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When to Plant Scarlet Runner Beans in Nome Census Area, AK

Nome Census Area, Alaska Zone 3b May

Top priorities for Nome Census Area, Alaska gardeners in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost June 3
Avg. first frost September 2
Soil temp (4") 42°F
Watering High
Pest pressure Low
Daylight 18.1 hrs
Looking ahead to June
  • Transplants going out: scarlet runner beans
  • Direct-sowing: scarlet runner beans

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Scarlet runner beans are ornamental and edible climbing beans with vivid red flowers that attract hummingbirds. Both the young pods and mature beans are edible.

Nome Census Area, Alaska is in USDA Zone 3b. The average last spring frost is June 3 and the first fall frost is September 2, giving you a growing season of approximately 91 days.

At an elevation of 2,593 feet, Nome Census Area receives approximately 39.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 61°F, so choose short-season varieties of Scarlet Runner Beans to ensure they mature before fall.

Nome Census Area, AK (Zone 3b) Very short season
91 days
Last Spring Frost June 3
91 growing days
First Fall Frost September 2
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Nome Census Area Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Mar 29 Transplant: Jun 21 🍅 Harvest: Aug 23 – Sep 27
Recommended (50%) ✗ May not fit
Start indoors: Apr 1 Transplant: Jun 24 🍅 Harvest: Aug 26 – Sep 30
Safe Start (90%) ✗ May not fit
Start indoors: Apr 10 Transplant: Jul 3 🍅 Harvest: Sep 4 – Oct 9

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 Nome Census Area

How your county's soil matches Scarlet Runner Beans's growing requirements.

Soil pH

Your soil pH (5.0–6.7) is more acidic than Scarlet Runner Beans prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Nome Census Area is excellent for Scarlet Runner Beans — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Scarlet Runner Beans.

Organic Matter

Organic matter is excellent (6.2%) — Scarlet Runner Beans will thrive.

How to Plant Scarlet Runner Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Scarlet Runner Beans

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

Month Scarlet Runner Beans Needs Rainfall You Supplement Action
Jan 2" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 1.4" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.8" 0" ❄️ Dormant
Jun 4.3" 3.2" 1.1" 💧 Light watering
Jul 4.3" 5.2" 0" ✅ Rainfall sufficient
Aug 4.3" 6.1" 0" ✅ Rainfall sufficient
Sep 4.3" 6.5" 0" ✅ Rainfall sufficient
Oct 4.8" 0" ❄️ Dormant
Nov 3.2" 0" ❄️ Dormant
Dec 2.6" 0" ❄️ Dormant

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

Scarlet Runner Beans 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.

Scarlet Runner Beans needs ~0 GDD — county provides 0 GDD May not mature

Scarlet Runner Beans Planting Timeline — Nome Census Area, AK

Scarlet Runner Beans Planting Calendar

Activity When Date Range
Start Indoors April 1 Apr 1 – Apr 15
Transplant Outdoors June 24 Jun 24 – Jul 8
Direct Sow June 17 Jun 17 – Jul 8
Harvest August 26 Aug 26 – Sep 30

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May
June Transplant Outdoors Direct Sow
July Transplant Outdoors Direct Sow
August Harvest
September Harvest
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 3b

📆 Growing Season

91 days in Nome Census Area

Growing Tips for Scarlet Runner Beans in Nome Census Area

Direct sow Scarlet Runner Beans outdoors after June 03 in Nome Census Area when soil has warmed and frost danger has passed.

Your 91.0-day growing season in Nome Census Area is tight for Scarlet Runner Beans (60.0-80.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Scarlet Runner Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Provide tall trellising for vigorous vines. Direct sow after frost. Harvest pods young for snap beans or let mature for shelling beans. Tubers are perennial in mild climates.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Scarlet Runner Beans in Nome Census Area, AK?

Nome Census Area is in Zone 3b with an average last frost of June 3. Plan your Scarlet Runner Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Nome Census Area, AK?

Nome Census Area, Alaska is in USDA Hardiness Zone 3b. The average last spring frost is June 3 and first fall frost is September 2.

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Your Nome Census Area Garden Planner — Free

A 24-page printable planner built for Nome Census Area (Zone 3b). 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 Nome Census Area, 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.