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When to Plant Crosne in Dawes County, NE

Dawes County, Nebraska Zone 5a May

Your May game plan for Dawes County, Nebraska

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Dawes County, Nebraska.

Avg. last frost May 18
Avg. first frost September 21
Soil temp (4") 56°F
Watering Moderate
Pest pressure Low
Daylight 14.4 hrs
  1. Seed crosne outdoors

    Keep the top inch of soil moist until germination — a gentle morning watering for 5–7 days does the job.

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Crosne (Chinese artichoke) produces small, segmented white tubers with a crunchy texture and mild artichoke-nutty flavor. They are a rare delicacy in French cuisine.

Dawes County, Nebraska is in USDA Zone 5a. The average last spring frost is May 18 and the first fall frost is September 21, giving you a growing season of approximately 126 days.

At an elevation of 790 feet, Dawes County receives approximately 25.2 inches of rainfall annually with predominantly loam soil. Summer highs average 81°F, so choose short-season varieties of Crosne to ensure they mature before fall.

Dawes County, NE (Zone 5a) Short season
126 days
Last Spring Frost May 18
126 growing days
First Fall Frost September 21

Dawes County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 13 🍅 Harvest: Oct 14 – Oct 28
Recommended (50%) ✗ May not fit
Transplant: May 18 🍅 Harvest: Oct 19 – Nov 2
Safe Start (90%) ✗ May not fit
Transplant: Jun 9 🍅 Harvest: Nov 10 – Nov 24

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 Dawes County

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

Soil pH

Your soil pH (6.4–7.6) overlaps with Crosne's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is excellent (4.3%) — Crosne will thrive.

How to Plant Crosne

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

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 215 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Crosne

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

Month Crosne Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 2.5" 0" ❄️ Dormant
May 4.3" 3.3" 1" 💧 Light watering
Jun 4.3" 1.8" 2.5" 🚿 Regular watering
Jul 4.3" 2" 2.3" 🚿 Regular watering
Aug 4.3" 2.5" 1.8" 💧 Light watering
Sep 4.3" 2.1" 2.2" 🚿 Regular watering
Oct 2.5" 0" ❄️ Dormant
Nov 1.8" 0" ❄️ Dormant
Dec 1.5" 0" ❄️ Dormant

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

Crosne 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.

Crosne needs ~1,881 GDD — county provides 1,354 GDD May not mature

Crosne Planting Timeline — Dawes County, NE

Crosne Planting Calendar

Activity When Date Range
Direct Sow May 4 May 4 – May 25
Harvest October 5 Oct 5 – Oct 19
Fall Sowing July 13 Jul 13 – Jul 27

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

150–200 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

126 days in Dawes County

Growing Tips for Crosne in Dawes County

Direct sow Crosne outdoors after May 18 in Dawes County when soil has warmed and frost danger has passed.

Your 126.0-day growing season in Dawes County is tight for Crosne (150.0-200.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant tubers 3 inches deep in spring. Mark the location well as plants die back. Harvest in late fall after frost. Leave some tubers in ground for next year. Very labor-intensive to harvest.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crosne in Dawes County, NE?

Dawes County is in Zone 5a with an average last frost of May 18. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dawes County, NE?

Dawes County, Nebraska is in USDA Hardiness Zone 5a. The average last spring frost is May 18 and first fall frost is September 21.

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Your Dawes County Garden Planner — Free

A 24-page printable planner built for Dawes County (Zone 5a). 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 Dawes County, NE. 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.