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When to plant Haskaps in Dickinson County County,

Dickinson County County's short 159-day growing season means one Haskaps planting between May 21 and June 4. No fall crop in Zone 5a.

When to Plant Haskaps in Dickinson County, IA

Dickinson County, Iowa Zone 5a June

What to do in June

Your garden in Dickinson County, Iowa is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost April 30
Avg. first frost October 6
Soil temp (4") 64°F
Watering Low
Pest pressure High
Daylight 15.2 hrs

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Haskaps (honeyberries) are extremely cold-hardy shrubs producing elongated blue berries with a complex blueberry-raspberry flavor. They fruit very early in the season.

Dickinson County, Iowa is in USDA Zone 5a. The average last spring frost is April 30 and the first fall frost is October 6, giving you a growing season of approximately 159 days.

At an elevation of 1,311 feet, Dickinson County receives approximately 33.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Haskaps to ensure they mature before fall.

Dickinson County, IA (Zone 5a) Moderate season
159 days
Last Spring Frost April 30
159 growing days
First Fall Frost October 6

Dickinson County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

Drainage

Well Drained

Haskaps Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 13
Recommended (50%) ✓ Fits season
Transplant: May 21
Safe Start (90%) ✓ Fits season
Transplant: Jun 4

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 Dickinson County

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

Soil pH

Your soil pH (5.7–7.0) is within Haskaps's preferred range (5.5–7.5).

Soil Texture

The silt loam soil in Dickinson County is excellent for Haskaps — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.8%) — Haskaps will thrive.

How to Plant Haskaps

48"
Between Plants
72"
Between Rows

Haskaps Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 209 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Haskaps

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

Month Haskaps Needs Rainfall You Supplement Action
Jan 1.2" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.5" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 3.3" 1" 💧 Light watering
Aug 4.3" 3.9" 0.4" 💧 Light watering
Sep 4.3" 2.8" 1.5" 💧 Light watering
Oct 4.3" 2.3" 2" 💧 Light watering
Nov 2.5" 0" ❄️ Dormant
Dec 2" 0" ❄️ Dormant

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

Haskaps 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.

Haskaps needs ~11,862 GDD — county provides 2,067 GDD May not mature

Haskaps Planting Timeline — Dickinson County, IA

Haskaps Planting Calendar

Activity When Date Range
Transplant Outdoors May 21 May 21 – Jun 4

· 48" apart · Rows 72" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June Transplant Outdoors
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 5a

📆 Growing Season

159 days in Dickinson County

Growing Tips for Haskaps in Dickinson County

Direct sow Haskaps outdoors after April 30 in Dickinson County when soil has warmed and frost danger has passed.

Your 159.0-day growing season in Dickinson County is tight for Haskaps (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant at least two different varieties for cross-pollination. Fruits ripen 2-3 weeks before strawberries. Protect from birds. Very low maintenance once established. Tolerates extreme cold.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Haskaps in Dickinson County, IA?

Dickinson County is in Zone 5a with an average last frost of April 30. Plan your Haskaps planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dickinson County, IA?

Dickinson County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 30 and first fall frost is October 6.

When should I plant Haskaps in Dickinson County, ?

In Dickinson County, , plant Haskaps after the last frost (around April 30) and before the first frost (around October 6). Best results when soil holds above 50°F.

What growing zone is Dickinson County, for Haskaps?

Dickinson County sits in USDA Zone 5a. Haskaps grows reliably in zones 2a through 7b, so it's a good fit here.

Can Haskaps grow in Dickinson County's climate?

Yes — Haskaps grows well in Dickinson County's temperate climate. Dickinson County averages a 159-day frost-free season, with last frost around April 30 and first frost around October 6.

🌱

Your Dickinson County Garden Planner — Free

A 22-page printable planner built for Dickinson 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 Dickinson County, IA. Local conditions may vary. Last updated: June 2026.

Sources & credits

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