When to Plant Jostaberry in Prince of Wales-Hyder, AK
Your May gardening checklist
May is a pivotal month for Prince of Wales-Hyder, Alaska gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Harden off and plant jostaberry
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
Jostaberry is a thornless hybrid of black currant and gooseberry, producing medium-sized, dark berries with a complex, tart-sweet flavor. It is vigorous and disease-resistant.
Prince of Wales-Hyder, Alaska is in USDA Zone 8a. The average last spring frost is April 13 and the first fall frost is November 1, giving you a growing season of approximately 202 days.
At an elevation of 257 feet, Prince of Wales-Hyder receives approximately 14.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 70°F, so choose short-season varieties of Jostaberry to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Jostaberry successfully. Mulch heavily to conserve soil moisture.
Prince of Wales-Hyder Soil Profile
Soil Type
Silt Loam
Soil pH
5.2-6.8
Drainage
Well Drained
Plant Planting Risk Windows
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 Prince of Wales-Hyder
How your county's soil matches Jostaberry's growing requirements.
Soil pH
Your soil pH (5.2–6.8) overlaps with Jostaberry's range (6.0–6.5), though not a perfect match.
Soil Texture
The silt loam soil in Prince of Wales-Hyder is excellent for Jostaberry — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Jostaberry.
Organic Matter
Organic matter is excellent (6.0%) — Jostaberry will thrive.
How to Plant Jostaberry
Plant Water Budget
Monthly Watering Guide for Jostaberry
Jostaberry needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Jostaberry Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.8" | 0" | ❄️ Dormant |
| Feb | — | 0.7" | 0" | ❄️ Dormant |
| Mar | — | 0.6" | 0" | ❄️ Dormant |
| Apr | 4.3" | 0.4" | 3.9" | 🚿 Regular watering |
| May | 4.3" | 0.7" | 3.6" | 🚿 Regular watering |
| Jun | 4.3" | 1" | 3.3" | 🚿 Regular watering |
| Jul | 4.3" | 1.6" | 2.7" | 🚿 Regular watering |
| Aug | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Sep | 4.3" | 2.8" | 1.5" | 💧 Light watering |
| Oct | 4.3" | 1.7" | 2.6" | 🚿 Regular watering |
| Nov | 4.3" | 1.1" | 3.2" | 🚿 Regular watering |
| Dec | — | 0.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Nov in Prince of Wales-Hyder). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Jostaberry 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.
Jostaberry Planting Timeline — Prince of Wales-Hyder, AK
Jostaberry Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 4 | May 4 – May 18 |
· 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
Partial Shade (3-6 hours)
💧 Water
1"/week · 1-2 times/week
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 6–6.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 8a
📆 Growing Season
202 days in Prince of Wales-Hyder
Growing Tips for Jostaberry in Prince of Wales-Hyder
Direct sow Jostaberry outdoors after April 13 in Prince of Wales-Hyder when soil has warmed and frost danger has passed.
Your 202.0-day growing season in Prince of Wales-Hyder is tight for Jostaberry (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.
Prince of Wales-Hyder receives only 14" of rain annually. Jostaberry needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Plant in rich, well-drained soil. No special pruning required beyond removing old wood. Self-fertile but yields improve with a second bush. Berries ripen midsummer.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Jostaberry in Other Locations
Frequently Asked Questions
When should I plant Jostaberry in Prince of Wales-Hyder, AK?
Prince of Wales-Hyder is in Zone 8a with an average last frost of April 13. Plan your Jostaberry planting based on this frost date — see the calendar above for exact timing.
What planting zone is Prince of Wales-Hyder, AK?
Prince of Wales-Hyder, Alaska is in USDA Hardiness Zone 8a. The average last spring frost is April 13 and first fall frost is November 1.
Your Prince of Wales-Hyder Garden Planner — Free
A 24-page printable planner built for Prince of Wales-Hyder (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.