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Bethel Census Area, AK — Planting Guide

Bethel Census Area, Alaska Zone 4a June

Top priorities for Bethel Census Area, Alaska gardeners in June

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

Avg. last frost May 22
Avg. first frost September 21
Soil temp (4") 60°F
Watering Low
Pest pressure Moderate
Daylight 18.7 hrs
  1. Set out basil, cucumber, and peppers seedlings

    Pinch off the lowest leaves on each seedling before you plant — it reduces water loss while the roots catch up.

  2. Outdoor sowing time: cucumber, green beans, and peppers

    Thin ruthlessly once seedlings are up. Crowded roots mean smaller crops from every plant.

  3. Indoor seed-starting week for cosmos, dahlias, and nasturtium

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

  4. Harvest lettuce, radish, and arugula as they ripen

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

  5. Kick off the fall garden with carrots, kale, and lettuce

    Count back from your first frost (September 21) — these need to mature before the cold arrives.

July will be here before you know it — start on
  • Starting indoors: basil, cucumber, and kale
  • First harvests: carrots, green beans, and kale

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Bethel Census Area 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 ft, Bethel Census Area receives approximately 50.7 in of rainfall annually. Summer highs average 70°F with winter lows around 6°F. The predominant soil type is Silt Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 26 days year to year — ranging from May 8 in warm years to June 3 in cold years. The growing season is trending longer by about 2.32 days per decade. Bethel Census Area scores 55/100 (Moderate) on the Microclimate Index.

🌡️ Zone

4a (-30°F to -25°F min)

❄️ Last Frost

May 22

🍂 First Frost

September 21

📅 Growing Season

122 days

⛰️ Elevation

1,369 ft

🌧️ Annual Rainfall

50.7 in

Bethel Census Area, AK Short season
122 days
Last Spring Frost May 22
122 growing days
First Fall Frost September 21

Monthly Watering Calendar for Bethel Census Area

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

For new gardeners: A drip irrigation system pays for itself in 1-2 seasons in any climate. Bethel Census Area's 51" annual rainfall determines whether you'll run it weekly (dry zones) or maybe just during summer dry spells (wet zones).

1"/wk 0" 2.4" 4.7" 7.1" 9.4" Jan 2.6" Feb 2" Mar 2" Apr 1.4" +2.5" May 1.8" Jun 4" Jul 6.3" Aug 7.6" Sep 9.4" Oct 6.7" Nov 4.1" Dec 2.8"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 2.6 in 5 days None
Feb 2 in 4 days None
Mar 2 in 5 days None
Apr 1.4 in 5 days None
May 1.8 in 6 days 2.5 in High
Jun 4 in 6 days 0.3 in Low
Jul 6.3 in 11 days Low
Aug 7.6 in 12 days Low
Sep 9.4 in 13 days Low
Oct 6.7 in 10 days None
Nov 4.1 in 8 days None
Dec 2.8 in 7 days None

Annual total: 50.7 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.

Bethel Census Area Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 1 stations

Too early frost risk Safe to Plant May 22 → Sep 21 122 frost-free days Protect crops frost returns May Jun Jul Aug Sep Oct Safe: Jun 3 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 3 Sep 28 117 days
Cautious May 29 Sep 25 119 days
Average year May 22 Sep 21 122 days
Optimistic May 16 Sep 15 122 days
Aggressive (risky) May 8 Aug 31 115 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±26 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 2.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

55 Moderate
Frost Timing Risk
10.0/10
Drought Risk
1.5/10
Soil Difficulty
3.0/10
Altitude Challenge
0.7/10
Climate Shift
9.3/10
Rainfall Challenge
2.3/10

Bethel Census Area presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 4a Frost Countdown
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Loading...
Last Frost: May 22 First Frost: Sep 21

Local Gardening Help in Bethel Census Area

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 Bethel Census Area's climate and soil.

County Extension Office

Bethel Census Area 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 Bethel Census Area

Soil testing Cold-climate gardening Food preservation
Finding local nurseries & garden centers in Bethel Census Area

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Bethel Census Area'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 Bethel Census Area AK" or "garden center Bethel Census Area" 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 Bethel Census Area AK" or check your extension office and local parks department. Facebook groups like "Bethel Census Area 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.

Show 1 more succession options
After Turnip (harvest ends Aug 7) 45 days until frost

Sunlight & Day Length in Bethel Census Area

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

Why this matters: Plants use day length as their seasonal clock. Some crops flower when days lengthen (most flowers), some when days shorten (chrysanthemums, soybeans). Bethel Census Area's curve is the timing layer beneath everything you grow.

Longest Day

18.7 hours

Summer solstice daylight

Shortest Day

5.3 hours

Winter solstice daylight

Peak Sun Hours

9.4 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 10h 15h 20h 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 6.1 hr 1.9 hr Short day
February 8.7 hr 3 hr Short day
March 11.3 hr 4.7 hr Short day
April 14.3 hr 6.3 hr Long day
May 17 hr 8 hr Long day
June 18.7 hr 9.4 hr Long day
July 18 hr 8.9 hr Long day
August 15.5 hr 7.3 hr Long day
September 12.5 hr 4.8 hr Neutral
October 9.7 hr 3.5 hr Short day
November 6.9 hr 2 hr Short day
December 5.3 hr 1.3 hr Short day

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

Soil Temperature & Composting in Bethel Census Area

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

For new gardeners: Soil temperature predicts plant emergence better than calendar dates. Bethel Census Area's spring soil warm-up curve tells you which weeks are safe for direct-sow beans, cucumbers, squash, and corn.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Jul through Aug.

Best Month to Compost

Jul

Microbial activity peaks when soil is warm.

Active Composting

4 months

Short season — insulate pile or use indoor vermicomposting.

60°F 70°F 20° 40° 60° 80° 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 5°F 13°F ❄️ Dormant ~36 weeks
Feb 5°F 12°F ❄️ Dormant ~36 weeks
Mar 18°F 20°F ❄️ Dormant ~36 weeks
Apr 32°F 32°F ❄️ Dormant ~36 weeks
May 45°F 44°F 🐢 Slow ~24 weeks
Jun 60°F 51°F ♻️ Active ~14 weeks
Jul 66°F 59°F 🔥 Peak ~8 weeks
Aug 66°F 60°F 🔥 Peak ~8 weeks
Sep 59°F 55°F ♻️ Active ~14 weeks
Oct 45°F 45°F 🐢 Slow ~24 weeks
Nov 30°F 36°F ❄️ Dormant ~36 weeks
Dec 12°F 23°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 Bethel Census Area

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

Why it matters: In Bethel Census Area's climate, pest pressure shapes which crops are easy and which are heartbreak. Tomatoes are easy in dry mountain air, hard in humid coast — same plant, completely different gardening experience.

Insect Pest Pressure

4.8 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

5.2 / 10

Moderate — watch for mildew and blight during wet periods.

Seasonal Risk

Spring Low
Summer Moderate
Fall Low
Winter Low
View 4 common pests in your area
PestRisk LevelPeak Months
Aphids Low Jun, Jul, Aug
Cabbage worms Low Jun, Jul, Aug
Flea beetles Low May, Jun, Jul
Slugs Moderate May, Jun, Jul, Aug
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

Wind & Microclimate in Bethel Census Area

Quick context: Why care about wind? Above about 10 mph, evaporation jumps and pollinators struggle to land on flowers. Bethel Census Area's 7.5 mph average means you can plant tall crops without much support, but it doesn't mean ignore wind — a 20+ mph storm still snaps unstaked tomatoes.

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

Seasonal Wind Speed

Spring: 12 mph   Summer: 8 mph

Fall: 10 mph   Winter: 12 mph

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

Windbreak Benefit

5.4/10

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

Frost Pocket Risk

High

Hilly terrain with 1,197 ft of elevation range — cold air pools in low spots. Avoid planting frost-sensitive crops in valleys.

Rainwater Harvesting in Bethel Census Area

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

What this means for you: Rainwater scales linearly with roof area. A 2,000 sq ft roof in Bethel Census Area captures ~1,200 gallons per 1" of rain — given 51" annual rainfall, that's thousands of gallons a year if you have storage to hold it.

Annual Collection

25,268 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 50.7 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 25,268 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 Bethel Census Area

Soil Type

Silt Loam

Soil pH 5.2–6.3 · 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

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

Season Tips

122-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 22-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 Bethel Census Area

95 vegetables that grow well in Zone 4a with planting dates for Bethel Census Area.

Show all 95 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Apr 10 Jun 5 Jun 12 Sep 4 – Oct 9 80–100
Amaranth Mar 20 Jun 5 Jun 12 Sep 11 – Oct 30 90–120
Arugula Apr 10 May 15 May 22 Jun 29 Jun 26 – Aug 28 30–50
Asparagus Jun 5 730–1095
Beets May 15 Jun 29 Jul 10 – Aug 7 50–70
Belgian Endive Apr 10 May 15 May 22 Jun 29 Sep 11 – Oct 16 110–150
Black Beans Jun 5 Sep 4 – Oct 23 90–120
Bok Choy Apr 10 May 15 May 22 Jun 29 Jul 3 – Aug 7 40–60
Broccoli Apr 10 May 15 May 22 Jun 29 Jul 24 – Sep 4 60–90
Broccoli Rabe Apr 10 May 15 May 22 Jun 29 Jul 3 – Aug 7 40–60
Brussels Sprouts Apr 10 May 15 May 22 Jun 29 Aug 21 – Oct 16 90–130
Butternut Squash Apr 10 Jun 5 Jun 12 Sep 11 – Oct 16 85–110
Cabbage Apr 10 May 15 May 22 Jun 29 Jul 24 – Sep 18 60–100
Carrots May 15 Jun 29 Jul 17 – Aug 21 60–80
Cauliflower Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 18 55–100
Celeriac Apr 10 May 15 May 22 Jun 29 Sep 4 – Oct 9 100–120
Celery Apr 10 May 15 May 22 Jun 29 Aug 14 – Oct 9 80–120
Celtuce Apr 10 May 15 May 22 Jun 29 Jul 24 – Sep 4 60–90
Chard Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 4 50–60
Chickpeas Apr 10 May 15 May 22 Jun 29 Aug 14 – Sep 25 80–110
Chicory Apr 10 May 15 May 22 Jun 29 Jul 24 – Sep 4 60–85
Chinese Cabbage Apr 10 May 15 May 22 Jun 29 Jul 17 – Aug 14 50–70
Christmas Lima Beans Mar 20 Jun 5 Jun 12 Sep 4 – Oct 9 80–100
Collard Greens Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 18 55–75
Corn Jun 5 Aug 7 – Oct 2 60–100
Cress Apr 10 May 15 May 22 Jun 29 Jun 5 – Jun 26 14–21
Crookneck Squash Apr 10 Jun 5 Jun 12 Jul 31 – Aug 28 45–60
Crosne May 15 Jun 29 Oct 16 – Oct 9 150–200
Cucumber Apr 10 Jun 5 Jun 12 Aug 7 – Oct 2 50–70
Daikon May 15 Jun 29 Jul 10 – Aug 7 50–70
Delicata Squash Apr 10 Jun 5 Jun 12 Sep 4 – Oct 9 80–100
Edamame Jun 5 Aug 21 – Oct 2 75–100
Endive Apr 10 May 15 May 22 Jun 29 Jul 10 – Aug 14 45–65
Escarole Apr 10 May 15 May 22 Jun 29 Jul 17 – Aug 14 50–70
Fava Beans Apr 10 May 15 May 22 Jun 29 Aug 7 – Sep 18 75–100
Fennel Mar 20 Jun 5 Jun 12 Aug 14 – Sep 25 60–90
Garlic Aug 10 Nov 9 – Jan 4 90–240
Green Beans Jun 5 Jul 31 – Sep 25 50–65
Horseradish Jun 5 Oct 9 – Oct 30 120–180
Hubbard Squash Apr 10 Jun 5 Jun 12 Sep 25 – Oct 30 100–120
Kabocha Apr 10 Jun 5 Jun 12 Sep 11 – Oct 9 85–100
Kai Lan Apr 10 May 15 May 22 Jun 29 Jul 10 – Aug 7 45–60
Kale Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 11 50–70
Kidney Beans Jun 5 Sep 4 – Oct 9 85–110
Kohlrabi Apr 10 May 15 May 22 Jun 29 Jul 10 – Aug 14 45–65
Komatsuna Apr 10 May 15 May 22 Jun 29 Jun 26 – Jul 31 35–50
Leeks Apr 10 May 15 May 22 Jun 29 Aug 21 – Oct 16 90–150
Lentils Apr 10 May 15 May 22 Jun 29 Aug 14 – Sep 25 80–110
Lettuce Apr 10 May 15 May 22 Jun 29 Jun 26 – Sep 4 30–60
Lima Beans Jun 5 Aug 7 – Sep 18 60–90
Mache Apr 10 May 15 May 22 Jun 29 Jul 3 – Aug 7 40–60
Melon Apr 10 Jun 5 Jun 12 Aug 21 – Oct 9 70–100
Microgreens Apr 10 May 15 May 22 Jun 29 May 29 – Jun 26 7–21
Mitsuba Apr 10 May 15 May 15 Jun 29 Jul 10 – Sep 4 50–70
Mizuna Apr 10 May 15 May 22 Jun 29 Jun 26 – Jul 24 30–45
Mustard Greens Apr 10 May 15 May 22 Jun 29 Jun 26 – Aug 28 30–50
Napa Cabbage Apr 10 May 15 May 22 Jun 29 Jul 17 – Aug 21 55–75
Onion Apr 10 May 15 May 22 Jun 29 Aug 21 – Oct 9 90–120
Pac Choi Apr 10 May 15 May 22 Jun 29 Jul 3 – Jul 31 40–55
Parsnip May 15 Jun 29 Aug 28 – Oct 9 100–130
Patty Pan Squash Apr 10 Jun 5 Jun 12 Jul 31 – Aug 28 45–60
Peas Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 11 55–70
Peppers Mar 6 Jun 5 Jun 12 Aug 14 – Oct 23 60–90
Pole Beans Mar 20 Jun 5 Jun 12 Aug 7 – Oct 2 55–70
Potatoes Mar 20 Jun 5 Jun 12 Aug 21 – Oct 30 70–120
Pumpkin Apr 10 Jun 5 Jun 12 Sep 11 – Oct 30 85–120
Purslane Apr 10 May 15 May 22 Jun 29 Jul 3 – Aug 7 40–60
Radicchio Apr 10 May 15 May 22 Jun 29 Jul 24 – Aug 28 60–80
Radish May 15 Jun 29 Jun 12 – Jul 3 22–35
Rhubarb Jun 19 365–730
Romanesco Apr 10 May 15 May 22 Jun 29 Aug 7 – Sep 18 75–100
Rutabaga May 15 Jun 29 Aug 7 – Sep 11 80–100
Salsify May 15 Jun 29 Aug 28 – Oct 9 100–130
Savoy Cabbage Apr 10 May 15 May 22 Jun 29 Jul 31 – Sep 25 70–110
Scallions Apr 10 May 15 May 22 Jun 29 Jul 17 – Aug 14 50–70
Scarlet Runner Beans Mar 20 Jun 5 Jun 12 Aug 14 – Sep 18 60–80
Shallot Apr 10 May 15 May 22 Jun 29 Aug 21 – Oct 9 90–120
Shiso Mar 27 May 29 Jun 12 Aug 7 – Oct 2 50–70
Snap Peas Mar 20 Jun 5 Jun 12 Aug 7 – Oct 2 55–70
Snow Peas Apr 10 May 15 May 22 Jun 29 Jul 17 – Sep 11 50–65
Soybeans Jun 5 Aug 28 – Oct 23 80–120
Spaghetti Squash Apr 10 Jun 5 Jun 12 Sep 11 – Oct 9 85–100
Spinach Apr 10 May 15 May 22 Jun 29 Jun 26 – Aug 28 35–50
Squash (Summer) Apr 10 Jun 5 Jun 12 Jul 31 – Oct 2 45–65
Squash (Winter) Apr 10 Jun 5 Jun 12 Sep 4 – Oct 30 80–120
Sunchoke Jun 5 Sep 25 – Oct 30 110–150
Sweet Corn Jun 5 Aug 7 – Sep 18 60–90
Tatsoi Apr 10 May 15 May 22 Jun 29 Jun 26 – Jul 31 35–50
Tomatillo Mar 20 Jun 5 Jun 12 Aug 14 – Oct 23 60–85
Tomatoes Mar 20 Jun 5 Jun 12 Aug 14 – Oct 23 60–85
Turnip May 15 Jun 29 Jun 26 – Jul 31 40–60
Watercress Apr 10 May 15 May 22 Jun 29 Jul 3 – Aug 7 40–60
Watermelon Apr 10 Jun 5 Jun 12 Aug 21 – Oct 9 70–100
Wax Beans Jun 5 Jul 31 – Sep 25 50–65
Zucchini Apr 10 Jun 5 Jun 12 Jul 31 – Sep 25 45–60

🍓 Fruits to Grow in Bethel Census Area

22 fruits that grow well in Zone 4a with planting dates for Bethel Census Area.

Show all 22 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Jun 19 Sep 18 – Nov 13 90–180
Aronia Jun 19 730–1095
Blueberries Jun 19 730–1095
Cantaloupe Jun 19 Aug 28 – Oct 2 70–90
Cranberries Jun 19 730–1095
Currants Jun 19 730–1095
Elderberries Jun 19 730–1095
Goji Berries Jun 19 730–1095
Gooseberries Jun 19 730–1095
Grapes Jun 19 730–1095
Ground Cherry Jun 19 Aug 28 – Oct 23 65–80
Hardy Kiwi Jun 19 1095–1825
Haskaps Jun 19 730–1095
Honeydew Jun 19 Sep 11 – Oct 23 80–110
Jostaberry Jun 19 730–1095
Lingonberries Jun 19 730–1095
Medlar Jun 19 1095–1825
Mulberries Jun 19 730–1825
Persimmon Jun 19 1095–2555
Raspberries Jun 19 365–730
Serviceberries Jun 19 730–1095
Strawberries Jun 19 Sep 18 – Nov 13 90–365

🌿 Herbs to Grow in Bethel Census Area

30 herbs that grow well in Zone 4a with planting dates for Bethel Census Area.

Show all 30 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Apr 10 May 15 May 15 Jun 29 365–730
Anise Apr 10 May 15 May 15 Jun 29 Aug 14 – Oct 9 90–120
Basil Mar 27 May 29 Jun 12 Aug 7 – Oct 9 50–75
Bee Balm May 29 Aug 28 – Oct 23 90–120
Borage Apr 10 May 15 May 15 Jun 29 Jul 10 – Aug 28 50–60
Caraway Apr 10 May 15 May 15 Jun 29 365–450
Catnip May 29 Jul 31 – Oct 2 60–80
Chamomile Apr 10 May 15 May 15 Jun 29 Jul 17 – Sep 25 60–90
Chervil Apr 10 May 15 May 15 Jun 29 Jun 26 – Aug 28 40–60
Chives May 29 Jul 31 – Oct 9 60–90
Cilantro Apr 10 May 15 May 15 Jun 29 Jun 26 – Aug 28 40–60
Comfrey May 29 Jul 31 – Oct 9 60–90
Dill Apr 10 May 15 May 15 Jun 29 Jun 26 – Aug 28 40–60
Fennel (herb) Apr 10 May 15 May 15 Jun 29 Jul 17 – Sep 25 60–90
Garlic Chives May 29 Jul 31 – Oct 9 60–90
Horehound May 29 Aug 14 – Oct 9 75–90
Hyssop May 29 Aug 7 – Oct 9 70–90
Lemon Balm May 29 Jul 31 – Sep 18 60–70
Lovage May 29 Aug 7 – Oct 9 70–90
Mint May 29 Jul 31 – Oct 9 60–90
Oregano May 29 Jul 31 – Oct 9 60–90
Parsley Apr 10 May 15 May 15 Jun 29 Jul 17 – Sep 18 60–80
Rue May 29 Aug 7 – Oct 9 70–90
Sage May 29 Aug 14 – Oct 9 75–90
Savory May 29 Jul 24 – Sep 18 50–70
Sorrel Apr 10 May 15 May 15 Jun 29 Jun 26 – Aug 28 40–60
Tarragon May 29 Jul 31 – Oct 9 60–90
Thai Basil Mar 27 May 29 Jun 12 Aug 7 – Oct 9 50–75
Thyme May 29 Aug 7 – Oct 9 70–90
Valerian May 29 Oct 2 – Oct 23 120–180

🌸 Flowers to Grow in Bethel Census Area

49 flowers that grow well in Zone 4a with planting dates for Bethel Census Area.

Show all 49 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 27 May 29 May 29 Jul 24 – Oct 2 60–75
Alliums Aug 10 Sep 21 – Oct 12 28–42
Astilbe Mar 13 Jun 5 Aug 28 – Oct 23 70–100
Bachelor's Button Apr 3 May 8 May 22 Jul 24 – Sep 25 60–90
Begonias Mar 6 Jun 5 Aug 14 – Oct 16 70–90
Black-eyed Susan Mar 13 May 22 Jun 5 Aug 28 – Nov 6 60–80
Bleeding Hearts Mar 13 Jun 5 Jul 31 – Sep 11 60–90
Calendula Apr 3 May 8 May 22 Jul 10 – Sep 25 50–70
Celosia Apr 10 Jun 5 Jun 5 Aug 7 – Oct 23 60–90
Columbine Mar 13 Jun 5 Jun 5 Jul 31 – Sep 11 70–100
Coreopsis Mar 13 May 29 Jun 5 Aug 21 – Nov 6 60–80
Cosmos Apr 24 May 29 May 29 Aug 7 – Oct 23 60–90
Crocus Aug 10 Jun 15 – Jul 6 10–20
Daffodils Aug 10 Jun 22 – Jul 13 20–40
Dahlias Apr 24 Jun 5 Jun 5 Sep 4 – Nov 6 70–120
Daylily Mar 13 Jun 5 Sep 4 – Nov 6 60–90
Dianthus Mar 20 May 1 May 15 Jul 3 – Sep 4 60–80
Echinacea (Purple Coneflower) Mar 13 Jun 5 Jun 5 Sep 4 – Nov 6 70–90
Foxglove Mar 13 Jun 5 Jun 5 Jul 31 – Sep 11 80–120
Gaillardia (Blanket Flower) Mar 27 Jun 5 Jun 5 Aug 14 – Nov 13 70–100
Geraniums Mar 6 Jun 5 Aug 14 – Oct 16 70–100
Gladiolus May 29 May 29 Aug 28 – Oct 30 70–100
Hostas Mar 6 Jun 5 Sep 4 – Nov 6 60–90
Hyacinths Aug 10 Jul 13 – Aug 3 14–28
Hydrangeas Mar 6 Jun 5 Aug 28 – Oct 23 90–150
Impatiens Mar 20 Jun 5 Aug 21 – Oct 16 60–75
Irises Division Jun 5 Jul 31 – Aug 28 60–100
Larkspur Apr 17 Jun 26 – Aug 7 60–90
Lilies Division Jun 5 Aug 28 – Oct 30 70–120
Lobelia Mar 13 May 22 Jul 17 – Sep 11 70–80
Lupine Mar 13 Jun 5 Jun 5 Jul 31 – Sep 11 75–100
Marigolds Apr 10 Jun 5 Jun 5 Jul 31 – Oct 16 50–70
Nasturtium Apr 24 Jun 5 Jun 5 Jul 31 – Oct 16 55–65
Pansy Mar 6 May 22 Jul 17 – Sep 4 70–90
Peonies Division Jun 5 Aug 14 – Sep 18 90–120
Petunia Mar 20 Jun 5 Aug 21 – Oct 23 70–90
Phlox Mar 13 Jun 5 Jun 5 Aug 28 – Oct 30 80–110
Portulaca Apr 10 Jun 5 Jun 5 Jul 24 – Oct 2 50–70
Roses Mar 6 Jun 5 Aug 28 – Nov 6 90–180
Salvia Mar 13 Jun 5 Aug 14 – Oct 16 70–90
Sedum (Stonecrop) Mar 13 Jun 5 Oct 9 – Nov 27 60–90
Snapdragon Mar 6 May 22 Jul 31 – Sep 25 70–100
Sunflower May 1 Jun 5 Jun 5 Aug 28 – Oct 23 70–100
Sweet Alyssum Mar 27 May 15 May 22 Jul 3 – Sep 4 45–60
Sweet Pea Apr 3 Apr 17 May 22 Aug 14 – Sep 25 65–85
Tulips Aug 10 Jul 6 – Jul 27 15–30
Vinca (Annual) Mar 6 Jun 5 Aug 14 – Oct 16 70–90
Yarrow Mar 13 May 22 Jun 5 Aug 21 – Nov 6 60–90
Zinnia Apr 24 Jun 5 Jun 5 Aug 14 – Oct 23 60–70
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Monthly Planting Guide for Bethel Census Area

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Bethel Census Area.

Frequently Asked Questions

What planting zone is Bethel Census Area, AK?

Bethel Census Area is in USDA Hardiness Zone 4a. 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 Bethel Census Area, AK?

Based on 31 years of NOAA weather station data, the median last spring frost in Bethel Census Area falls around May 22. In 8 out of 10 years, last frost lands between May 8 and June 3 — a 26-day window of variability. Use June 3 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Bethel Census Area, AK?

The median first fall frost in Bethel Census Area arrives around September 21. In cold years it can arrive as early as August 31; 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 Bethel Census Area?

Bethel Census Area has a frost-free growing season of approximately 122 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 2.32 days per decade.

What is the soil like in Bethel Census Area for gardening?

Bethel Census Area has predominantly Silt Loam soil with a pH range of 5.2–6.3 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 Bethel Census Area?

Bethel Census Area 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 Bethel Census Area a good location for home gardening?

Bethel Census Area scores 55/100 (Moderate) 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 1 weather station in or near Bethel Census Area (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: June 2026.

Sources & credits

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