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When to Plant Chives in Haines Borough, AK

Haines Borough, Alaska Zone 6a April

April to-do list for Haines Borough, Alaska

A quick April briefing for Haines Borough, Alaska gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 7
Avg. first frost September 29
Soil temp (4") 46°F
Watering High
Pest pressure Low
Daylight 14.2 hrs
Coming up in May — start thinking about
  • Transplants going out: chives

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Chives are a hardy perennial herb with a mild onion flavor and attractive purple pom-pom flowers. They are one of the easiest herbs to grow and maintain.

Haines Borough, Alaska is in USDA Zone 6a. The average last spring frost is May 7 and the first fall frost is September 29, giving you a growing season of approximately 145 days.

At an elevation of 1,921 feet, Haines Borough receives approximately 57.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 68°F, so choose short-season varieties of Chives to ensure they mature before fall. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chives root diseases.

Haines Borough, AK (Zone 6a) Short season
145 days
Last Spring Frost May 7
145 growing days
First Fall Frost September 29
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Haines Borough Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (6 days to spare)
Transplant: May 5 🍅 Harvest: Jul 7 – Sep 15
Recommended (50%) ✓ Fits season (5 days to spare)
Transplant: May 14 🍅 Harvest: Jul 16 – Sep 24
Safe Start (90%) ✓ Fits season (3 days to spare)
Transplant: Jun 4 🍅 Harvest: Aug 6 – Oct 15

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 Haines Borough

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

Soil pH

Your soil pH (4.9–6.4) is more acidic than Chives prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Chives.

Organic Matter

Organic matter is excellent (6.6%) — Chives will thrive.

How to Plant Chives

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Chives

2
successive plantings in your 145-day season

Sow every 6.9 weeks. Last sowing by Jul 01 to harvest before frost.

Plant Water Budget

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

Monthly Watering Guide for Chives

Chives needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Chives Needs Rainfall You Supplement Action
Jan 2.8" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 2" 0" ❄️ Dormant
Apr 2" 0" ❄️ Dormant
May 1.7" 2.7" 0" ✅ Rainfall sufficient
Jun 1.7" 4" 0" ✅ Rainfall sufficient
Jul 1.7" 8.1" 0" ✅ Rainfall sufficient
Aug 1.7" 8.5" 0" ✅ Rainfall sufficient
Sep 1.7" 10.6" 0" ✅ Rainfall sufficient
Oct 6.5" 0" ❄️ Dormant
Nov 4.1" 0" ❄️ Dormant
Dec 3.4" 0" ❄️ Dormant

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

Chives 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.

Chives needs ~75 GDD — county provides 145 GDD Excellent fit

Chives Planting Timeline — Haines Borough, AK

Chives Planting Calendar

Activity When Date Range
Transplant Outdoors May 14 May 14 – May 28
Harvest July 16 Jul 16 – Sep 24

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.4"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6a

📆 Growing Season

145 days in Haines Borough

Growing Tips for Chives in Haines Borough

Direct sow Chives outdoors after May 07 in Haines Borough when soil has warmed and frost danger has passed.

Common pests for Chives in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

With 57" of annual rainfall in Haines Borough, ensure good drainage for Chives — excess moisture can promote root rot and fungal diseases.

General growing tips

Start from seed or divisions in spring. Cut back to 2 inches after flowering to encourage fresh growth. Both the leaves and flowers are edible and delicious.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chives in Haines Borough, AK?

Haines Borough is in Zone 6a with an average last frost of May 7. Plan your Chives planting based on this frost date — see the calendar above for exact timing.

What planting zone is Haines Borough, AK?

Haines Borough, Alaska is in USDA Hardiness Zone 6a. The average last spring frost is May 7 and first fall frost is September 29.

🌱

Your Haines Borough Garden Planner — Free

A 24-page printable planner built for Haines Borough (Zone 6a). 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 Haines Borough, AK. Local conditions may vary. Last updated: April 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.