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When to Plant Blueberries in Yakutat City and Borough, AK

Yakutat City and Borough, Alaska Zone 6b May

May in Yakutat City and Borough, Alaska — your action list

We've pulled the most time-sensitive tasks for Yakutat City and Borough, Alaska this May and put them front and centre. Tackle them in order.

Avg. last frost May 20
Avg. first frost September 25
Soil temp (4") 62°F
Watering High
Pest pressure Low
Daylight 16.7 hrs
Looking ahead to June
  • Transplants going out: blueberries

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Blueberries are long-lived shrubs producing sweet, antioxidant-rich berries. They require acidic soil and are attractive ornamental plants with fall color and spring flowers.

Yakutat City and Borough, Alaska is in USDA Zone 6b. The average last spring frost is May 20 and the first fall frost is September 25, giving you a growing season of approximately 128 days.

At an elevation of 246 feet, Yakutat City and Borough receives approximately 40.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 66°F, so choose short-season varieties of Blueberries to ensure they mature before fall.

Yakutat City and Borough, AK (Zone 6b) Short season
128 days
Last Spring Frost May 20
128 growing days
First Fall Frost September 25

Yakutat City and Borough Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jun 5
Recommended (50%) ✓ Fits season
Transplant: Jun 10
Safe Start (90%) ✓ Fits season
Transplant: Jun 22

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 Yakutat City and Borough

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

Soil pH

Your soil pH (5.2–6.3) is more alkaline than Blueberries prefers (4.5–5.5). Add sulfur or peat moss to lower pH.

Soil Texture

The silt loam soil in Yakutat City and Borough is excellent for Blueberries — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Blueberries.

Organic Matter

Organic matter is excellent (5.1%) — Blueberries will thrive.

How to Plant Blueberries

48"
Between Plants
72"
Between Rows

How Much Blueberries to Grow

5-10 lbs
Average yield per plant
2
Plants per person
48 sq ft
Space per person

For a family of 4, plant approximately 8 blueberries plants in about 192 sq ft. In Yakutat City and Borough's 128-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Blueberries

Blueberries needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Blueberries Needs Rainfall You Supplement Action
Jan 2.2" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 1.6" 0" ❄️ Dormant
Apr 1.3" 0" ❄️ Dormant
May 5.2" 2" 3.2" 🚿 Regular watering
Jun 5.2" 2.7" 2.5" 💧 Light watering
Jul 5.2" 5.1" 0.1" 💧 Light watering
Aug 5.2" 6.8" 0" ✅ Rainfall sufficient
Sep 5.2" 7.5" 0" ✅ Rainfall sufficient
Oct 4.3" 0" ❄️ Dormant
Nov 3.1" 0" ❄️ Dormant
Dec 2.2" 0" ❄️ Dormant

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

Blueberries 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.

Blueberries needs ~0 GDD — county provides 0 GDD May not mature

Blueberries Planting Timeline — Yakutat City and Borough, AK

Blueberries Planting Calendar

Activity When Date Range
Transplant Outdoors June 10 Jun 10 – Jun 24

· 48" apart · Rows 72" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · Natural rainfall sufficient

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 4.5–5.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

128 days in Yakutat City and Borough

Growing Tips for Blueberries in Yakutat City and Borough

Direct sow Blueberries outdoors after May 20 in Yakutat City and Borough when soil has warmed and frost danger has passed.

Your 128.0-day growing season in Yakutat City and Borough is tight for Blueberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant at least two varieties for cross-pollination. Acidify soil with sulfur or pine needle mulch to maintain pH 4.5-5.5. Protect ripening berries from birds with netting.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Blueberries in Yakutat City and Borough, AK?

Yakutat City and Borough is in Zone 6b with an average last frost of May 20. Plan your Blueberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Yakutat City and Borough, AK?

Yakutat City and Borough, Alaska is in USDA Hardiness Zone 6b. The average last spring frost is May 20 and first fall frost is September 25.

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Your Yakutat City and Borough Garden Planner — Free

A 24-page printable planner built for Yakutat City and Borough (Zone 6b). 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 Yakutat City and Borough, AK. 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.