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When to Plant Mache in Southeast Fairbanks, AK

Southeast Fairbanks, Alaska Zone 2a May

Your May planting checklist for Southeast Fairbanks, Alaska

May is a pivotal month for Southeast Fairbanks, Alaska gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost June 6
Avg. first frost August 17
Soil temp (4") 46°F
Watering High
Pest pressure Low
Daylight 17.8 hrs
  1. Plant mache from seed, right in the garden

    These tolerate cool soil, so you're not gambling by sowing now.

  2. Get mache in for a late-season harvest

    Your first frost is about 2 weeks away — plenty of time for these to mature.

Get ahead of June
  • Transplants going out: mache

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Mache (corn salad) is a cold-hardy salad green with small, rounded, tender leaves and a mild, nutty flavor. It thrives in cool weather and even overwinters in many climates.

Southeast Fairbanks, Alaska is in USDA Zone 2a. The average last spring frost is June 6 and the first fall frost is August 17, giving you a growing season of approximately 72 days.

At an elevation of 1,414 feet, Southeast Fairbanks receives approximately 39.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 62°F, so choose short-season varieties of Mache to ensure they mature before fall.

Southeast Fairbanks, AK (Zone 2a) Very short season
72 days
Last Spring Frost June 6
72 growing days
First Fall Frost August 17

Southeast Fairbanks Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 19 Transplant: May 31 🍅 Harvest: Jul 12 – Aug 16
Recommended (50%) ✗ May not fit
Start indoors: Apr 25 Transplant: Jun 6 🍅 Harvest: Jul 18 – Aug 22
Safe Start (90%) ✓ Fits season (2 days to spare)
Start indoors: May 4 Transplant: Jun 15 🍅 Harvest: Jul 27 – Aug 31

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 Southeast Fairbanks

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

Soil pH

Your soil pH (4.9–6.6) is more acidic than Mache prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Southeast Fairbanks is excellent for Mache — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Mache.

Organic Matter

Organic matter is excellent (6.3%) — Mache will thrive.

How to Plant Mache

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 12 weeks before your first frost date for a fall harvest.

Succession Planting Mache

2
successive plantings in your 72-day season

Sow every 4.6 weeks. Last sowing by Jun 18 to harvest before frost.

For a dedicated fall crop, sow by May 25.

Plant Water Budget

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

Monthly Watering Guide for Mache

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

Month Mache Needs Rainfall You Supplement Action
Jan 2" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 1.6" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.8" 0" ❄️ Dormant
Jun 4.3" 3.5" 0.8" 💧 Light watering
Jul 4.3" 5.1" 0" ✅ Rainfall sufficient
Aug 4.3" 5.9" 0" ✅ Rainfall sufficient
Sep 6.6" 0" ❄️ Dormant
Oct 4.5" 0" ❄️ Dormant
Nov 3.3" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

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

Mache 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.

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

Mache Planting Timeline — Southeast Fairbanks, AK

Mache Planting Calendar

Activity When Date Range
Start Indoors April 25 Apr 25 – May 9
Transplant Outdoors June 6 Jun 6 – Jun 20
Direct Sow May 30 May 30 – Jun 20
Harvest July 18 Jul 18 – Aug 22
Fall Sowing May 25 May 25 – Jun 8

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 2a

📆 Growing Season

72 days in Southeast Fairbanks

Growing Tips for Mache in Southeast Fairbanks

Direct sow Mache outdoors after June 06 in Southeast Fairbanks when soil has warmed and frost danger has passed.

General growing tips

Direct sow in early spring or late summer for fall and winter harvest. Seeds need light to germinate so press gently into soil surface. Harvest whole rosettes.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Mache in Southeast Fairbanks, AK?

Southeast Fairbanks is in Zone 2a with an average last frost of June 6. Plan your Mache planting based on this frost date — see the calendar above for exact timing.

What planting zone is Southeast Fairbanks, AK?

Southeast Fairbanks, Alaska is in USDA Hardiness Zone 2a. The average last spring frost is June 6 and first fall frost is August 17.

🌱

Your Southeast Fairbanks Garden Planner — Free

A 24-page printable planner built for Southeast Fairbanks (Zone 2a). 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 Southeast Fairbanks, 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.