When to plant Leeks in Bethel Census Area, AK
Bethel Census Area's climate puts the Leeks spring window between May 15 and June 5. be cautious and check the 10-day forecast before planting tender crops. A second sowing from June 29 to July 13 extends the harvest into fall.
When to Plant Leeks in Bethel Census Area, AK
July in the garden — Bethel Census Area, Alaska
Here's what deserves your attention in Bethel Census Area, Alaska this month. Everything below is tailored to Zone 4a and timed around your local frost dates.
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Get leeks seeds going inside
A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.
Looking ahead to August
- First harvests: leeks
Leeks are a mild, sweet allium that produces long white shanks. They are more refined than onions and are a key ingredient in soups, stews, and gratins.
Bethel Census Area, Alaska is in USDA Zone 4a. The average last spring frost is May 22 and the first fall frost is September 21, giving you a growing season of approximately 122 days.
At an elevation of 1,369 feet, Bethel Census Area receives approximately 50.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 70°F, so choose short-season varieties of Leeks to ensure they mature before fall. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Leeks root diseases.
Bethel Census Area Soil Profile
Soil Type
Silt Loam
Soil pH
5.2-6.3
Drainage
Well Drained
Leeks 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 Bethel Census Area
How your county's soil matches Leeks's growing requirements.
Soil pH
Your soil pH (5.2–6.3) is more acidic than Leeks prefers (6.0–7.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Bethel Census Area is excellent for Leeks — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Leeks.
Organic Matter
Organic matter is excellent (5.8%) — Leeks will thrive.
How to Plant Leeks
Fall planting: Sow 12 weeks before your first frost date for a fall harvest.
Leeks Water Budget
Monthly Watering Guide for Leeks
Leeks needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.
| Month | Leeks Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 2.6" | 0" | ❄️ Dormant |
| Feb | — | 2" | 0" | ❄️ Dormant |
| Mar | — | 2" | 0" | ❄️ Dormant |
| Apr | — | 1.4" | 0" | ❄️ Dormant |
| May | 3.5" | 1.8" | 1.7" | 💧 Light watering |
| Jun | 3.5" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 3.5" | 6.3" | 0" | ✅ Rainfall sufficient |
| Aug | 3.5" | 7.6" | 0" | ✅ Rainfall sufficient |
| Sep | 3.5" | 9.4" | 0" | ✅ Rainfall sufficient |
| Oct | — | 6.7" | 0" | ❄️ Dormant |
| Nov | — | 4.1" | 0" | ❄️ Dormant |
| Dec | — | 2.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Bethel Census Area). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Leeks 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.
Leeks Planting Timeline — Bethel Census Area, AK
Leeks Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 10 | Apr 10 – Apr 24 |
| Transplant Outdoors | May 22 | May 22 – Jun 5 |
| Direct Sow | May 15 | May 15 – Jun 5 |
| Harvest | August 21 | Aug 21 – Oct 16 |
| Fall Sowing | June 29 | Jun 29 – Jul 13 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Transplant Outdoors Direct Sow Fall Sowing |
| July | Fall Sowing |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.8"/week · Natural rainfall sufficient
📅 Days to Maturity
90–150 days
🧪 Soil pH
Needs 6–7 · Your soil: too_acidic
🗺️ USDA Zone
Zone 4a
📆 Growing Season
122 days in Bethel Census Area
Growing Tips for Leeks in Bethel Census Area
Direct sow Leeks outdoors after May 22 in Bethel Census Area when soil has warmed and frost danger has passed.
Your 122.0-day growing season in Bethel Census Area is tight for Leeks (90.0-150.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Leeks in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 10-12 weeks before last frost. Transplant into trenches and hill soil around stems as they grow to increase the white portion. Harvest as needed.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Leeks in Other Locations
Frequently Asked Questions
When should I plant Leeks in Bethel Census Area, AK?
Bethel Census Area is in Zone 4a with an average last frost of May 22. Plan your Leeks planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bethel Census Area, AK?
Bethel Census Area, Alaska is in USDA Hardiness Zone 4a. The average last spring frost is May 22 and first fall frost is September 21.
When should I plant Leeks in Bethel Census Area, AK?
In Bethel Census Area, AK, plant Leeks after the last frost (around May 22) and before the first frost (around September 21). Best results when soil holds above 50°F.
What growing zone is Bethel Census Area, AK for Leeks?
Bethel Census Area sits in USDA Zone 4a. Leeks grows reliably in zones 3a through 10b, so it's a good fit here.
Can Leeks grow in Bethel Census Area's climate?
Yes — Leeks grows well in Bethel Census Area's temperate climate. Bethel Census Area averages a 122-day frost-free season, with last frost around May 22 and first frost around September 21.
Your Bethel Census Area Garden Planner — Free
A 22-page printable planner built for Bethel Census Area (Zone 4a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.