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Palmer, AK — Planting Guide

Palmer, Alaska Zone 4b May

Your May planting checklist for Palmer, Alaska

Your Palmer, Alaska garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost May 17
Avg. first frost September 18
Soil temp (4") 51°F
Watering High
Pest pressure Low
Daylight 17.4 hrs
  1. Plant out kale, lettuce, and angelica

    Water the tray well an hour before you transplant. Roots slide out cleanly and settle in faster.

  2. Scatter basil, carrots, and cucumber into prepared beds

    Your soil is 51°F — warm enough for these to germinate without babying.

  3. Bring in the cress and microgreens

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Get ahead of June
  • Transplants going out: basil, cucumber, and peppers
  • Starting indoors: cucumber, kale, and lettuce
  • First harvests: lettuce, radish, and arugula
  • Fall sowing: carrots, kale, and lettuce

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Palmer is in USDA Zone 4b. The average last spring frost is May 17 and the first fall frost is September 18, giving you a growing season of approximately 124 days.

At an elevation of 1,177 ft, Palmer receives approximately 52.5 in of rainfall annually. Summer highs average 69°F with winter lows around -28°F. The predominant soil type is Silt Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 39 days year to year — ranging from April 30 in warm years to June 8 in cold years. The growing season is trending longer by about 1.32 days per decade. Palmer scores 61/100 (Good) on the Microclimate Index.

🌡️ Zone

4b (°F to °F min)

❄️ Last Frost

May 17

🍂 First Frost

September 18

📅 Growing Season

124 days

⛰️ Elevation

1,177 ft

🌧️ Annual Rainfall

52.5 in

Palmer, AK Short season
124 days
Last Spring Frost May 17
124 growing days
First Fall Frost September 18

Monthly Watering Calendar

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

1"/wk 0" 2.1" 4.2" 6.2" 8.3" Jan 2.5" Feb 2.5" Mar 2.2" +2.7" Apr 1.6" +2.1" May 2.2" Jun 4.3" Jul 7.4" Aug 7.7" Sep 8.3" Oct 6.5" Nov 3.9" Dec 3.3"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 2.5 in 6 days None
Feb 2.5 in 5 days None
Mar 2.2 in 5 days None
Apr 1.6 in 4 days 2.7 in High
May 2.2 in 5 days 2.1 in High
Jun 4.3 in 7 days Low
Jul 7.4 in 10 days Low
Aug 7.7 in 14 days Low
Sep 8.3 in 13 days Low
Oct 6.5 in 9 days Low
Nov 3.9 in 7 days None
Dec 3.3 in 7 days None

Annual total: 52.4 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.

Palmer Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.7

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 6 stations

Too early frost risk Safe to Plant May 17 → Sep 18 124 frost-free days Protect crops frost returns Apr May Jun Jul Aug Sep Oct Safe: Jun 8 Protect by: Sep 28

Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.

How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.

Planting Strategy Last Spring Frost First Fall Frost Frost-Free Days
Conservative (safest) Jun 8 Sep 28 112 days
Cautious May 23 Sep 22 122 days
Average year May 17 Sep 18 124 days
Optimistic May 10 Sep 9 122 days
Aggressive (risky) Apr 30 Aug 27 119 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±39 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

🌱
Is the growing season changing?

Yes — growing seasons are getting longer here (about 1.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

61 Good
Frost Timing Risk
10.0/10
Drought Risk
1.5/10
Soil Difficulty
3.0/10
Altitude Challenge
0.4/10
Climate Shift
5.3/10
Rainfall Challenge
3.0/10

Palmer offers good growing conditions. A little planning around frost dates goes a long way.

Zone 4b Frost Countdown
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Loading...
Last Frost: May 17 First Frost: Sep 18

Local Gardening Help in Palmer

Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Palmer's climate and soil.

County Extension Office

Palmer University of Alaska Fairbanks Cooperative Extension Extension Office

Phone: 907-474-5211

Visit Extension Office Website →

Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.

Master Gardener Program

Free gardening help from trained volunteers

Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.

Find Master Gardeners in AK →

Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.

Soil Testing

Available through your extension office

Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.

Request a Soil Test →

Services Available in Palmer

Soil testing Cold-climate gardening Food preservation
Finding local nurseries & garden centers in Palmer

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Palmer's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.

How to Find Them

Search for "nurseries near Palmer AK" or "garden center Palmer" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.

Community gardens & gardening groups

Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Palmer AK" or check your extension office and local parks department. Facebook groups like "Palmer Gardeners" or "Alaska Gardening" are also excellent for local advice and plant swaps.

What to Plant After Your Harvest

After your first crops finish, use the remaining frost-free days to grow a second round.

Sunlight & Day Length

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

Longest Day

19.4 hours

Summer solstice daylight

Shortest Day

4.6 hours

Winter solstice daylight

Peak Sun Hours

9.7 hr/day peak (summer)

Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.

14hr 12hr 0h 5h 11h 16h 21h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 5.6 hr 1.7 hr Short day
February 8.4 hr 3 hr Short day
March 11.3 hr 4.9 hr Short day
April 14.5 hr 6.8 hr Long day
May 17.4 hr 8.1 hr Long day
June 19.4 hr 9.7 hr Long day
July 18.5 hr 9.1 hr Long day
August 15.7 hr 7 hr Long day
September 12.6 hr 5 hr Neutral
October 9.5 hr 3.3 hr Short day
November 6.5 hr 1.9 hr Short day
December 4.6 hr 1.1 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting Calendar

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Jun through Sep.

Best Month to Compost

Jul

Microbial activity peaks when soil is warm.

Active Composting

5 months

Solid season. Piles go dormant in winter.

60°F 70°F 23° 45° 68° 90° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 11°F 21°F ❄️ Dormant ~36 weeks
Feb 14°F 21°F ❄️ Dormant ~36 weeks
Mar 24°F 27°F ❄️ Dormant ~36 weeks
Apr 37°F 36°F ❄️ Dormant ~36 weeks
May 51°F 47°F ♻️ Active ~14 weeks
Jun 63°F 56°F ♻️ Active ~14 weeks
Jul 71°F 62°F 🔥 Peak ~8 weeks
Aug 69°F 66°F 🔥 Peak ~8 weeks
Sep 61°F 61°F ♻️ Active ~14 weeks
Oct 49°F 51°F 🐢 Slow ~24 weeks
Nov 34°F 39°F ❄️ Dormant ~36 weeks
Dec 19°F 29°F ❄️ Dormant ~36 weeks

Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Palmer

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Insect Pest Pressure

4.6 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

5.8 / 10

Moderate — watch for mildew and blight during wet periods.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 5 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate May, Jun, Jul, Aug
Cabbage worms Moderate Jun, Jul, Aug
Colorado potato beetle Moderate Jun, Jul
Flea beetles Moderate May, Jun, Jul
Slugs Low May, Jun, Jul, Aug, Sep
Organic pest management tips
  • Use row covers on susceptible crops during peak pest months
  • Apply neem oil preventatively every 7-14 days during active pest season
  • Interplant with strong-scented herbs (basil, marigold) to confuse pests
  • Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
  • Practice crop rotation — never plant the same family in the same spot within 3 years

Cover Crops for Palmer

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.

Spring Cover Crops (2 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat May 24 Jul 24 Rapid growth, attracts pollinators, suppresses weeds
White clover Apr 18 Jul 10 ✓ Yes Living mulch, fixes nitrogen, permanent ground cover
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
Crop Plant By Terminate N-Fixing Soil Benefit
Sunflowers May 30 Sep 4 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (5 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Daikon radish Jul 23 Apr 26 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jun 29 Apr 26 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Aug 9 Apr 26 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jun 11 Apr 26 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jun 21 May 3 Erosion control, weed suppression, good biomass

Wind & Microclimate

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 11 mph   Summer: 9 mph

Fall: 11 mph   Winter: 13 mph

Prevailing wind: N. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

5.3/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

High

Hilly terrain with 1,127 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.

Rainwater Harvesting Potential

How much water you can collect, when to collect it, and what size system you need for your garden.

Annual Collection

26,116 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 1,500 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

Jul, Aug, Sep, Oct

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

Mar, Apr, May

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 52.4 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 26,116 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Your area gets ample rainfall — even small barrels make a big difference
  • Consider a rain garden to handle overflow during heavy rainfall months

Soil & Growing Conditions in Palmer

Soil Type

Silt Loam

Soil pH 4.9–6.7 · Somewhat Poorly Drained drainage

Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.

Watering Needs

Drought stress: 1.5/10

Palmer has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.

Season Tips

124-day frost-free season

A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.

Your Free Printable Garden Planner

Plan every bed, every planting, every harvest — in one place. This 24-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.

Instant PDF download. No spam, unsubscribe any time.

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Recommended for Your Garden

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

📏
Digital pH Meter $10-20

Get instant, accurate soil pH readings to fine-tune your amendments.

🍂
Organic Compost $8-30

Boost soil fertility and structure with rich, well-aged organic compost.

🥬 Vegetables to Grow in Palmer

96 vegetables that grow well in Zone 4b with planting dates for Palmer.

Show all 96 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Apr 5 May 31 Jun 7 Aug 30 – Oct 4 80–100
Amaranth Mar 15 May 31 Jun 7 Sep 6 – Oct 25 90–120
Arugula Apr 5 May 10 May 17 Jun 21 – Aug 23 30–50
Asparagus May 31 730–1095
Beets May 10 Jul 5 – Aug 2 50–70
Belgian Endive Apr 5 May 10 May 17 Sep 6 – Oct 11 110–150
Black Beans May 31 Aug 30 – Oct 18 90–120
Bok Choy Apr 5 May 10 May 17 Jun 28 – Aug 2 40–60
Broccoli Apr 5 May 10 May 17 Jul 19 – Aug 30 60–90
Broccoli Rabe Apr 5 May 10 May 17 Jun 28 – Aug 2 40–60
Brussels Sprouts Apr 5 May 10 May 17 Aug 16 – Oct 11 90–130
Butternut Squash Apr 5 May 31 Jun 7 Sep 6 – Oct 11 85–110
Cabbage Apr 5 May 10 May 17 Jul 19 – Sep 13 60–100
Carrots May 10 Jul 12 – Aug 16 60–80
Cauliflower Apr 5 May 10 May 17 Jul 12 – Sep 13 55–100
Celeriac Apr 5 May 10 May 17 Aug 30 – Oct 4 100–120
Celery Apr 5 May 10 May 17 Aug 9 – Oct 4 80–120
Celtuce Apr 5 May 10 May 17 Jul 19 – Aug 30 60–90
Chard Apr 5 May 10 May 17 Jul 12 – Aug 30 50–60
Chickpeas Apr 5 May 10 May 17 Aug 9 – Sep 20 80–110
Chicory Apr 5 May 10 May 17 Jul 19 – Aug 30 60–85
Chinese Cabbage Apr 5 May 10 May 17 Jul 12 – Aug 9 50–70
Christmas Lima Beans Mar 15 May 31 Jun 7 Aug 30 – Oct 4 80–100
Collard Greens Apr 5 May 10 May 17 Jul 12 – Sep 13 55–75
Corn May 31 Aug 2 – Sep 27 60–100
Cress Apr 5 May 10 May 17 May 31 – Jun 21 14–21
Crookneck Squash Apr 5 May 31 Jun 7 Jul 26 – Aug 23 45–60
Crosne May 10 Oct 11 – Oct 4 150–200
Cucumber Apr 5 May 31 Jun 7 Aug 2 – Sep 27 50–70
Daikon May 10 Jul 5 – Aug 2 50–70
Delicata Squash Apr 5 May 31 Jun 7 Aug 30 – Oct 4 80–100
Edamame May 31 Aug 16 – Sep 27 75–100
Endive Apr 5 May 10 May 17 Jul 5 – Aug 9 45–65
Escarole Apr 5 May 10 May 17 Jul 12 – Aug 9 50–70
Fava Beans Apr 5 May 10 May 17 Aug 2 – Sep 13 75–100
Fennel Mar 15 May 31 Jun 7 Aug 9 – Sep 20 60–90
Garlic 90–240
Green Beans May 31 Jul 26 – Sep 20 50–65
Horseradish May 31 Oct 4 – Oct 25 120–180
Hubbard Squash Apr 5 May 31 Jun 7 Sep 20 – Oct 25 100–120
Kabocha Apr 5 May 31 Jun 7 Sep 6 – Oct 4 85–100
Kai Lan Apr 5 May 10 May 17 Jul 5 – Aug 2 45–60
Kale Apr 5 May 10 May 17 Jul 12 – Sep 6 50–70
Kidney Beans May 31 Aug 30 – Oct 4 85–110
Kohlrabi Apr 5 May 10 May 17 Jul 5 – Aug 9 45–65
Komatsuna Apr 5 May 10 May 17 Jun 21 – Jul 26 35–50
Leeks Apr 5 May 10 May 17 Aug 16 – Oct 11 90–150
Lentils Apr 5 May 10 May 17 Aug 9 – Sep 20 80–110
Lettuce Apr 5 May 10 May 17 Jun 21 – Aug 30 30–60
Lima Beans May 31 Aug 2 – Sep 13 60–90
Mache Apr 5 May 10 May 17 Jun 28 – Aug 2 40–60
Melon Apr 5 May 31 Jun 7 Aug 16 – Oct 4 70–100
Microgreens Apr 5 May 10 May 17 May 24 – Jun 21 7–21
Mitsuba Apr 5 May 10 May 10 Jul 5 – Aug 30 50–70
Mizuna Apr 5 May 10 May 17 Jun 21 – Jul 19 30–45
Mustard Greens Apr 5 May 10 May 17 Jun 21 – Aug 23 30–50
Napa Cabbage Apr 5 May 10 May 17 Jul 12 – Aug 16 55–75
Onion Apr 5 May 10 May 17 Aug 16 – Oct 4 90–120
Pac Choi Apr 5 May 10 May 17 Jun 28 – Jul 26 40–55
Parsnip May 10 Aug 23 – Oct 4 100–130
Patty Pan Squash Apr 5 May 31 Jun 7 Jul 26 – Aug 23 45–60
Peas Apr 5 May 10 May 17 Jul 12 – Sep 6 55–70
Peppers Mar 1 May 31 Jun 7 Aug 9 – Oct 18 60–90
Pole Beans Mar 15 May 31 Jun 7 Aug 2 – Sep 27 55–70
Potatoes Mar 15 May 31 Jun 7 Aug 16 – Oct 25 70–120
Pumpkin Apr 5 May 31 Jun 7 Sep 6 – Oct 25 85–120
Purslane Apr 5 May 10 May 17 Jun 28 – Aug 2 40–60
Radicchio Apr 5 May 10 May 17 Jul 19 – Aug 23 60–80
Radish May 10 Jun 7 – Jun 28 22–35
Rhubarb Jun 14 365–730
Romanesco Apr 5 May 10 May 17 Aug 2 – Sep 13 75–100
Rutabaga May 10 Aug 2 – Sep 6 80–100
Salsify May 10 Aug 23 – Oct 4 100–130
Savoy Cabbage Apr 5 May 10 May 17 Jul 26 – Sep 20 70–110
Scallions Apr 5 May 10 May 17 Jul 12 – Aug 9 50–70
Scarlet Runner Beans Mar 15 May 31 Jun 7 Aug 9 – Sep 13 60–80
Shallot Apr 5 May 10 May 17 Aug 16 – Oct 4 90–120
Shiso Mar 22 May 24 Jun 7 Aug 2 – Sep 27 50–70
Snap Peas Mar 15 May 31 Jun 7 Aug 2 – Sep 27 55–70
Snow Peas Apr 5 May 10 May 17 Jul 12 – Sep 6 50–65
Soybeans May 31 Aug 23 – Oct 18 80–120
Spaghetti Squash Apr 5 May 31 Jun 7 Sep 6 – Oct 4 85–100
Spinach Apr 5 May 10 May 17 Jun 21 – Aug 23 35–50
Squash (Summer) Apr 5 May 31 Jun 7 Jul 26 – Sep 27 45–65
Squash (Winter) Apr 5 May 31 Jun 7 Aug 30 – Oct 25 80–120
Sunchoke May 31 Sep 20 – Oct 25 110–150
Sunflower Mar 15 May 31 Jun 7 Aug 16 – Oct 4 70–100
Sweet Corn May 31 Aug 2 – Sep 13 60–90
Tatsoi Apr 5 May 10 May 17 Jun 21 – Jul 26 35–50
Tomatillo Mar 15 May 31 Jun 7 Aug 9 – Oct 18 60–85
Tomatoes Mar 15 May 31 Jun 7 Aug 9 – Oct 18 60–85
Turnip May 10 Jun 21 – Jul 26 40–60
Watercress Apr 5 May 10 May 17 Jun 28 – Aug 2 40–60
Watermelon Apr 5 May 31 Jun 7 Aug 16 – Oct 4 70–100
Wax Beans May 31 Jul 26 – Sep 20 50–65
Zucchini Apr 5 May 31 Jun 7 Jul 26 – Sep 20 45–60

🍓 Fruits to Grow in Palmer

22 fruits that grow well in Zone 4b with planting dates for Palmer.

Show all 22 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Jun 14 Sep 13 – Nov 8 90–180
Aronia Jun 14 730–1095
Blueberries Jun 14 730–1095
Cantaloupe Jun 14 Aug 23 – Sep 27 70–90
Cranberries Jun 14 730–1095
Currants Jun 14 730–1095
Elderberries Jun 14 730–1095
Goji Berries Jun 14 730–1095
Gooseberries Jun 14 730–1095
Grapes Jun 14 730–1095
Ground Cherry Jun 14 Aug 23 – Oct 18 65–80
Hardy Kiwi Jun 14 1095–1825
Haskaps Jun 14 730–1095
Honeydew Jun 14 Sep 6 – Oct 18 80–110
Jostaberry Jun 14 730–1095
Lingonberries Jun 14 730–1095
Medlar Jun 14 1095–1825
Mulberries Jun 14 730–1825
Persimmon Jun 14 1095–2555
Raspberries Jun 14 365–730
Serviceberries Jun 14 730–1095
Strawberries Jun 14 Sep 13 – Nov 8 90–365

🌿 Herbs to Grow in Palmer

32 herbs that grow well in Zone 4b with planting dates for Palmer.

Show all 32 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Apr 5 May 10 May 10 365–730
Anise Apr 5 May 10 May 10 Aug 9 – Oct 4 90–120
Basil Mar 22 May 24 Jun 7 Aug 2 – Oct 4 50–75
Bee Balm May 24 Aug 23 – Oct 18 90–120
Borage Apr 5 May 10 May 10 Jul 5 – Aug 23 50–60
Caraway Apr 5 May 10 May 10 365–450
Catnip May 24 Jul 26 – Sep 27 60–80
Chamomile Apr 5 May 10 May 10 Jul 12 – Sep 20 60–90
Chervil Apr 5 May 10 May 10 Jun 21 – Aug 23 40–60
Chives May 24 Jul 26 – Oct 4 60–90
Cilantro Apr 5 May 10 May 10 Jun 21 – Aug 23 40–60
Comfrey May 24 Jul 26 – Oct 4 60–90
Dill Apr 5 May 10 May 10 Jun 21 – Aug 23 40–60
Echinacea May 24 Sep 27 – Oct 18 120–180
Fennel (herb) Apr 5 May 10 May 10 Jul 12 – Sep 20 60–90
Garlic Chives May 24 Jul 26 – Oct 4 60–90
Horehound May 24 Aug 9 – Oct 4 75–90
Hyssop May 24 Aug 2 – Oct 4 70–90
Lemon Balm May 24 Jul 26 – Sep 13 60–70
Lovage May 24 Aug 2 – Oct 4 70–90
Mint May 24 Jul 26 – Oct 4 60–90
Oregano May 24 Jul 26 – Oct 4 60–90
Parsley Apr 5 May 10 May 10 Jul 12 – Sep 13 60–80
Rue May 24 Aug 2 – Oct 4 70–90
Sage May 24 Aug 9 – Oct 4 75–90
Savory May 24 Jul 19 – Sep 13 50–70
Sorrel Apr 5 May 10 May 10 Jun 21 – Aug 23 40–60
Tarragon May 24 Jul 26 – Oct 4 60–90
Thai Basil Mar 22 May 24 Jun 7 Aug 2 – Oct 4 50–75
Thyme May 24 Aug 2 – Oct 4 70–90
Valerian May 24 Sep 27 – Oct 18 120–180
Yarrow May 24 Aug 23 – Oct 18 90–120
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Monthly Planting Guide for Palmer

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Palmer.

Frequently Asked Questions

What planting zone is Palmer, AK?

Palmer is in USDA Hardiness Zone 4b. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.

When is the last frost in Palmer, AK?

Based on 31 years of NOAA weather station data, the median last spring frost in Palmer falls around May 17. In 8 out of 10 years, last frost lands between April 30 and June 8 — a 39-day window of variability. Use June 8 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Palmer, AK?

The median first fall frost in Palmer arrives around September 18. In cold years it can arrive as early as August 27; in mild years as late as September 28. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Palmer?

Palmer has a frost-free growing season of approximately 124 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 1.32 days per decade.

What is the soil like in Palmer for gardening?

Palmer has predominantly Silt Loam soil with a pH range of 4.9–6.7 and Somewhat Poorly Drained drainage. The native soil conditions make raised beds a particularly good investment here — they let you control drainage and fertility independent of the ground soil.

What is grown commercially in Palmer?

Palmer has commercial agriculture that includes Hay, Cattle, Potatoes. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is Palmer a good location for home gardening?

Palmer scores 61/100 (Good) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.

🌱

Your Palmer Garden Planner — Free

A 24-page printable planner built for Palmer (Zone 4b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

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The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.

  • Proven pairings for 200+ vegetables, herbs, flowers, and fruits
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Seed Saving & Storage Guide

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Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.

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Composting Guide for Homesteaders

Composting Guide for Homesteaders

$27 $210 value

Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.

  • 14 sections on composting methods, soil science, and troubleshooting
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  • Bonus tools: troubleshooting chart, safety guide, monitoring log
Start composting today →

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 6 weather stations in or near Palmer (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. 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.