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When to Plant Kai Lan in Dawson County, NE

Kai lan (Chinese broccoli) is a brassica grown for its thick, glossy stems and small flower buds. It has a slightly bitter, broccoli-like flavor essential in Cantonese cooking.

Dawson County, Nebraska is in USDA Zone 5a. The average last spring frost is May 5 and the first fall frost is October 3, giving you a growing season of approximately 151 days.

At an elevation of 790 feet, Dawson County receives approximately 21.8 inches of rainfall annually with predominantly loam soil. Summer highs average 87ยฐF, providing good warmth for Kai Lan during the growing season.

Dawson County, NE (Zone 5a) Moderate season
151 days
Last Spring Frost May 5
151 growing days
First Fall Frost October 3

Dawson County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (74 days to spare)
Start indoors: Mar 25 Transplant: Apr 29 🍅 Harvest: Jun 17 – Jul 15
Recommended (50%) ✓ Fits season (74 days to spare)
Start indoors: Mar 31 Transplant: May 5 🍅 Harvest: Jun 23 – Jul 21
Safe Start (90%) ✓ Fits season (75 days to spare)
Start indoors: Apr 12 Transplant: May 17 🍅 Harvest: Jul 5 – Aug 2

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 Dawson County

How your county's soil matches Kai Lan's growing requirements.

Soil pH

Your soil pH (6.7โ€“7.8) overlaps with Kai Lan's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The loam soil in Dawson County is excellent for Kai Lan โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Kai Lan.

How to Plant Kai Lan

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 Kai Lan

3
successive plantings in your 151-day season

Sow every 5.1 weeks. Last sowing by Aug 04 to harvest before frost.

For a dedicated fall crop, sow by Jul 25.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 635 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Kai Lan needs ~801 GDD — county provides 2,302 GDD Excellent fit

Kai Lan Planting Timeline โ€” Dawson County, NE

Kai Lan Planting Calendar

Activity When Date Range
Start Indoors March 31 Mar 31 โ€“ Apr 14
Transplant Outdoors May 5 May 5 โ€“ May 19
Direct Sow April 21 Apr 21 โ€“ May 12
Fall Sowing July 25 Jul 25 โ€“ Aug 8
Harvest June 23 Jun 23 โ€“ Jul 21

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Start Indoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Fall Sowing 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

45โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 5a

๐Ÿ“† Growing Season

151 days in Dawson County

Growing Tips for Kai Lan in Dawson County

Direct sow Kai Lan outdoors after May 05 in Dawson County when soil has warmed and frost danger has passed.

Your generous 151.0-day season in Dawson County allows multiple plantings of Kai Lan. Sow every 22.0 days for continuous harvest.

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

Dawson County receives only 22" of rain annually. Kai Lan needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow in spring or fall. Harvest when flower buds first appear but before they open. Cut stems at the base to encourage side shoots. Prefers cool weather.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Level Up Your Garden

Frequently Asked Questions

When should I plant Kai Lan in Dawson County, NE?

Dawson County is in Zone 5a with an average last frost of May 5. Plan your Kai Lan planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Dawson County, NE?

Dawson County, Nebraska is in USDA Hardiness Zone 5a. The average last spring frost is May 5 and first fall frost is October 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Dawson County gardeners in Zone 5a 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 Dawson County, NE. Local conditions may vary. Last updated: April 2026.