Bethel Census Area, AK — Planting Guide
Bethel Census Area is in USDA Zone 2a. 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
2a (-50°F to -45°F min)
❄️ Last Frost
May 22
🍂 First Frost
September 21
📅 Growing Season
122 days
⛰️ Elevation
1,369 ft
🌧️ Annual Rainfall
50.7 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering 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
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 |
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.
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
Bethel Census Area presents some gardening challenges. Choose adapted varieties and plan around frost dates.
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.
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.
Services Available in Bethel Census Area
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.
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
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.
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
| Month | Daylight Hours | Peak Sun Hours | Day 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 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 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.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time 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.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
Moderate — watch for mildew and blight during wet periods.
Seasonal Risk
View 4 common pests in your area
| Pest | Risk Level | Peak 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
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 Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
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.
Free Garden Planner
Plan your entire garden season — organize planting dates, track what you're growing, and know exactly when to start seeds, transplant, and harvest.
Recommended for Your Garden
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
Get instant, accurate soil pH readings to fine-tune your amendments.
Boost soil fertility and structure with rich, well-aged organic compost.
🥬 Vegetables to Grow in Bethel Census Area
38 vegetables that grow well in Zone 2a with planting dates for Bethel Census Area.
Show all 38 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Amaranth | Mar 20 | Jun 5 | Jun 12 | Sep 11 – Oct 30 | 90–120 |
| Beets | — | May 15 | — | Jul 10 – Aug 7 | 50–70 |
| Bok Choy | Apr 10 | May 15 | May 22 | Jul 3 – Aug 7 | 40–60 |
| Broccoli | Apr 10 | May 15 | May 22 | Jul 24 – Sep 4 | 60–90 |
| Broccoli Rabe | Apr 10 | May 15 | May 22 | Jul 3 – Aug 7 | 40–60 |
| Brussels Sprouts | Apr 10 | May 15 | May 22 | Aug 21 – Oct 16 | 90–130 |
| Cabbage | Apr 10 | May 15 | May 22 | Jul 24 – Sep 18 | 60–100 |
| Cauliflower | Apr 10 | May 15 | May 22 | Jul 17 – Sep 18 | 55–100 |
| Celery | Apr 10 | May 15 | May 22 | Aug 14 – Oct 9 | 80–120 |
| Chard | Apr 10 | May 15 | May 22 | Jul 17 – Sep 4 | 50–60 |
| Chinese Cabbage | Apr 10 | May 15 | May 22 | Jul 17 – Aug 14 | 50–70 |
| Collard Greens | Apr 10 | May 15 | May 22 | Jul 17 – Sep 18 | 55–75 |
| Cress | Apr 10 | May 15 | May 22 | Jun 5 – Jun 26 | 14–21 |
| Daikon | — | May 15 | — | Jul 10 – Aug 7 | 50–70 |
| Fava Beans | Apr 10 | May 15 | May 22 | Aug 7 – Sep 18 | 75–100 |
| Kai Lan | Apr 10 | May 15 | May 22 | Jul 10 – Aug 7 | 45–60 |
| Kale | Apr 10 | May 15 | May 22 | Jul 17 – Sep 11 | 50–70 |
| Kohlrabi | Apr 10 | May 15 | May 22 | Jul 10 – Aug 14 | 45–65 |
| Komatsuna | Apr 10 | May 15 | May 22 | Jun 26 – Jul 31 | 35–50 |
| Lentils | Apr 10 | May 15 | May 22 | Aug 14 – Sep 25 | 80–110 |
| Lettuce | Apr 10 | May 15 | May 22 | Jun 26 – Sep 4 | 30–60 |
| Mache | Apr 10 | May 15 | May 22 | Jul 3 – Aug 7 | 40–60 |
| Microgreens | Apr 10 | May 15 | May 22 | May 29 – Jun 26 | 7–21 |
| Mustard Greens | Apr 10 | May 15 | May 22 | Jun 26 – Aug 28 | 30–50 |
| Napa Cabbage | Apr 10 | May 15 | May 22 | Jul 17 – Aug 21 | 55–75 |
| Pac Choi | Apr 10 | May 15 | May 22 | Jul 3 – Jul 31 | 40–55 |
| Parsnip | — | May 15 | — | Aug 28 – Oct 9 | 100–130 |
| Peas | Apr 10 | May 15 | May 22 | Jul 17 – Sep 11 | 55–70 |
| Purslane | Apr 10 | May 15 | May 22 | Jul 3 – Aug 7 | 40–60 |
| Radish | — | May 15 | — | Jun 12 – Jul 3 | 22–35 |
| Rutabaga | — | May 15 | — | Aug 7 – Sep 11 | 80–100 |
| Savoy Cabbage | Apr 10 | May 15 | May 22 | Jul 31 – Sep 25 | 70–110 |
| Snap Peas | Mar 20 | Jun 5 | Jun 12 | Aug 7 – Oct 2 | 55–70 |
| Snow Peas | Apr 10 | May 15 | May 22 | Jul 17 – Sep 11 | 50–65 |
| Spinach | Apr 10 | May 15 | May 22 | Jun 26 – Aug 28 | 35–50 |
| Sunflower | Mar 20 | Jun 5 | Jun 12 | Aug 21 – Oct 9 | 70–100 |
| Tatsoi | Apr 10 | May 15 | May 22 | Jun 26 – Jul 31 | 35–50 |
| Turnip | — | May 15 | — | Jun 26 – Jul 31 | 40–60 |
🍓 Fruits to Grow in Bethel Census Area
4 fruits that grow well in Zone 2a with planting dates for Bethel Census Area.
Show all 4 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Cranberries | — | — | Jun 19 | — | 730–1095 |
| Haskaps | — | — | Jun 19 | — | 730–1095 |
| Lingonberries | — | — | Jun 19 | — | 730–1095 |
| Serviceberries | — | — | Jun 19 | — | 730–1095 |
🌿 Herbs to Grow in Bethel Census Area
3 herbs that grow well in Zone 2a with planting dates for Bethel Census Area.
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 2a. 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.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Bethel Census Area gardeners in Zone 2a organize planting dates, track what's growing, and never miss a planting window.
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