When to Plant Haskaps in Warren County, IA
Haskaps (honeyberries) are extremely cold-hardy shrubs producing elongated blue berries with a complex blueberry-raspberry flavor. They fruit very early in the season.
Warren County, Iowa is in USDA Zone 5a. The average last spring frost is April 26 and the first fall frost is October 9, giving you a growing season of approximately 166 days.
At an elevation of 853 feet, Warren County receives approximately 30.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Haskaps during the growing season.
Warren County Soil Profile
Soil Type
Silt Loam
Soil pH
5.9-6.7
Drainage
Well Drained
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 | — | 1.5" | 0" | ❄️ Dormant |
| Mar | — | 1.8" | 0" | ❄️ Dormant |
| Apr | 4.3" | 3.1" | 1.2" | 💧 Light watering |
| May | 4.3" | 3.5" | 0.8" | 💧 Light watering |
| Jun | 4.3" | 3.7" | 0.6" | 💧 Light watering |
| Jul | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Aug | 4.3" | 3.4" | 0.9" | 💧 Light watering |
| Sep | 4.3" | 2.6" | 1.7" | 💧 Light watering |
| Oct | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| Nov | — | 2.3" | 0" | ❄️ Dormant |
| Dec | — | 1.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Warren County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Haskaps Planting Timeline — Warren County, IA
Haskaps Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 17 | May 17 – May 31 |
· 48" apart · Rows 72" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 5.5–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
166 days in Warren County
Growing Tips for Warren County
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 →
Haskaps in Other Locations
Frequently Asked Questions
When should I plant Haskaps in Warren County, IA?
Warren County is in Zone 5a with an average last frost of April 26. Plan your Haskaps planting based on this frost date — see the calendar above for exact timing.
What planting zone is Warren County, IA?
Warren County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 26 and first fall frost is October 9.
Plan Your Garden with Confidence
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