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When to plant Daikon in Adams County, CO

For Daikon in Adams County, the safe spring window opens around April 20 and closes around May 11. Last expected frost is May 4, first fall frost October 5, giving a 154-day growing season. A second sowing from July 27 to August 10 extends the harvest into fall.

When to Plant Daikon in Adams County, CO

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.

Adams County, Colorado is in USDA Zone 6a. The average last spring frost is May 4 and the first fall frost is October 5, giving you a growing season of approximately 154 days.

At an elevation of 5,827 feet, Adams County receives approximately 23.9 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Daikon during the growing season.

Adams County, CO (Zone 6a) Moderate season
154 days
Last Spring Frost May 4
154 growing days
First Fall Frost October 5

Adams County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Daikon Planting Timeline — Adams County, CO

Daikon Planting Calendar

Activity When Date Range
Direct Sow April 20 Apr 20 – May 11
Harvest June 15 Jun 15 – Jul 13
Fall Sowing July 27 Jul 27 – Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 5.8–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

154 days in Adams County

Growing Tips for Adams County

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 Adams County, CO?

Adams County is in Zone 6a with an average last frost of May 4. Plan your Daikon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Adams County, CO?

Adams County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 4 and first fall frost is October 5.

When should I plant Daikon in Adams County, CO?

In Adams County, CO, plant Daikon after the last frost (around May 4) and before the first frost (around October 5). Best results when soil holds above 50°F.

What growing zone is Adams County, CO for Daikon?

Adams County sits in USDA Zone 6a. Daikon grows reliably in zones 2a through 11b, so it's a good fit here.

Can Daikon grow in Adams County's climate?

Yes — Daikon grows well in Adams County's temperate climate. Adams County averages a 154-day frost-free season, with last frost around May 4 and first frost around October 5.

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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 Adams County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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