When to Plant Lentils in Petersburg Borough, AK
Top priorities for Petersburg Borough, Alaska gardeners in April
Your garden in Petersburg Borough, Alaska is working on a schedule, even when you're not. Here's where you should be this April.
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Get lentils in the ground
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
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Put lentils seeds straight in the ground
Sow every 2 weeks for a continuous harvest. A single big planting means a single big glut.
May prep starts now
- Starting indoors: lentils
Lentils are an ancient pulse crop producing small, lens-shaped seeds packed with protein and iron. They grow on short, bushy plants and are surprisingly easy to cultivate.
Petersburg Borough, Alaska is in USDA Zone 7a. The average last spring frost is April 23 and the first fall frost is October 20, giving you a growing season of approximately 180 days.
At an elevation of 974 feet, Petersburg Borough receives approximately 17.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 57°F, so choose short-season varieties of Lentils to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Lentils successfully. Mulch heavily to conserve soil moisture.
Petersburg Borough Soil Profile
Soil Type
Silt Loam
Soil pH
4.9-6.3
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 Petersburg Borough
How your county's soil matches Lentils's growing requirements.
Soil pH
Your soil pH (4.9–6.3) is more acidic than Lentils prefers (6.0–8.0). Add garden lime to raise pH.
Soil Texture
The silt loam soil in Petersburg Borough is excellent for Lentils — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Lentils prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.
Organic Matter
Organic matter is excellent (6.8%) — Lentils will thrive.
How to Plant Lentils
Fall planting: Sow 10 weeks before your first frost date for a fall harvest.
Succession Planting Lentils
Sow every 9.1 weeks. Last sowing by Jul 02 to harvest before frost.
For a dedicated fall crop, sow by Aug 11.
Plant Water Budget
Monthly Watering Guide for Lentils
Lentils needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.
| Month | Lentils Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.9" | 0" | ❄️ Dormant |
| Feb | — | 0.9" | 0" | ❄️ Dormant |
| Mar | — | 0.7" | 0" | ❄️ Dormant |
| Apr | 2.6" | 0.5" | 2.1" | 🚿 Regular watering |
| May | 2.6" | 0.7" | 1.9" | 🚿 Regular watering |
| Jun | 2.6" | 1.2" | 1.4" | 🚿 Regular watering |
| Jul | 2.6" | 2" | 0.6" | 💧 Light watering |
| Aug | 2.6" | 2.5" | 0.1" | 💧 Light watering |
| Sep | 2.6" | 2.9" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 2.6" | 0" | ✅ Rainfall sufficient |
| Nov | — | 1.4" | 0" | ❄️ Dormant |
| Dec | — | 1.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Petersburg Borough). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Lentils 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.
Lentils Planting Timeline — Petersburg Borough, AK
Lentils Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 19 | Mar 19 – Apr 2 |
| Transplant Outdoors | April 23 | Apr 23 – May 7 |
| Direct Sow | April 9 | Apr 9 – Apr 30 |
| Harvest | July 16 | Jul 16 – Aug 27 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Only during dry spells
📅 Days to Maturity
80–110 days
🧪 Soil pH
Needs 6–8 · Your soil: too_acidic
🗺️ USDA Zone
Zone 7a
📆 Growing Season
180 days in Petersburg Borough
Growing Tips for Lentils in Petersburg Borough
Direct sow Lentils outdoors after April 23 in Petersburg Borough when soil has warmed and frost danger has passed.
Common pests for Lentils in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow in early spring as lentils tolerate frost. Provide short supports as plants tend to lodge. Harvest when lower pods turn brown. Pull entire plants and dry in bundles.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Lentils in Other Locations
Frequently Asked Questions
When should I plant Lentils in Petersburg Borough, AK?
Petersburg Borough is in Zone 7a with an average last frost of April 23. Plan your Lentils planting based on this frost date — see the calendar above for exact timing.
What planting zone is Petersburg Borough, AK?
Petersburg Borough, Alaska is in USDA Hardiness Zone 7a. The average last spring frost is April 23 and first fall frost is October 20.
Your Petersburg Borough Garden Planner — Free
A 24-page printable planner built for Petersburg Borough (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.