
Pest pressure Low
Daylight 14.2 hrs
  1. Direct-sow radish

    Thin ruthlessly once seedlings are up. Crowded roots mean smaller crops from every plant.

Looking ahead to June
  • First harvests: radish

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Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.

Lander County, Nevada is in USDA Zone 6b. The average last spring frost is May 27 and the first fall frost is September 22, giving you a growing season of approximately 118 days.

At an elevation of 6,987 feet, Lander County receives approximately 9.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Radish during the growing season. Sandy soil warms quickly in spring — great for early planting — but Radish will need more frequent watering and organic matter to retain nutrients. With low rainfall, drip irrigation is essential for growing Radish successfully. Mulch heavily to conserve soil moisture.

Lander County, NV (Zone 6b) Short season
118 days
Last Spring Frost May 27
118 growing days
First Fall Frost September 22
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Lander County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.8-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (68 days to spare)
Transplant: May 19 🍅 Harvest: Jun 16 – Jul 7
Recommended (50%) ✓ Fits season (69 days to spare)
Transplant: May 27 🍅 Harvest: Jun 24 – Jul 15
Safe Start (90%) ✓ Fits season (64 days to spare)
Transplant: Jun 17 🍅 Harvest: Jul 15 – Aug 5

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 Lander County

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

Soil pH

Your soil pH (6.8–8.4) is more alkaline than Radish prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Radish.

Organic Matter

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

How to Plant Radish

0.5"
Planting Depth
2"
Between Plants
6"
Between Rows

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

Succession Planting Radish

6
successive plantings in your 118-day season

Sow every 2.4 weeks. Last sowing by Aug 18 to harvest before frost.

For a dedicated fall crop, sow by Jul 14.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.3″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 398 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Radish

Radish needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Radish Needs Rainfall You Supplement Action
Jan 0.6" 0" ❄️ Dormant
Feb 0.5" 0" ❄️ Dormant
Mar 0.4" 0" ❄️ Dormant
Apr 0.3" 0" ❄️ Dormant
May 2.2" 0.2" 2" 🚿 Regular watering
Jun 2.2" 0.4" 1.8" 🚿 Regular watering
Jul 2.2" 1.8" 0.4" 💧 Light watering
Aug 2.2" 1.9" 0.3" 💧 Light watering
Sep 2.2" 1.3" 0.9" 💧 Light watering
Oct 0.9" 0" ❄️ Dormant
Nov 0.6" 0" ❄️ Dormant
Dec 0.6" 0" ❄️ Dormant

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

Radish 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.

Radish needs ~520 GDD — county provides 2,153 GDD Excellent fit

Radish Planting Timeline — Lander County, NV

Radish Planting Calendar

Activity When Date Range
Direct Sow May 13 May 13 – Jun 3
Harvest June 10 Jun 10 – Jul 1
Fall Sowing July 14 Jul 14 – Jul 28

Plant 0.5" deep · 2" apart · Rows 6" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · 1-2 times/week

📅 Days to Maturity

22–35 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

118 days in Lander County

Growing Tips for Radish in Lander County

Direct sow Radish outdoors after May 27 in Lander County when soil has warmed and frost danger has passed.

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

Summer highs in Lander County reach 91°F — grow Radish as a spring or fall crop. Use shade cloth if planting in summer.

Your generous 118.0-day season in Lander County allows multiple plantings of Radish. Sow every 11.0 days for continuous harvest.

Common pests for Radish 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 every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.

Companion Planting

Good Companions

Avoid Planting Near

  • Hyssop

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Radish in Lander County, NV?

Lander County is in Zone 6b with an average last frost of May 27. Plan your Radish planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lander County, NV?

Lander County, Nevada is in USDA Hardiness Zone 6b. The average last spring frost is May 27 and first fall frost is September 22.

🌱

Your Lander County Garden Planner — Free

A 24-page printable planner built for Lander County (Zone 6b). 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 Lander County, NV. 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.