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Pacific County, WA — Planting Guide

Pacific County is in USDA Zone 8b. The average last spring frost is April 18 and the first fall frost is October 29, giving you a growing season of approximately 194 days.

At an elevation of 14 ft, Pacific County receives approximately 47.4 in of rainfall annually. Summer highs average 86°F with winter lows around 46°F. The predominant soil type is Silt Loam.

Based on 31 years of NOAA climate station data, the last frost date here varies by 49 days year to year — ranging from March 20 in warm years to May 9 in cold years. The growing season is trending shorter by about 1.65 days per decade. Pacific County scores 65/100 (Good) on the Microclimate Index.

🌡️ Zone

8b (15°F to 20°F min)

❄️ Last Frost

April 18

🍂 First Frost

October 29

📅 Growing Season

194 days

⛰️ Elevation

14 ft

🌧️ Annual Rainfall

47.4 in

Pacific County, WA Moderate season
194 days
Last Spring Frost April 18
194 growing days
First Fall Frost October 29

Monthly Watering Calendar

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

1"/wk 0" 2" 4" 6" 8" Jan 7.2" Feb 5" Mar 4.5" Apr 3.8" +1.5" May 2.8" +2.5" Jun 1.8" +3.4" Jul 0.9" +3.4" Aug 0.9" +2.6" Sep 1.7" Oct 4.2" Nov 8" Dec 6.7"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 7.2 in 15 days None
Feb 5 in 16 days Low
Mar 4.5 in 14 days Low
Apr 3.8 in 14 days 0.5 in Low
May 2.8 in 10 days 1.5 in Moderate
Jun 1.8 in 7 days 2.5 in High
Jul 0.9 in 3 days 3.4 in Critical
Aug 0.9 in 2 days 3.4 in Critical
Sep 1.7 in 4 days 2.6 in High
Oct 4.2 in 10 days 0.1 in Low
Nov 8 in 18 days Low
Dec 6.7 in 18 days None

Annual total: 47.5 in. Gardens typically need ~1 inch of water per week during the growing season. Months marked "None" for extra water are outside the active growing season for your zone — most gardens are dormant and don't need irrigation during those months.

Pacific County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Frost Risk Probability

Based on 31 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Apr 18 → Oct 29 194 frost-free days Protect crops frost returns Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 9 Protect by: Dec 2

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 Dec 2 207 days
Cautious Apr 28 Nov 8 194 days
Average year Apr 18 Oct 29 194 days
Optimistic Apr 5 Oct 16 194 days
Aggressive (risky) Mar 20 Oct 3 197 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±49 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 shorter here (about 1.7 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

65 Good
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.0/10
Climate Shift
6.6/10
Rainfall Challenge
1.0/10

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

Zone 8b Frost Countdown
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Last Frost: Apr 18 First Frost: Oct 29

Local Gardening Help in Pacific 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 Pacific County's climate and soil.

County Extension Office

Pacific 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.

Find Master Gardeners in WA →

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 Pacific County

Soil testing Pacific NW gardening Master Gardener hotline
Finding local nurseries & garden centers in Pacific County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Pacific 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 Pacific County WA" or "garden center Pacific 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 Pacific County WA" or check your extension office and local parks department. Facebook groups like "Pacific 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
After Basil (harvest ends Aug 29) 61 days until frost
After Onion (harvest ends Sep 5) 54 days until frost
After Snap Peas (harvest ends Aug 22) 68 days until frost
After Zucchini (harvest ends Aug 15) 75 days until frost
After Cabbage (harvest ends Aug 15) 75 days until frost
After Squash (Winter) (harvest ends Sep 19) 40 days until frost

Sunlight & Day Length

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

Longest Day

15.6 hours

Summer solstice daylight

Shortest Day

8.4 hours

Winter solstice daylight

Peak Sun Hours

11 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 4h 9h 13h 17h 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 8.8 hr 2.2 hr Short day
February 10.1 hr 2.9 hr Short day
March 11.6 hr 4 hr Short day
April 13.3 hr 5.8 hr Neutral
May 14.8 hr 7.2 hr Long day
June 15.6 hr 8.3 hr Long day
July 15.3 hr 11 hr Long day
August 14 hr 9.9 hr Long day
September 12.3 hr 7.2 hr Neutral
October 10.6 hr 4.2 hr Short day
November 9.1 hr 2.3 hr Short day
December 8.4 hr 1.9 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.

60°F 70°F 30° 50° 70° 90° 110° 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 44°F 49°F 🐢 Slow ~24 weeks
Feb 44°F 51°F 🐢 Slow ~24 weeks
Mar 50°F 53°F ♻️ Active ~14 weeks
Apr 62°F 62°F ♻️ Active ~14 weeks
May 71°F 69°F 🔥 Peak ~8 weeks
Jun 80°F 78°F 🔥 Peak ~8 weeks
Jul 90°F 84°F 🔥 Peak ~8 weeks
Aug 90°F 84°F 🔥 Peak ~8 weeks
Sep 83°F 82°F 🔥 Peak ~8 weeks
Oct 73°F 74°F 🔥 Peak ~8 weeks
Nov 61°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 Pacific County

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

Insect Pest Pressure

6.9 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

7.1 / 10

High fungal/bacterial risk. Space plants for airflow, water at soil level.

Seasonal Risk

Spring High
Summer High
Fall High
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Squash vine borers High 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 Moderate 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 Pacific County

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

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 4 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Sep 5 Apr 4 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Sep 8 Apr 4 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Aug 19 Mar 28 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 26 Apr 4 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 28 Mar 28 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Aug 2 Mar 28 Erosion control, weed suppression, good biomass
Spring Cover Crops (4 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Apr 20 Aug 20 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Apr 24 Aug 27 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Apr 28 Sep 3 Massive biomass, breaks compaction, suppresses nematodes
White clover Mar 24 Sep 3 ✓ 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 Apr 29 Oct 15 Deep roots break compaction, attract pollinators and beneficial insects

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: 8 mph   Winter: 14 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

Low

Relatively flat terrain (363 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting Potential

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

Annual Collection

23,674 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 2,000 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, Aug

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 47.5 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 23,674 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Use a first-flush diverter to keep roof debris out of your collection

Soil & Growing Conditions in Pacific County

Soil Type

Silt Loam

Soil pH 5.6–6.2 · 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. (47.4 in. annual rainfall)

Season Tips

194-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.

Get My Free Planner →

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 Pacific County

115 vegetables that grow well in Zone 8b with planting dates for Pacific County.

Show all 115 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Mar 21 Apr 25 May 2 Jul 25 – Aug 29 80–100
Amaranth Feb 28 Apr 25 May 2 Aug 1 – Sep 19 90–120
Artichoke May 2 Sep 5 – Nov 14 120–180
Arugula Mar 14 Apr 4 Apr 18 May 23 – Jul 25 30–50
Asparagus May 2 730–1095
Beets Apr 4 May 30 – Jun 27 50–70
Belgian Endive Mar 14 Apr 4 Apr 18 Aug 8 – Oct 3 110–150
Bitter Melon Feb 28 Apr 25 May 2 Jul 4 – Aug 15 60–90
Black Beans Apr 25 Jul 25 – Sep 12 90–120
Bok Choy Mar 14 Apr 4 Apr 18 May 30 – Jul 4 40–60
Broccoli Mar 14 Apr 4 Apr 18 Jun 20 – Aug 1 60–90
Broccoli Rabe Mar 14 Apr 4 Apr 18 May 30 – Jul 4 40–60
Brussels Sprouts Mar 14 Apr 4 Apr 18 Jul 18 – Sep 12 90–130
Butternut Squash Mar 21 Apr 25 May 2 Aug 1 – Sep 5 85–110
Cabbage Mar 14 Apr 4 Apr 18 Jun 20 – Aug 15 60–100
Calabash Feb 28 Apr 25 May 2 Jul 25 – Sep 19 80–120
Cardoon May 2 Sep 5 – Oct 17 120–150
Carrots Apr 4 Jun 6 – Jul 11 60–80
Cauliflower Mar 14 Apr 4 Apr 18 Jun 13 – Aug 15 55–100
Celeriac Mar 14 Apr 4 Apr 18 Aug 1 – Sep 5 100–120
Celery Mar 14 Apr 4 Apr 18 Jul 11 – Sep 5 80–120
Celtuce Mar 14 Apr 4 Apr 18 Jun 20 – Aug 1 60–90
Chard Mar 14 Apr 4 Apr 18 Jun 13 – Aug 1 50–60
Chayote Feb 28 Apr 25 May 2 Sep 5 – Nov 14 120–180
Chickpeas Mar 14 Apr 4 Apr 18 Jul 11 – Aug 22 80–110
Chicory Mar 14 Apr 4 Apr 18 Jun 20 – Aug 1 60–85
Chinese Cabbage Mar 14 Apr 4 Apr 18 Jun 13 – Jul 11 50–70
Christmas Lima Beans Feb 28 Apr 25 May 2 Jul 25 – Aug 29 80–100
Collard Greens Mar 14 Apr 4 Apr 18 Jun 13 – Aug 15 55–75
Corn Apr 25 Jun 27 – Aug 22 60–100
Cowpeas Apr 25 Jun 27 – Aug 8 60–90
Cress Mar 14 Apr 4 Apr 18 May 2 – May 23 14–21
Crookneck Squash Mar 21 Apr 25 May 2 Jun 20 – Jul 18 45–60
Crosne Apr 4 Sep 5 – Nov 7 150–200
Cucumber Mar 21 Apr 25 May 2 Jun 27 – Aug 22 50–70
Daikon Apr 4 May 30 – Jun 27 50–70
Delicata Squash Mar 21 Apr 25 May 2 Jul 25 – Aug 29 80–100
Edamame Apr 25 Jul 11 – Aug 22 75–100
Eggplant Feb 14 Apr 25 May 2 Jul 11 – Sep 12 65–85
Endive Mar 14 Apr 4 Apr 18 Jun 6 – Jul 11 45–65
Escarole Mar 14 Apr 4 Apr 18 Jun 13 – Jul 11 50–70
Fava Beans Mar 14 Apr 4 Apr 18 Jul 4 – Aug 15 75–100
Fennel Feb 28 Apr 25 May 2 Jul 4 – Aug 15 60–90
Garlic 90–240
Ginger Feb 28 Apr 25 May 2 Jan 2 – Jan 16 240–300
Green Beans Apr 25 Jun 20 – Aug 15 50–65
Horseradish May 2 Sep 5 – Nov 14 120–180
Hot Peppers Feb 14 Apr 25 May 2 Jul 11 – Oct 17 70–120
Hubbard Squash Mar 21 Apr 25 May 2 Aug 15 – Sep 19 100–120
Jicama Feb 28 Apr 25 May 2 Sep 5 – Nov 14 120–180
Kabocha Mar 21 Apr 25 May 2 Aug 1 – Aug 29 85–100
Kai Lan Mar 14 Apr 4 Apr 18 Jun 6 – Jul 4 45–60
Kale Mar 14 Apr 4 Apr 18 Jun 13 – Aug 8 50–70
Kidney Beans Apr 25 Jul 25 – Aug 29 85–110
Kohlrabi Mar 14 Apr 4 Apr 18 Jun 6 – Jul 11 45–65
Komatsuna Mar 14 Apr 4 Apr 18 May 23 – Jun 27 35–50
Leeks Mar 14 Apr 4 Apr 18 Jul 18 – Oct 3 90–150
Lentils Mar 14 Apr 4 Apr 18 Jul 11 – Aug 22 80–110
Lettuce Mar 14 Apr 4 Apr 18 May 23 – Aug 1 30–60
Lima Beans Apr 25 Jun 27 – Aug 8 60–90
Loofah Feb 28 Apr 25 May 2 Aug 15 – Oct 17 100–150
Luffa Feb 28 Apr 25 May 2 Aug 1 – Oct 17 90–150
Mache Mar 14 Apr 4 Apr 18 May 30 – Jul 4 40–60
Malabar Spinach Feb 28 Apr 25 May 2 Jun 27 – Jul 25 55–70
Melon Mar 21 Apr 25 May 2 Jul 11 – Aug 29 70–100
Microgreens Mar 14 Apr 4 Apr 18 Apr 25 – May 23 7–21
Mitsuba Mar 14 Apr 4 Apr 11 Jun 6 – Aug 1 50–70
Mizuna Mar 14 Apr 4 Apr 18 May 23 – Jun 20 30–45
Mustard Greens Mar 14 Apr 4 Apr 18 May 23 – Jul 25 30–50
Napa Cabbage Mar 14 Apr 4 Apr 18 Jun 13 – Jul 18 55–75
New Zealand Spinach Feb 28 Apr 25 May 2 Jun 27 – Jul 25 55–70
Okra Feb 28 Apr 25 May 2 Jun 27 – Aug 22 50–65
Onion Mar 14 Apr 4 Apr 18 Jul 18 – Sep 5 90–120
Pac Choi Mar 14 Apr 4 Apr 18 May 30 – Jun 27 40–55
Parsnip Apr 4 Jul 18 – Aug 29 100–130
Patty Pan Squash Mar 21 Apr 25 May 2 Jun 20 – Jul 18 45–60
Peas Mar 14 Apr 4 Apr 18 Jun 13 – Aug 8 55–70
Peppers Feb 14 Apr 25 May 2 Jul 4 – Sep 12 60–90
Pole Beans Feb 28 Apr 25 May 2 Jun 27 – Aug 22 55–70
Potatoes Feb 28 Apr 25 May 2 Jul 11 – Sep 19 70–120
Pumpkin Mar 21 Apr 25 May 2 Aug 1 – Sep 19 85–120
Purslane Mar 14 Apr 4 Apr 18 May 30 – Jul 4 40–60
Radicchio Mar 14 Apr 4 Apr 18 Jun 20 – Jul 25 60–80
Radish Apr 4 May 2 – May 23 22–35
Rhubarb May 9 365–730
Romanesco Mar 14 Apr 4 Apr 18 Jul 4 – Aug 15 75–100
Rutabaga Apr 4 Jun 27 – Aug 1 80–100
Salsify Apr 4 Jul 18 – Aug 29 100–130
Savoy Cabbage Mar 14 Apr 4 Apr 18 Jun 27 – Aug 22 70–110
Scallions Mar 14 Apr 4 Apr 18 Jun 13 – Jul 11 50–70
Scarlet Runner Beans Feb 28 Apr 25 May 2 Jul 4 – Aug 8 60–80
Shallot Mar 14 Apr 4 Apr 18 Jul 18 – Sep 5 90–120
Shiso Feb 28 Apr 25 May 2 Jun 27 – Aug 22 50–70
Snap Peas Feb 28 Apr 25 May 2 Jun 27 – Aug 22 55–70
Snow Peas Mar 14 Apr 4 Apr 18 Jun 13 – Aug 8 50–65
Soybeans Apr 25 Jul 18 – Sep 12 80–120
Spaghetti Squash Mar 21 Apr 25 May 2 Aug 1 – Aug 29 85–100
Spinach Mar 14 Apr 4 Apr 18 May 23 – Jul 25 35–50
Squash (Summer) Mar 21 Apr 25 May 2 Jun 20 – Aug 22 45–65
Squash (Winter) Mar 21 Apr 25 May 2 Jul 25 – Sep 19 80–120
Sunchoke May 2 Aug 22 – Oct 17 110–150
Sunflower Feb 28 Apr 25 May 2 Jul 11 – Aug 29 70–100
Sweet Corn Apr 25 Jun 27 – Aug 8 60–90
Sweet Potatoes Feb 28 Apr 25 May 2 Aug 1 – Sep 19 90–120
Tatsoi Mar 14 Apr 4 Apr 18 May 23 – Jun 27 35–50
Tomatillo Feb 28 Apr 25 May 2 Jul 4 – Sep 12 60–85
Tomatoes Feb 28 Apr 25 May 2 Jul 4 – Sep 12 60–85
Turmeric Feb 28 Apr 25 May 2 Jan 2 – Jan 16 240–300
Turnip Apr 4 May 16 – Jun 20 40–60
Watercress Mar 14 Apr 4 Apr 18 May 30 – Jul 4 40–60
Watermelon Mar 21 Apr 25 May 2 Jul 11 – Aug 29 70–100
Wax Beans Apr 25 Jun 20 – Aug 15 50–65
Winter Melon Feb 28 Apr 25 May 2 Aug 1 – Sep 19 90–120
Yard Long Beans Feb 28 Apr 25 May 2 Jun 27 – Aug 8 55–80
Zucchini Mar 21 Apr 25 May 2 Jun 20 – Aug 15 45–60

🍓 Fruits to Grow in Pacific County

27 fruits that grow well in Zone 8b with planting dates for Pacific County.

Show all 27 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries May 9 Aug 8 – Nov 21 90–180
Aronia May 9 730–1095
Blackberries May 9 365–730
Blueberries May 9 730–1095
Boysenberries May 9 365–730
Cantaloupe May 9 Jul 18 – Aug 22 70–90
Che Fruit May 9 1095–1825
Elderberries May 9 730–1095
Figs May 9 730–1825
Goji Berries May 9 730–1095
Gooseberries May 9 730–1095
Grapes May 9 730–1095
Ground Cherry May 9 Jul 18 – Sep 12 65–80
Hardy Kiwi May 9 1095–1825
Honeydew May 9 Aug 1 – Sep 12 80–110
Jostaberry May 9 730–1095
Kiwi May 9 1095–1825
Loquat May 9 730–1825
Medlar May 9 1095–1825
Mulberries May 9 730–1825
Pawpaw May 9 1095–2555
Persimmon May 9 1095–2555
Pomegranate May 9 730–1095
Quince May 9 1095–1825
Raspberries May 9 365–730
Serviceberries May 9 730–1095
Strawberries May 9 Aug 8 – Jan 23 90–365

🌿 Herbs to Grow in Pacific County

42 herbs that grow well in Zone 8b with planting dates for Pacific County.

Show all 42 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Angelica Mar 14 Apr 4 Apr 11 365–730
Anise Mar 14 Apr 4 Apr 11 Jul 11 – Sep 26 90–120
Basil Feb 28 Apr 25 May 2 Jun 27 – Aug 29 50–75
Bee Balm Apr 25 Jul 25 – Oct 10 90–120
Borage Mar 14 Apr 4 Apr 11 Jun 6 – Jul 25 50–60
Caraway Mar 14 Apr 4 Apr 11 365–450
Catnip Apr 25 Jun 27 – Aug 29 60–80
Chamomile Mar 14 Apr 4 Apr 11 Jun 13 – Aug 22 60–90
Chervil Mar 14 Apr 4 Apr 11 May 23 – Jul 25 40–60
Chives Apr 25 Jun 27 – Sep 5 60–90
Cilantro Mar 14 Apr 4 Apr 11 May 23 – Jul 25 40–60
Comfrey Apr 25 Jun 27 – Sep 5 60–90
Cumin Mar 14 Apr 4 Apr 11 Jul 25 – Sep 26 100–120
Dill Mar 14 Apr 4 Apr 11 May 23 – Jul 25 40–60
Echinacea Apr 25 Aug 29 – Dec 5 120–180
Epazote Feb 28 Apr 25 May 2 Jun 20 – Aug 15 45–60
Fennel (herb) Mar 14 Apr 4 Apr 11 Jun 13 – Aug 22 60–90
Feverfew Apr 25 Jul 25 – Oct 10 90–120
Garlic Chives Apr 25 Jun 27 – Sep 5 60–90
Horehound Apr 25 Jul 11 – Sep 5 75–90
Hyssop Apr 25 Jul 4 – Sep 5 70–90
Lavender Apr 25 Jul 25 – Dec 26 90–200
Lemon Balm Apr 25 Jun 27 – Aug 15 60–70
Lemon Thyme Apr 25 Jul 4 – Sep 5 70–90
Lemon Verbena Feb 28 Apr 25 May 2 Jul 4 – Sep 12 60–90
Lemongrass Feb 28 Apr 25 May 2 Jul 18 – Oct 17 75–120
Lovage Apr 25 Jul 4 – Sep 5 70–90
Marjoram Apr 25 Jun 27 – Sep 5 60–90
Mint Apr 25 Jun 27 – Sep 5 60–90
Oregano Apr 25 Jun 27 – Sep 5 60–90
Parsley Mar 14 Apr 4 Apr 11 Jun 13 – Aug 15 60–80
Rosemary Apr 25 Jul 18 – Dec 5 80–180
Rue Apr 25 Jul 4 – Sep 5 70–90
Sage Apr 25 Jul 11 – Sep 5 75–90
Savory Apr 25 Jun 20 – Aug 15 50–70
Sorrel Mar 14 Apr 4 Apr 11 May 23 – Jul 25 40–60
Stevia Feb 28 Apr 25 May 2 Jul 4 – Sep 12 60–90
Tarragon Apr 25 Jun 27 – Sep 5 60–90
Thai Basil Feb 28 Apr 25 May 2 Jun 27 – Aug 29 50–75
Thyme Apr 25 Jul 4 – Sep 5 70–90
Valerian Apr 25 Aug 29 – Dec 5 120–180
Yarrow Apr 25 Jul 25 – Oct 10 90–120

Monthly Planting Guide for Pacific County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Pacific County, WA?

Pacific County is in USDA Hardiness Zone 8b. 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 Pacific County, WA?

Based on 31 years of NOAA weather station data, the median last spring frost in Pacific County falls around April 18. In 8 out of 10 years, last frost lands between March 20 and May 9 — a 49-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 Pacific County, WA?

The median first fall frost in Pacific County arrives around October 29. In cold years it can arrive as early as October 3; in mild years as late as December 2. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Pacific County?

Pacific County has a frost-free growing season of approximately 194 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 1.65 days per decade.

What is the soil like in Pacific County for gardening?

Pacific County has predominantly Silt Loam soil with a pH range of 5.6–6.2 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Pacific County?

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

Is Pacific County a good location for home gardening?

Pacific County scores 65/100 (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 Pacific County gardeners in Zone 8b 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.

Level Up Your Garden

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Pacific County (31 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: April 2026.