Clallam County, WA — Planting Guide
Clallam County is in USDA Zone 8a. The average last spring frost is April 23 and the first fall frost is October 26, giving you a growing season of approximately 186 days.
At an elevation of 194 ft, Clallam County receives approximately 54.8 in of rainfall annually. Summer highs average 83°F with winter lows around 47°F. The predominant soil type is Silt Loam.
Based on 31 years of NOAA climate station data, the last frost date here varies by 37 days year to year — ranging from April 2 in warm years to May 9 in cold years. The growing season is trending shorter by about 0.79 days per decade. Clallam County scores 66/100 (Good) on the Microclimate Index.
🌡️ Zone
8a (10°F to 15°F min)
❄️ Last Frost
April 23
🍂 First Frost
October 26
📅 Growing Season
186 days
⛰️ Elevation
194 ft
🌧️ Annual Rainfall
54.8 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 | 8.9 in | 20 days | — | None |
| Feb | 5.5 in | 14 days | — | Low |
| Mar | 5.3 in | 14 days | — | Low |
| Apr | 4.6 in | 12 days | — | Low |
| May | 3 in | 9 days | 1.3 in | Moderate |
| Jun | 2.1 in | 6 days | 2.2 in | High |
| Jul | 0.8 in | 3 days | 3.5 in | Critical |
| Aug | 1.1 in | 2 days | 3.2 in | Critical |
| Sep | 2.5 in | 4 days | 1.8 in | High |
| Oct | 4 in | 11 days | 0.3 in | Low |
| Nov | 9.1 in | 18 days | — | Low |
| Dec | 7.9 in | 19 days | — | None |
Annual total: 54.8 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.
Clallam County Soil Profile
Soil Type
Silt Loam
Soil pH
5.7-6.8
Drainage
Well Drained
Frost Risk Probability
Based on 31 years of NOAA weather station data from 2 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 9 | Nov 9 | 184 days |
| Cautious | May 1 | Oct 30 | 182 days |
| Average year | Apr 23 | Oct 26 | 186 days |
| Optimistic | Apr 14 | Oct 18 | 187 days |
| Aggressive (risky) | Apr 2 | Oct 11 | 192 days |
Not very — frost dates can vary by ±37 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Slightly — seasons are trending a bit shorter (0.8 days/decade). Stay conservative with planting dates.
Gardening Difficulty Score
Clallam County offers good growing conditions. A little planning around frost dates goes a long way.
Local Gardening Help in Clallam County
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 Clallam County's climate and soil.
County Extension Office
Clallam County Washington State University Extension Extension Office
Phone: 509-335-2811
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 Clallam County
Finding local nurseries & garden centers in Clallam County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Clallam County'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 Clallam County WA" or "garden center Clallam County" 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 Clallam County WA" or check your extension office and local parks department. Facebook groups like "Clallam County Gardeners" or "Washington 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
15.8 hours
Summer solstice daylight
Shortest Day
8.2 hours
Winter solstice daylight
Peak Sun Hours
11.3 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 | 8.6 hr | 2.2 hr | Short day |
| February | 10 hr | 3.1 hr | Short day |
| March | 11.6 hr | 3.9 hr | Short day |
| April | 13.4 hr | 5.6 hr | Neutral |
| May | 15 hr | 7.4 hr | Long day |
| June | 15.8 hr | 8.5 hr | Long day |
| July | 15.5 hr | 11.3 hr | Long day |
| August | 14.1 hr | 9.5 hr | Long day |
| September | 12.3 hr | 7 hr | Neutral |
| October | 10.6 hr | 4 hr | Short day |
| November | 9 hr | 2.2 hr | Short day |
| December | 8.2 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 Apr through Nov.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
9 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 45°F | 51°F | 🐢 Slow | ~24 weeks |
| Feb | 43°F | 49°F | 🐢 Slow | ~24 weeks |
| Mar | 50°F | 53°F | ♻️ Active | ~14 weeks |
| Apr | 62°F | 60°F | ♻️ Active | ~14 weeks |
| May | 70°F | 68°F | 🔥 Peak | ~8 weeks |
| Jun | 80°F | 75°F | 🔥 Peak | ~8 weeks |
| Jul | 87°F | 84°F | 🔥 Peak | ~8 weeks |
| Aug | 90°F | 84°F | 🔥 Peak | ~8 weeks |
| Sep | 85°F | 81°F | 🔥 Peak | ~8 weeks |
| Oct | 70°F | 75°F | 🔥 Peak | ~8 weeks |
| Nov | 60°F | 66°F | ♻️ Active | ~14 weeks |
| Dec | 47°F | 56°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 Clallam County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
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, Nov |
| Squash vine borers | Moderate | May, Jun, Jul |
| Stink bugs | High | Apr, May, Jun, Jul, Aug, Sep, Oct |
| Whiteflies | Moderate | May, Jun, Jul, Aug, Sep, Oct |
| Spider mites | High | Jun, Jul, Aug, Sep |
| Fire ants | Low | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
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 Clallam County
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 | May 5 | Aug 31 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 23 | Aug 31 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | May 3 | Aug 17 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 29 | Aug 24 | ✓ 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 19 | 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 21 | Apr 9 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Aug 27 | Apr 9 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 31 | Apr 9 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Aug 2 | Apr 2 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Sep 27 | Apr 2 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 25 | Apr 2 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 3 | Apr 2 | — | 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: 13 mph Summer: 10 mph
Fall: 8 mph Winter: 13 mph
Prevailing wind: SW. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.8/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (438 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
27,312 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 1,000 gal tank.
Legal Status
Unrestricted
Rainwater harvesting is fully legal in your state with no restrictions.
Best Collection Months
Jan, Feb, Nov, Dec
Highest rainfall months — your barrels will fill up quickly during these months.
Months to Draw From Storage
Jul
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 54.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 27,312 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 Clallam County
Soil Type
Silt Loam
Soil pH 5.7–6.8 · Moderately Well Drained drainage
Good candidate for raised beds to maximise drainage and extend the season.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (54.8 in. annual rainfall)
Season Tips
186-day frost-free season
Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.
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 Clallam County
115 vegetables that grow well in Zone 8a with planting dates for Clallam County.
Show all 115 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 3 | 80–100 |
| Amaranth | Mar 5 | Apr 30 | May 7 | Aug 6 – Sep 24 | 90–120 |
| Artichoke | — | — | May 7 | Sep 10 – Nov 19 | 120–180 |
| Arugula | Mar 19 | Apr 9 | Apr 23 | May 28 – Jul 30 | 30–50 |
| Asparagus | — | — | May 7 | — | 730–1095 |
| Beets | — | Apr 9 | — | Jun 4 – Jul 2 | 50–70 |
| Belgian Endive | Mar 19 | Apr 9 | Apr 23 | Aug 13 – Oct 8 | 110–150 |
| Bitter Melon | Mar 5 | Apr 30 | May 7 | Jul 9 – Aug 20 | 60–90 |
| Black Beans | — | Apr 30 | — | Jul 30 – Sep 17 | 90–120 |
| Bok Choy | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 9 | 40–60 |
| Broccoli | Mar 19 | Apr 9 | Apr 23 | Jun 25 – Aug 6 | 60–90 |
| Broccoli Rabe | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 9 | 40–60 |
| Brussels Sprouts | Mar 19 | Apr 9 | Apr 23 | Jul 23 – Sep 17 | 90–130 |
| Butternut Squash | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 10 | 85–110 |
| Cabbage | Mar 19 | Apr 9 | Apr 23 | Jun 25 – Aug 20 | 60–100 |
| Calabash | Mar 5 | Apr 30 | May 7 | Jul 30 – Sep 24 | 80–120 |
| Cardoon | — | — | May 7 | Sep 10 – Oct 22 | 120–150 |
| Carrots | — | Apr 9 | — | Jun 11 – Jul 16 | 60–80 |
| Cauliflower | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 20 | 55–100 |
| Celeriac | Mar 19 | Apr 9 | Apr 23 | Aug 6 – Sep 10 | 100–120 |
| Celery | Mar 19 | Apr 9 | Apr 23 | Jul 16 – Sep 10 | 80–120 |
| Celtuce | Mar 19 | Apr 9 | Apr 23 | Jun 25 – Aug 6 | 60–90 |
| Chard | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 6 | 50–60 |
| Chayote | Mar 5 | Apr 30 | May 7 | Sep 10 – Nov 19 | 120–180 |
| Chickpeas | Mar 19 | Apr 9 | Apr 23 | Jul 16 – Aug 27 | 80–110 |
| Chicory | Mar 19 | Apr 9 | Apr 23 | Jun 25 – Aug 6 | 60–85 |
| Chinese Cabbage | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Jul 16 | 50–70 |
| Christmas Lima Beans | Mar 5 | Apr 30 | May 7 | Jul 30 – Sep 3 | 80–100 |
| Collard Greens | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 20 | 55–75 |
| Corn | — | Apr 30 | — | Jul 2 – Aug 27 | 60–100 |
| Cowpeas | — | Apr 30 | — | Jul 2 – Aug 13 | 60–90 |
| Cress | Mar 19 | Apr 9 | Apr 23 | May 7 – May 28 | 14–21 |
| Crookneck Squash | Mar 26 | Apr 30 | May 7 | Jun 25 – Jul 23 | 45–60 |
| Crosne | — | Apr 9 | — | Sep 10 – Nov 12 | 150–200 |
| Cucumber | Mar 26 | Apr 30 | May 7 | Jul 2 – Aug 27 | 50–70 |
| Daikon | — | Apr 9 | — | Jun 4 – Jul 2 | 50–70 |
| Delicata Squash | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 3 | 80–100 |
| Edamame | — | Apr 30 | — | Jul 16 – Aug 27 | 75–100 |
| Eggplant | Feb 19 | Apr 30 | May 7 | Jul 16 – Sep 17 | 65–85 |
| Endive | Mar 19 | Apr 9 | Apr 23 | Jun 11 – Jul 16 | 45–65 |
| Escarole | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Jul 16 | 50–70 |
| Fava Beans | Mar 19 | Apr 9 | Apr 23 | Jul 9 – Aug 20 | 75–100 |
| Fennel | Mar 5 | Apr 30 | May 7 | Jul 9 – Aug 20 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Ginger | Mar 5 | Apr 30 | May 7 | Jan 7 – Jan 21 | 240–300 |
| Green Beans | — | Apr 30 | — | Jun 25 – Aug 20 | 50–65 |
| Horseradish | — | — | May 7 | Sep 10 – Nov 19 | 120–180 |
| Hot Peppers | Feb 19 | Apr 30 | May 7 | Jul 16 – Oct 22 | 70–120 |
| Hubbard Squash | Mar 26 | Apr 30 | May 7 | Aug 20 – Sep 24 | 100–120 |
| Jicama | Mar 5 | Apr 30 | May 7 | Sep 10 – Nov 19 | 120–180 |
| Kabocha | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 3 | 85–100 |
| Kai Lan | Mar 19 | Apr 9 | Apr 23 | Jun 11 – Jul 9 | 45–60 |
| Kale | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 13 | 50–70 |
| Kidney Beans | — | Apr 30 | — | Jul 30 – Sep 3 | 85–110 |
| Kohlrabi | Mar 19 | Apr 9 | Apr 23 | Jun 11 – Jul 16 | 45–65 |
| Komatsuna | Mar 19 | Apr 9 | Apr 23 | May 28 – Jul 2 | 35–50 |
| Leeks | Mar 19 | Apr 9 | Apr 23 | Jul 23 – Oct 8 | 90–150 |
| Lentils | Mar 19 | Apr 9 | Apr 23 | Jul 16 – Aug 27 | 80–110 |
| Lettuce | Mar 19 | Apr 9 | Apr 23 | May 28 – Aug 6 | 30–60 |
| Lima Beans | — | Apr 30 | — | Jul 2 – Aug 13 | 60–90 |
| Loofah | Mar 5 | Apr 30 | May 7 | Aug 20 – Oct 22 | 100–150 |
| Luffa | Mar 5 | Apr 30 | May 7 | Aug 6 – Oct 22 | 90–150 |
| Mache | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 9 | 40–60 |
| Malabar Spinach | Mar 5 | Apr 30 | May 7 | Jul 2 – Jul 30 | 55–70 |
| Melon | Mar 26 | Apr 30 | May 7 | Jul 16 – Sep 3 | 70–100 |
| Microgreens | Mar 19 | Apr 9 | Apr 23 | Apr 30 – May 28 | 7–21 |
| Mitsuba | Mar 19 | Apr 9 | Apr 16 | Jun 11 – Aug 6 | 50–70 |
| Mizuna | Mar 19 | Apr 9 | Apr 23 | May 28 – Jun 25 | 30–45 |
| Mustard Greens | Mar 19 | Apr 9 | Apr 23 | May 28 – Jul 30 | 30–50 |
| Napa Cabbage | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Jul 23 | 55–75 |
| New Zealand Spinach | Mar 5 | Apr 30 | May 7 | Jul 2 – Jul 30 | 55–70 |
| Okra | Mar 5 | Apr 30 | May 7 | Jul 2 – Aug 27 | 50–65 |
| Onion | Mar 19 | Apr 9 | Apr 23 | Jul 23 – Sep 10 | 90–120 |
| Pac Choi | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 2 | 40–55 |
| Parsnip | — | Apr 9 | — | Jul 23 – Sep 3 | 100–130 |
| Patty Pan Squash | Mar 26 | Apr 30 | May 7 | Jun 25 – Jul 23 | 45–60 |
| Peas | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 13 | 55–70 |
| Peppers | Feb 19 | Apr 30 | May 7 | Jul 9 – Sep 17 | 60–90 |
| Pole Beans | Mar 5 | Apr 30 | May 7 | Jul 2 – Aug 27 | 55–70 |
| Potatoes | Mar 5 | Apr 30 | May 7 | Jul 16 – Sep 24 | 70–120 |
| Pumpkin | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 24 | 85–120 |
| Purslane | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 9 | 40–60 |
| Radicchio | Mar 19 | Apr 9 | Apr 23 | Jun 25 – Jul 30 | 60–80 |
| Radish | — | Apr 9 | — | May 7 – May 28 | 22–35 |
| Rhubarb | — | — | May 14 | — | 365–730 |
| Romanesco | Mar 19 | Apr 9 | Apr 23 | Jul 9 – Aug 20 | 75–100 |
| Rutabaga | — | Apr 9 | — | Jul 2 – Aug 6 | 80–100 |
| Salsify | — | Apr 9 | — | Jul 23 – Sep 3 | 100–130 |
| Savoy Cabbage | Mar 19 | Apr 9 | Apr 23 | Jul 2 – Aug 27 | 70–110 |
| Scallions | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Jul 16 | 50–70 |
| Scarlet Runner Beans | Mar 5 | Apr 30 | May 7 | Jul 9 – Aug 13 | 60–80 |
| Shallot | Mar 19 | Apr 9 | Apr 23 | Jul 23 – Sep 10 | 90–120 |
| Shiso | Mar 5 | Apr 30 | May 7 | Jul 2 – Aug 27 | 50–70 |
| Snap Peas | Mar 5 | Apr 30 | May 7 | Jul 2 – Aug 27 | 55–70 |
| Snow Peas | Mar 19 | Apr 9 | Apr 23 | Jun 18 – Aug 13 | 50–65 |
| Soybeans | — | Apr 30 | — | Jul 23 – Sep 17 | 80–120 |
| Spaghetti Squash | Mar 26 | Apr 30 | May 7 | Aug 6 – Sep 3 | 85–100 |
| Spinach | Mar 19 | Apr 9 | Apr 23 | May 28 – Jul 30 | 35–50 |
| Squash (Summer) | Mar 26 | Apr 30 | May 7 | Jun 25 – Aug 27 | 45–65 |
| Squash (Winter) | Mar 26 | Apr 30 | May 7 | Jul 30 – Sep 24 | 80–120 |
| Sunchoke | — | — | May 7 | Aug 27 – Oct 22 | 110–150 |
| Sunflower | Mar 5 | Apr 30 | May 7 | Jul 16 – Sep 3 | 70–100 |
| Sweet Corn | — | Apr 30 | — | Jul 2 – Aug 13 | 60–90 |
| Sweet Potatoes | Mar 5 | Apr 30 | May 7 | Aug 6 – Sep 24 | 90–120 |
| Tatsoi | Mar 19 | Apr 9 | Apr 23 | May 28 – Jul 2 | 35–50 |
| Tomatillo | Mar 5 | Apr 30 | May 7 | Jul 9 – Sep 17 | 60–85 |
| Tomatoes | Mar 5 | Apr 30 | May 7 | Jul 9 – Sep 17 | 60–85 |
| Turmeric | Mar 5 | Apr 30 | May 7 | Jan 7 – Jan 21 | 240–300 |
| Turnip | — | Apr 9 | — | May 21 – Jun 25 | 40–60 |
| Watercress | Mar 19 | Apr 9 | Apr 23 | Jun 4 – Jul 9 | 40–60 |
| Watermelon | Mar 26 | Apr 30 | May 7 | Jul 16 – Sep 3 | 70–100 |
| Wax Beans | — | Apr 30 | — | Jun 25 – Aug 20 | 50–65 |
| Winter Melon | Mar 5 | Apr 30 | May 7 | Aug 6 – Sep 24 | 90–120 |
| Yard Long Beans | Mar 5 | Apr 30 | May 7 | Jul 2 – Aug 13 | 55–80 |
| Zucchini | Mar 26 | Apr 30 | May 7 | Jun 25 – Aug 20 | 45–60 |
🍓 Fruits to Grow in Clallam County
27 fruits that grow well in Zone 8a with planting dates for Clallam County.
Show all 27 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | May 14 | Aug 13 – Nov 26 | 90–180 |
| Aronia | — | — | May 14 | — | 730–1095 |
| Blackberries | — | — | May 14 | — | 365–730 |
| Blueberries | — | — | May 14 | — | 730–1095 |
| Boysenberries | — | — | May 14 | — | 365–730 |
| Cantaloupe | — | — | May 14 | Jul 23 – Aug 27 | 70–90 |
| Che Fruit | — | — | May 14 | — | 1095–1825 |
| Elderberries | — | — | May 14 | — | 730–1095 |
| Figs | — | — | May 14 | — | 730–1825 |
| Goji Berries | — | — | May 14 | — | 730–1095 |
| Gooseberries | — | — | May 14 | — | 730–1095 |
| Grapes | — | — | May 14 | — | 730–1095 |
| Ground Cherry | — | — | May 14 | Jul 23 – Sep 17 | 65–80 |
| Hardy Kiwi | — | — | May 14 | — | 1095–1825 |
| Honeydew | — | — | May 14 | Aug 6 – Sep 17 | 80–110 |
| Jostaberry | — | — | May 14 | — | 730–1095 |
| Kiwi | — | — | May 14 | — | 1095–1825 |
| Loquat | — | — | May 14 | — | 730–1825 |
| Medlar | — | — | May 14 | — | 1095–1825 |
| Mulberries | — | — | May 14 | — | 730–1825 |
| Pawpaw | — | — | May 14 | — | 1095–2555 |
| Persimmon | — | — | May 14 | — | 1095–2555 |
| Pomegranate | — | — | May 14 | — | 730–1095 |
| Quince | — | — | May 14 | — | 1095–1825 |
| Raspberries | — | — | May 14 | — | 365–730 |
| Serviceberries | — | — | May 14 | — | 730–1095 |
| Strawberries | — | — | May 14 | Aug 13 – Jan 28 | 90–365 |
🌿 Herbs to Grow in Clallam County
42 herbs that grow well in Zone 8a with planting dates for Clallam County.
Show all 42 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Angelica | Mar 19 | Apr 9 | Apr 16 | — | 365–730 |
| Anise | Mar 19 | Apr 9 | Apr 16 | Jul 16 – Oct 1 | 90–120 |
| Basil | Mar 5 | Apr 30 | May 7 | Jul 2 – Sep 3 | 50–75 |
| Bee Balm | — | — | Apr 30 | Jul 30 – Oct 15 | 90–120 |
| Borage | Mar 19 | Apr 9 | Apr 16 | Jun 11 – Jul 30 | 50–60 |
| Caraway | Mar 19 | Apr 9 | Apr 16 | — | 365–450 |
| Catnip | — | — | Apr 30 | Jul 2 – Sep 3 | 60–80 |
| Chamomile | Mar 19 | Apr 9 | Apr 16 | Jun 18 – Aug 27 | 60–90 |
| Chervil | Mar 19 | Apr 9 | Apr 16 | May 28 – Jul 30 | 40–60 |
| Chives | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Cilantro | Mar 19 | Apr 9 | Apr 16 | May 28 – Jul 30 | 40–60 |
| Comfrey | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Cumin | Mar 19 | Apr 9 | Apr 16 | Jul 30 – Oct 1 | 100–120 |
| Dill | Mar 19 | Apr 9 | Apr 16 | May 28 – Jul 30 | 40–60 |
| Echinacea | — | — | Apr 30 | Sep 3 – Dec 10 | 120–180 |
| Epazote | Mar 5 | Apr 30 | May 7 | Jun 25 – Aug 20 | 45–60 |
| Fennel (herb) | Mar 19 | Apr 9 | Apr 16 | Jun 18 – Aug 27 | 60–90 |
| Feverfew | — | — | Apr 30 | Jul 30 – Oct 15 | 90–120 |
| Garlic Chives | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Horehound | — | — | Apr 30 | Jul 16 – Sep 10 | 75–90 |
| Hyssop | — | — | Apr 30 | Jul 9 – Sep 10 | 70–90 |
| Lavender | — | — | Apr 30 | Jul 30 – Dec 31 | 90–200 |
| Lemon Balm | — | — | Apr 30 | Jul 2 – Aug 20 | 60–70 |
| Lemon Thyme | — | — | Apr 30 | Jul 9 – Sep 10 | 70–90 |
| Lemon Verbena | Mar 5 | Apr 30 | May 7 | Jul 9 – Sep 17 | 60–90 |
| Lemongrass | Mar 5 | Apr 30 | May 7 | Jul 23 – Oct 22 | 75–120 |
| Lovage | — | — | Apr 30 | Jul 9 – Sep 10 | 70–90 |
| Marjoram | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Mint | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Oregano | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Parsley | Mar 19 | Apr 9 | Apr 16 | Jun 18 – Aug 20 | 60–80 |
| Rosemary | — | — | Apr 30 | Jul 23 – Dec 10 | 80–180 |
| Rue | — | — | Apr 30 | Jul 9 – Sep 10 | 70–90 |
| Sage | — | — | Apr 30 | Jul 16 – Sep 10 | 75–90 |
| Savory | — | — | Apr 30 | Jun 25 – Aug 20 | 50–70 |
| Sorrel | Mar 19 | Apr 9 | Apr 16 | May 28 – Jul 30 | 40–60 |
| Stevia | Mar 5 | Apr 30 | May 7 | Jul 9 – Sep 17 | 60–90 |
| Tarragon | — | — | Apr 30 | Jul 2 – Sep 10 | 60–90 |
| Thai Basil | Mar 5 | Apr 30 | May 7 | Jul 2 – Sep 3 | 50–75 |
| Thyme | — | — | Apr 30 | Jul 9 – Sep 10 | 70–90 |
| Valerian | — | — | Apr 30 | Sep 3 – Dec 10 | 120–180 |
| Yarrow | — | — | Apr 30 | Jul 30 – Oct 15 | 90–120 |
Monthly Planting Guide for Clallam County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Clallam County.
Frequently Asked Questions
What planting zone is Clallam County, WA?
Clallam County is in USDA Hardiness Zone 8a. 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 Clallam County, WA?
Based on 31 years of NOAA weather station data, the median last spring frost in Clallam County falls around April 23. In 8 out of 10 years, last frost lands between April 2 and May 9 — a 37-day window of variability. Use May 9 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Clallam County, WA?
The median first fall frost in Clallam County arrives around October 26. In cold years it can arrive as early as October 11; in mild years as late as November 9. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Clallam County?
Clallam County has a frost-free growing season of approximately 186 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 shorter by about 0.79 days per decade.
What is the soil like in Clallam County for gardening?
Clallam County has predominantly Silt Loam soil with a pH range of 5.7–6.8 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Clallam County?
Clallam County has commercial agriculture that includes Wheat, Apples, Potatoes, Cattle, Berries. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Clallam County a good location for home gardening?
Clallam County scores 66/100 (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.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Clallam County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.
