Ketchikan Gateway Borough, AK — Planting Guide
May in the garden — Ketchikan Gateway Borough, Alaska
We've pulled the most time-sensitive tasks for Ketchikan Gateway Borough, Alaska this May and put them front and centre. Tackle them in order.
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Get basil, cucumber, and peppers in the ground
Frost risk is low now in Ketchikan Gateway Borough, Alaska. If you've been covering beds overnight, you can stop.
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Plant basil, cucumber, and green beans from seed, right in the garden
Rake a smooth bed, make a shallow furrow, drop seeds at the spacing on the packet, water gently, walk away.
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Start cucumber, kale, and lettuce under lights
These need a head start before your last frost (April 25). Sow into cells now so you're ready to transplant in a few weeks.
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Basket week: lettuce, radish, and arugula
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
Get ahead of June
- Starting indoors: basil, peppers, and pole beans
- First harvests: carrots, green beans, and kale
Ketchikan Gateway Borough is in USDA Zone 7b. The average last spring frost is April 25 and the first fall frost is October 19, giving you a growing season of approximately 177 days.
At an elevation of 1,212 ft, Ketchikan Gateway Borough receives approximately 57.5 in of rainfall annually. Summer highs average 65°F with winter lows around -16°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 35 days year to year — ranging from April 8 in warm years to May 13 in cold years. The growing season is trending longer by about 5.32 days per decade. Ketchikan Gateway Borough scores 50/100 (Moderate) on the Microclimate Index.
🌡️ Zone
7b (°F to °F min)
❄️ Last Frost
April 25
🍂 First Frost
October 19
📅 Growing Season
177 days
⛰️ Elevation
1,212 ft
🌧️ Annual Rainfall
57.5 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 | 2.8 in | 6 days | — | None |
| Feb | 2.6 in | 4 days | — | None |
| Mar | 1.8 in | 5 days | 2.5 in | High |
| Apr | 2 in | 5 days | 2.3 in | High |
| May | 2.4 in | 6 days | 1.9 in | High |
| Jun | 4.5 in | 7 days | — | Low |
| Jul | 6.6 in | 10 days | — | Low |
| Aug | 9.5 in | 12 days | — | Low |
| Sep | 11 in | 14 days | — | Low |
| Oct | 6.6 in | 10 days | — | Low |
| Nov | 3.8 in | 7 days | — | None |
| Dec | 3.9 in | 7 days | — | None |
Annual total: 57.5 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.
Ketchikan Gateway Borough Soil Profile
Soil Type
Silt Loam
Soil pH
5-6.7
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) | May 13 | Nov 2 | 173 days |
| Cautious | May 5 | Oct 30 | 178 days |
| Average year | Apr 25 | Oct 19 | 177 days |
| Optimistic | Apr 18 | Oct 10 | 175 days |
| Aggressive (risky) | Apr 8 | Oct 1 | 176 days |
Not very — frost dates can vary by ±35 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 5.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Ketchikan Gateway Borough presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Ketchikan Gateway Borough
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 Ketchikan Gateway Borough's climate and soil.
County Extension Office
Ketchikan Gateway Borough 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 Ketchikan Gateway Borough
Finding local nurseries & garden centers in Ketchikan Gateway Borough
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Ketchikan Gateway Borough'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 Ketchikan Gateway Borough AK" or "garden center Ketchikan Gateway Borough" 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 Ketchikan Gateway Borough AK" or check your extension office and local parks department. Facebook groups like "Ketchikan Gateway Borough 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 6 more succession options
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
17.1 hours
Summer solstice daylight
Shortest Day
6.9 hours
Winter solstice daylight
Peak Sun Hours
8.7 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.
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 | 7.4 hr | 2.2 hr | Short day |
| February | 9.3 hr | 3.4 hr | Short day |
| March | 11.5 hr | 5 hr | Short day |
| April | 13.9 hr | 6.2 hr | Neutral |
| May | 15.9 hr | 6.8 hr | Long day |
| June | 17.1 hr | 8.2 hr | Long day |
| July | 16.6 hr | 8.7 hr | Long day |
| August | 14.8 hr | 6.7 hr | Long day |
| September | 12.4 hr | 4.9 hr | Neutral |
| October | 10.1 hr | 3.7 hr | Short day |
| November | 8 hr | 2.3 hr | Short day |
| December | 6.9 hr | 1.7 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 May through Oct.
Best Month to Compost
Jun
Microbial activity peaks when soil is warm.
Active Composting
8 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 35°F | 43°F | ❄️ Dormant | ~36 weeks |
| Feb | 36°F | 41°F | ❄️ Dormant | ~36 weeks |
| Mar | 41°F | 45°F | 🐢 Slow | ~24 weeks |
| Apr | 56°F | 53°F | ♻️ Active | ~14 weeks |
| May | 64°F | 63°F | ♻️ Active | ~14 weeks |
| Jun | 75°F | 69°F | 🔥 Peak | ~8 weeks |
| Jul | 81°F | 76°F | 🔥 Peak | ~8 weeks |
| Aug | 85°F | 79°F | 🔥 Peak | ~8 weeks |
| Sep | 79°F | 76°F | 🔥 Peak | ~8 weeks |
| Oct | 65°F | 68°F | ♻️ Active | ~14 weeks |
| Nov | 51°F | 57°F | ♻️ Active | ~14 weeks |
| Dec | 42°F | 49°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Ketchikan Gateway Borough
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
High fungal/bacterial risk. Space plants for airflow, water at soil level.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
| Japanese beetles | Moderate | Jun, Jul, Aug |
| Squash vine borers | Moderate | May, Jun, Jul |
| Stink bugs | High | May, Jun, Jul, Aug, Sep |
| Whiteflies | Moderate | Jun, Jul, Aug, Sep |
| Spider mites | Moderate | Jul, Aug |
Organic pest management tips
- Install physical barriers: floating row covers, copper tape for slugs, mesh netting
- Apply Bt (Bacillus thuringiensis) for caterpillar control — safe for beneficial insects
- Use kaolin clay spray to deter a wide range of insects on fruiting crops
- Release beneficial insects: ladybugs for aphids, parasitic wasps for caterpillars
- Apply neem oil weekly during high-pressure months
- Mulch heavily (3-4 inches) to reduce soil-borne disease splash
Cover Crops for Ketchikan Gateway Borough
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Apr 30 | Aug 17 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | May 1 | Aug 24 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 29 | Aug 10 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 27 | Aug 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 10 | Sep 28 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Aug 27 | Apr 11 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 25 | Apr 4 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 30 | Apr 11 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jul 27 | Apr 4 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 17 | Apr 4 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 13 | Apr 11 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jul 14 | Apr 4 | — | 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: 12 mph
Prevailing wind: N. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.5/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (772 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
28,658 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 57.5 inches of rain per year
- A 1,000 sq ft roof can collect roughly 28,658 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 Ketchikan Gateway Borough
Soil Type
Silt Loam
Soil pH 5–6.7 · Poorly Drained drainage
Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.
Watering Needs
Drought stress: 1.5/10
Ketchikan Gateway Borough has very low drought pressure. Natural rainfall usually meets garden needs — water only during extended dry spells.
Season Tips
177-day frost-free season
Start warm-season crops indoors and focus on short-season varieties. Cold frames extend your season by 3–4 weeks in fall.
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.
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 Ketchikan Gateway Borough
113 vegetables that grow well in Zone 7b with planting dates for Ketchikan Gateway Borough.
Show all 113 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 28 | May 2 | May 9 | Aug 1 – Sep 5 | 80–100 |
| Amaranth | Mar 7 | May 2 | May 9 | Aug 8 – Sep 26 | 90–120 |
| Artichoke | — | — | May 9 | Sep 12 – Nov 21 | 120–180 |
| Arugula | Mar 21 | Apr 11 | Apr 25 | May 30 – Aug 1 | 30–50 |
| Asparagus | — | — | May 9 | — | 730–1095 |
| Beets | — | Apr 11 | — | Jun 6 – Jul 4 | 50–70 |
| Belgian Endive | Mar 21 | Apr 11 | Apr 25 | Aug 15 – Oct 10 | 110–150 |
| Bitter Melon | Mar 7 | May 2 | May 9 | Jul 11 – Aug 22 | 60–90 |
| Black Beans | — | May 2 | — | Aug 1 – Sep 19 | 90–120 |
| Bok Choy | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 11 | 40–60 |
| Broccoli | Mar 21 | Apr 11 | Apr 25 | Jun 27 – Aug 8 | 60–90 |
| Broccoli Rabe | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 11 | 40–60 |
| Brussels Sprouts | Mar 21 | Apr 11 | Apr 25 | Jul 25 – Sep 19 | 90–130 |
| Butternut Squash | Mar 28 | May 2 | May 9 | Aug 8 – Sep 12 | 85–110 |
| Cabbage | Mar 21 | Apr 11 | Apr 25 | Jun 27 – Aug 22 | 60–100 |
| Calabash | Mar 7 | May 2 | May 9 | Aug 1 – Sep 26 | 80–120 |
| Cardoon | — | — | May 9 | Sep 12 – Oct 24 | 120–150 |
| Carrots | — | Apr 11 | — | Jun 13 – Jul 18 | 60–80 |
| Cauliflower | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 22 | 55–100 |
| Celeriac | Mar 21 | Apr 11 | Apr 25 | Aug 8 – Sep 12 | 100–120 |
| Celery | Mar 21 | Apr 11 | Apr 25 | Jul 18 – Sep 12 | 80–120 |
| Celtuce | Mar 21 | Apr 11 | Apr 25 | Jun 27 – Aug 8 | 60–90 |
| Chard | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 8 | 50–60 |
| Chayote | Mar 7 | May 2 | May 9 | Sep 12 – Nov 21 | 120–180 |
| Chickpeas | Mar 21 | Apr 11 | Apr 25 | Jul 18 – Aug 29 | 80–110 |
| Chicory | Mar 21 | Apr 11 | Apr 25 | Jun 27 – Aug 8 | 60–85 |
| Chinese Cabbage | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Jul 18 | 50–70 |
| Christmas Lima Beans | Mar 7 | May 2 | May 9 | Aug 1 – Sep 5 | 80–100 |
| Collard Greens | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 22 | 55–75 |
| Corn | — | May 2 | — | Jul 4 – Aug 29 | 60–100 |
| Cowpeas | — | May 2 | — | Jul 4 – Aug 15 | 60–90 |
| Cress | Mar 21 | Apr 11 | Apr 25 | May 9 – May 30 | 14–21 |
| Crookneck Squash | Mar 28 | May 2 | May 9 | Jun 27 – Jul 25 | 45–60 |
| Crosne | — | Apr 11 | — | Sep 12 – Nov 14 | 150–200 |
| Cucumber | Mar 28 | May 2 | May 9 | Jul 4 – Aug 29 | 50–70 |
| Daikon | — | Apr 11 | — | Jun 6 – Jul 4 | 50–70 |
| Delicata Squash | Mar 28 | May 2 | May 9 | Aug 1 – Sep 5 | 80–100 |
| Edamame | — | May 2 | — | Jul 18 – Aug 29 | 75–100 |
| Eggplant | Feb 21 | May 2 | May 9 | Jul 18 – Sep 19 | 65–85 |
| Endive | Mar 21 | Apr 11 | Apr 25 | Jun 13 – Jul 18 | 45–65 |
| Escarole | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Jul 18 | 50–70 |
| Fava Beans | Mar 21 | Apr 11 | Apr 25 | Jul 11 – Aug 22 | 75–100 |
| Fennel | Mar 7 | May 2 | May 9 | Jul 11 – Aug 22 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Green Beans | — | May 2 | — | Jun 27 – Aug 22 | 50–65 |
| Horseradish | — | — | May 9 | Sep 12 – Nov 21 | 120–180 |
| Hot Peppers | Feb 21 | May 2 | May 9 | Jul 18 – Oct 24 | 70–120 |
| Hubbard Squash | Mar 28 | May 2 | May 9 | Aug 22 – Sep 26 | 100–120 |
| Jicama | Mar 7 | May 2 | May 9 | Sep 12 – Nov 21 | 120–180 |
| Kabocha | Mar 28 | May 2 | May 9 | Aug 8 – Sep 5 | 85–100 |
| Kai Lan | Mar 21 | Apr 11 | Apr 25 | Jun 13 – Jul 11 | 45–60 |
| Kale | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 15 | 50–70 |
| Kidney Beans | — | May 2 | — | Aug 1 – Sep 5 | 85–110 |
| Kohlrabi | Mar 21 | Apr 11 | Apr 25 | Jun 13 – Jul 18 | 45–65 |
| Komatsuna | Mar 21 | Apr 11 | Apr 25 | May 30 – Jul 4 | 35–50 |
| Leeks | Mar 21 | Apr 11 | Apr 25 | Jul 25 – Oct 10 | 90–150 |
| Lentils | Mar 21 | Apr 11 | Apr 25 | Jul 18 – Aug 29 | 80–110 |
| Lettuce | Mar 21 | Apr 11 | Apr 25 | May 30 – Aug 8 | 30–60 |
| Lima Beans | — | May 2 | — | Jul 4 – Aug 15 | 60–90 |
| Loofah | Mar 7 | May 2 | May 9 | Aug 22 – Oct 24 | 100–150 |
| Luffa | Mar 7 | May 2 | May 9 | Aug 8 – Oct 24 | 90–150 |
| Mache | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 11 | 40–60 |
| Malabar Spinach | Mar 7 | May 2 | May 9 | Jul 4 – Aug 1 | 55–70 |
| Melon | Mar 28 | May 2 | May 9 | Jul 18 – Sep 5 | 70–100 |
| Microgreens | Mar 21 | Apr 11 | Apr 25 | May 2 – May 30 | 7–21 |
| Mitsuba | Mar 21 | Apr 11 | Apr 18 | Jun 13 – Aug 8 | 50–70 |
| Mizuna | Mar 21 | Apr 11 | Apr 25 | May 30 – Jun 27 | 30–45 |
| Mustard Greens | Mar 21 | Apr 11 | Apr 25 | May 30 – Aug 1 | 30–50 |
| Napa Cabbage | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Jul 25 | 55–75 |
| New Zealand Spinach | Mar 7 | May 2 | May 9 | Jul 4 – Aug 1 | 55–70 |
| Okra | Mar 7 | May 2 | May 9 | Jul 4 – Aug 29 | 50–65 |
| Onion | Mar 21 | Apr 11 | Apr 25 | Jul 25 – Sep 12 | 90–120 |
| Pac Choi | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 4 | 40–55 |
| Parsnip | — | Apr 11 | — | Jul 25 – Sep 5 | 100–130 |
| Patty Pan Squash | Mar 28 | May 2 | May 9 | Jun 27 – Jul 25 | 45–60 |
| Peas | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 15 | 55–70 |
| Peppers | Feb 21 | May 2 | May 9 | Jul 11 – Sep 19 | 60–90 |
| Pole Beans | Mar 7 | May 2 | May 9 | Jul 4 – Aug 29 | 55–70 |
| Potatoes | Mar 7 | May 2 | May 9 | Jul 18 – Sep 26 | 70–120 |
| Pumpkin | Mar 28 | May 2 | May 9 | Aug 8 – Sep 26 | 85–120 |
| Purslane | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 11 | 40–60 |
| Radicchio | Mar 21 | Apr 11 | Apr 25 | Jun 27 – Aug 1 | 60–80 |
| Radish | — | Apr 11 | — | May 9 – May 30 | 22–35 |
| Rhubarb | — | — | May 16 | — | 365–730 |
| Romanesco | Mar 21 | Apr 11 | Apr 25 | Jul 11 – Aug 22 | 75–100 |
| Rutabaga | — | Apr 11 | — | Jul 4 – Aug 8 | 80–100 |
| Salsify | — | Apr 11 | — | Jul 25 – Sep 5 | 100–130 |
| Savoy Cabbage | Mar 21 | Apr 11 | Apr 25 | Jul 4 – Aug 29 | 70–110 |
| Scallions | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Jul 18 | 50–70 |
| Scarlet Runner Beans | Mar 7 | May 2 | May 9 | Jul 11 – Aug 15 | 60–80 |
| Shallot | Mar 21 | Apr 11 | Apr 25 | Jul 25 – Sep 12 | 90–120 |
| Shiso | Mar 7 | May 2 | May 9 | Jul 4 – Aug 29 | 50–70 |
| Snap Peas | Mar 7 | May 2 | May 9 | Jul 4 – Aug 29 | 55–70 |
| Snow Peas | Mar 21 | Apr 11 | Apr 25 | Jun 20 – Aug 15 | 50–65 |
| Soybeans | — | May 2 | — | Jul 25 – Sep 19 | 80–120 |
| Spaghetti Squash | Mar 28 | May 2 | May 9 | Aug 8 – Sep 5 | 85–100 |
| Spinach | Mar 21 | Apr 11 | Apr 25 | May 30 – Aug 1 | 35–50 |
| Squash (Summer) | Mar 28 | May 2 | May 9 | Jun 27 – Aug 29 | 45–65 |
| Squash (Winter) | Mar 28 | May 2 | May 9 | Aug 1 – Sep 26 | 80–120 |
| Sunchoke | — | — | May 9 | Aug 29 – Oct 24 | 110–150 |
| Sunflower | Mar 7 | May 2 | May 9 | Jul 18 – Sep 5 | 70–100 |
| Sweet Corn | — | May 2 | — | Jul 4 – Aug 15 | 60–90 |
| Sweet Potatoes | Mar 7 | May 2 | May 9 | Aug 8 – Sep 26 | 90–120 |
| Tatsoi | Mar 21 | Apr 11 | Apr 25 | May 30 – Jul 4 | 35–50 |
| Tomatillo | Mar 7 | May 2 | May 9 | Jul 11 – Sep 19 | 60–85 |
| Tomatoes | Mar 7 | May 2 | May 9 | Jul 11 – Sep 19 | 60–85 |
| Turnip | — | Apr 11 | — | May 23 – Jun 27 | 40–60 |
| Watercress | Mar 21 | Apr 11 | Apr 25 | Jun 6 – Jul 11 | 40–60 |
| Watermelon | Mar 28 | May 2 | May 9 | Jul 18 – Sep 5 | 70–100 |
| Wax Beans | — | May 2 | — | Jun 27 – Aug 22 | 50–65 |
| Winter Melon | Mar 7 | May 2 | May 9 | Aug 8 – Sep 26 | 90–120 |
| Yard Long Beans | Mar 7 | May 2 | May 9 | Jul 4 – Aug 15 | 55–80 |
| Zucchini | Mar 28 | May 2 | May 9 | Jun 27 – Aug 22 | 45–60 |
🍓 Fruits to Grow in Ketchikan Gateway Borough
31 fruits that grow well in Zone 7b with planting dates for Ketchikan Gateway Borough.
Show all 31 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 16 | Aug 15 – Nov 28 | 90–180 |
| Aronia | — | — | May 16 | — | 730–1095 |
| Blackberries | — | — | May 16 | — | 365–730 |
| Blueberries | — | — | May 16 | — | 730–1095 |
| Boysenberries | — | — | May 16 | — | 365–730 |
| Cantaloupe | — | — | May 16 | Jul 25 – Aug 29 | 70–90 |
| Che Fruit | — | — | May 16 | — | 1095–1825 |
| Cranberries | — | — | May 16 | — | 730–1095 |
| Currants | — | — | May 16 | — | 730–1095 |
| Elderberries | — | — | May 16 | — | 730–1095 |
| Figs | — | — | May 16 | — | 730–1825 |
| Goji Berries | — | — | May 16 | — | 730–1095 |
| Gooseberries | — | — | May 16 | — | 730–1095 |
| Grapes | — | — | May 16 | — | 730–1095 |
| Ground Cherry | — | — | May 16 | Jul 25 – Sep 19 | 65–80 |
| Hardy Kiwi | — | — | May 16 | — | 1095–1825 |
| Haskaps | — | — | May 16 | — | 730–1095 |
| Honeydew | — | — | May 16 | Aug 8 – Sep 19 | 80–110 |
| Jostaberry | — | — | May 16 | — | 730–1095 |
| Kiwi | — | — | May 16 | — | 1095–1825 |
| Lingonberries | — | — | May 16 | — | 730–1095 |
| Loquat | — | — | May 16 | — | 730–1825 |
| Medlar | — | — | May 16 | — | 1095–1825 |
| Mulberries | — | — | May 16 | — | 730–1825 |
| Pawpaw | — | — | May 16 | — | 1095–2555 |
| Persimmon | — | — | May 16 | — | 1095–2555 |
| Pomegranate | — | — | May 16 | — | 730–1095 |
| Quince | — | — | May 16 | — | 1095–1825 |
| Raspberries | — | — | May 16 | — | 365–730 |
| Serviceberries | — | — | May 16 | — | 730–1095 |
| Strawberries | — | — | May 16 | Aug 15 – Dec 26 | 90–365 |
🌿 Herbs to Grow in Ketchikan Gateway Borough
39 herbs that grow well in Zone 7b with planting dates for Ketchikan Gateway Borough.
Show all 39 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 21 | Apr 11 | Apr 18 | — | 365–730 |
| Anise | Mar 21 | Apr 11 | Apr 18 | Jul 18 – Oct 3 | 90–120 |
| Basil | Mar 7 | May 2 | May 9 | Jul 4 – Sep 5 | 50–75 |
| Bee Balm | — | — | May 2 | Aug 1 – Oct 17 | 90–120 |
| Borage | Mar 21 | Apr 11 | Apr 18 | Jun 13 – Aug 1 | 50–60 |
| Caraway | Mar 21 | Apr 11 | Apr 18 | — | 365–450 |
| Catnip | — | — | May 2 | Jul 4 – Sep 5 | 60–80 |
| Chamomile | Mar 21 | Apr 11 | Apr 18 | Jun 20 – Aug 29 | 60–90 |
| Chervil | Mar 21 | Apr 11 | Apr 18 | May 30 – Aug 1 | 40–60 |
| Chives | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Cilantro | Mar 21 | Apr 11 | Apr 18 | May 30 – Aug 1 | 40–60 |
| Comfrey | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Cumin | Mar 21 | Apr 11 | Apr 18 | Aug 1 – Oct 3 | 100–120 |
| Dill | Mar 21 | Apr 11 | Apr 18 | May 30 – Aug 1 | 40–60 |
| Echinacea | — | — | May 2 | Sep 5 – Dec 12 | 120–180 |
| Epazote | Mar 7 | May 2 | May 9 | Jun 27 – Aug 22 | 45–60 |
| Fennel (herb) | Mar 21 | Apr 11 | Apr 18 | Jun 20 – Aug 29 | 60–90 |
| Feverfew | — | — | May 2 | Aug 1 – Oct 17 | 90–120 |
| Garlic Chives | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Horehound | — | — | May 2 | Jul 18 – Sep 12 | 75–90 |
| Hyssop | — | — | May 2 | Jul 11 – Sep 12 | 70–90 |
| Lavender | — | — | May 2 | Aug 1 – Dec 12 | 90–200 |
| Lemon Balm | — | — | May 2 | Jul 4 – Aug 22 | 60–70 |
| Lemon Thyme | — | — | May 2 | Jul 11 – Sep 12 | 70–90 |
| Lovage | — | — | May 2 | Jul 11 – Sep 12 | 70–90 |
| Marjoram | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Mint | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Oregano | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Parsley | Mar 21 | Apr 11 | Apr 18 | Jun 20 – Aug 22 | 60–80 |
| Rosemary | — | — | May 2 | Jul 25 – Dec 12 | 80–180 |
| Rue | — | — | May 2 | Jul 11 – Sep 12 | 70–90 |
| Sage | — | — | May 2 | Jul 18 – Sep 12 | 75–90 |
| Savory | — | — | May 2 | Jun 27 – Aug 22 | 50–70 |
| Sorrel | Mar 21 | Apr 11 | Apr 18 | May 30 – Aug 1 | 40–60 |
| Tarragon | — | — | May 2 | Jul 4 – Sep 12 | 60–90 |
| Thai Basil | Mar 7 | May 2 | May 9 | Jul 4 – Sep 5 | 50–75 |
| Thyme | — | — | May 2 | Jul 11 – Sep 12 | 70–90 |
| Valerian | — | — | May 2 | Sep 5 – Dec 12 | 120–180 |
| Yarrow | — | — | May 2 | Aug 1 – Oct 17 | 90–120 |
Monthly Planting Guide for Ketchikan Gateway Borough
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Ketchikan Gateway Borough.
Frequently Asked Questions
What planting zone is Ketchikan Gateway Borough, AK?
Ketchikan Gateway Borough is in USDA Hardiness Zone 7b. 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 Ketchikan Gateway Borough, AK?
Based on 31 years of NOAA weather station data, the median last spring frost in Ketchikan Gateway Borough falls around April 25. In 8 out of 10 years, last frost lands between April 8 and May 13 — a 35-day window of variability. Use May 13 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Ketchikan Gateway Borough, AK?
The median first fall frost in Ketchikan Gateway Borough arrives around October 19. In cold years it can arrive as early as October 1; in mild years as late as November 2. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Ketchikan Gateway Borough?
Ketchikan Gateway Borough has a frost-free growing season of approximately 177 days. This is enough time for most warm-season crops including tomatoes, peppers, and squash with proper timing. Climate records show the growing season is trending longer by about 5.32 days per decade.
What is the soil like in Ketchikan Gateway Borough for gardening?
Ketchikan Gateway Borough has predominantly Silt Loam soil with a pH range of 5–6.7 and 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 Ketchikan Gateway Borough?
Ketchikan Gateway Borough 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 Ketchikan Gateway Borough a good location for home gardening?
Ketchikan Gateway Borough scores 50/100 (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.
Your Ketchikan Gateway Borough Garden Planner — Free
A 24-page printable planner built for Ketchikan Gateway Borough (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
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
- Full seed-starting + planting schedule with timing and spacing
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
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.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
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
- The 7-step hot-compost system from start to finish
- Bonus tools: troubleshooting chart, safety guide, monitoring log