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Klickitat County, WA — Planting Guide

Klickitat County, Washington Zone 7b July

Your July gardening checklist

If you only do a handful of things in the garden this July, make it these. They're sequenced around your zone's frost timing.

Avg. last frost April 14
Avg. first frost October 19
Soil temp (4") 82°F
Watering Critical
Pest pressure High
Daylight 15.2 hrs
  1. Bring in the basil, carrots, and cucumber

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

A few tasks this July that'll pay off in August
  • First harvests: basil, cucumber, and green beans
  • Fall sowing: carrots, kale, and lettuce

Instant PDF download. No spam, unsubscribe any time.

Klickitat County is in USDA Zone 7b. The average last spring frost is April 14 and the first fall frost is October 19, giving you a growing season of approximately 188 days.

At an elevation of 466 ft, Klickitat County receives approximately 42 in of rainfall annually. Summer highs average 77°F with winter lows around 32°F. The predominant soil type is Silt Loam.

Based on 29 years of NOAA climate station data, the last frost date here varies by 41 days year to year — ranging from March 25 in warm years to May 6 in cold years. The growing season is trending longer by about 1.5 days per decade. Klickitat County scores 68/100 (Good) on the Microclimate Index.

🌡️ Zone

7b (5°F to 10°F min)

❄️ Last Frost

April 14

🍂 First Frost

October 19

📅 Growing Season

188 days

⛰️ Elevation

466 ft

🌧️ Annual Rainfall

42 in

Klickitat County, WA Moderate season
188 days
Last Spring Frost April 14
188 growing days
First Fall Frost October 19

Monthly Watering Calendar for Klickitat County

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

What this means for you: The 1-inch-per-week rule applies to most vegetable crops. Klickitat County averages 42" a year — divide by 52 and compare to that 1" target. Some months are above, some below; that's where the calendar earns its keep.

1"/wk 0" 1.7" 3.4" 5" 6.7" Jan 5.4" Feb 4.3" Mar 4.4" +0.8" Apr 3.5" +1.7" May 2.6" +2.9" Jun 1.4" +3.6" Jul 0.7" +3.4" Aug 0.9" +2.7" Sep 1.6" Oct 3.9" Nov 6.7" Dec 6.5"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 5.4 in 20 days None
Feb 4.3 in 17 days None
Mar 4.4 in 16 days Low
Apr 3.5 in 12 days 0.8 in Moderate
May 2.6 in 9 days 1.7 in High
Jun 1.4 in 6 days 2.9 in High
Jul 0.7 in 3 days 3.6 in Critical
Aug 0.9 in 3 days 3.4 in Critical
Sep 1.6 in 4 days 2.7 in High
Oct 3.9 in 9 days 0.4 in Low
Nov 6.7 in 17 days None
Dec 6.5 in 15 days None

Annual total: 41.9 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.

Klickitat County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.8

Drainage

Well Drained

Frost Risk Probability

Based on 29 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Apr 14 → Oct 19 188 frost-free days Protect crops frost returns Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: May 6 Protect by: Nov 11

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 6 Nov 11 189 days
Cautious Apr 19 Oct 26 190 days
Average year Apr 14 Oct 19 188 days
Optimistic Apr 8 Oct 11 186 days
Aggressive (risky) Mar 25 Sep 29 188 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±41 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

🌱
Is the growing season changing?

Yes — growing seasons are getting longer here (about 1.5 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

68 Good
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
0.0/10
Altitude Challenge
0.0/10
Climate Shift
6.0/10
Rainfall Challenge
0.0/10

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

Zone 7b Frost Countdown
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Last Frost: Apr 14 First Frost: Oct 19

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

County Extension Office

Klickitat 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 Klickitat County

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

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Klickitat 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 Klickitat County WA" or "garden center Klickitat 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 Klickitat County WA" or check your extension office and local parks department. Facebook groups like "Klickitat 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 Tomatoes (harvest ends Sep 8) 41 days until frost
After Onion (harvest ends Sep 1) 48 days until frost
After Chard (harvest ends Jul 28) 83 days until frost
After Sweet Potatoes (harvest ends Sep 15) 34 days until frost
After Corn (harvest ends Aug 11) 69 days until frost
After Squash (Winter) (harvest ends Sep 15) 34 days until frost

Sunlight & Day Length in Klickitat County

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

Quick context: Day length is the trigger that tells lettuce, spinach, and cilantro to bolt. In Klickitat County, knowing when that day-length threshold arrives helps you plant a final round in time to harvest before it bolts.

Longest Day

15.5 hours

Summer solstice daylight

Shortest Day

8.5 hours

Winter solstice daylight

Peak Sun Hours

11.1 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 2.1 hr Short day
February 10.1 hr 3.2 hr Short day
March 11.6 hr 3.9 hr Short day
April 13.3 hr 5.9 hr Neutral
May 14.7 hr 7.4 hr Long day
June 15.5 hr 8.5 hr Long day
July 15.2 hr 11.1 hr Long day
August 14 hr 9.5 hr Long day
September 12.3 hr 7.3 hr Neutral
October 10.7 hr 4 hr Short day
November 9.2 hr 2.2 hr Short day
December 8.5 hr 1.8 hr Short day

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

Soil Temperature & Composting in Klickitat County

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

For new gardeners: Air temperature lies. Your air can be 70°F in April but the soil 4 inches down is still 50°F — too cold for tomatoes or peppers to root properly. Klickitat County's soil temperature curve tells you the real planting window. A $5 soil thermometer pays for itself in one season.

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

7 months

Solid season. Piles go dormant in winter.

60°F 70°F 10° 33° 55° 78° 100° 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 29°F 39°F ❄️ Dormant ~36 weeks
Feb 30°F 38°F ❄️ Dormant ~36 weeks
Mar 39°F 41°F ❄️ Dormant ~36 weeks
Apr 52°F 50°F ♻️ Active ~14 weeks
May 63°F 59°F ♻️ Active ~14 weeks
Jun 71°F 67°F 🔥 Peak ~8 weeks
Jul 82°F 76°F 🔥 Peak ~8 weeks
Aug 83°F 78°F 🔥 Peak ~8 weeks
Sep 74°F 73°F 🔥 Peak ~8 weeks
Oct 63°F 64°F ♻️ Active ~14 weeks
Nov 49°F 55°F 🐢 Slow ~24 weeks
Dec 36°F 43°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 Klickitat County

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

Why this matters: High pest pressure means weekly inspection. Low pest pressure means monthly. The score tells you which routine to set up before you have a problem.

Insect Pest Pressure

5.7 / 10

Moderate — common pests appear but manageable with monitoring.

Disease Risk

6 / 10

Moderate — watch for mildew and blight during wet periods.

Seasonal Risk

Spring Low
Summer High
Fall Low
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids Moderate Apr, May, Jun, Jul, Aug, Sep
Japanese beetles High Jun, Jul, Aug
Squash vine borers Moderate Jun, Jul
Tomato hornworms Moderate Jun, Jul, Aug
Cucumber beetles Moderate May, Jun, Jul
Stink bugs Low Jun, Jul, Aug, Sep
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
  • Watch for powdery mildew, damping off, gray mold — common in your climate

Cover Crops for Klickitat County

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.

What this means for you: Cover crops do four things at once: fix nitrogen (legumes), suppress weeds (any), prevent erosion, and add organic matter when chopped down. Klickitat County's seasonal pattern determines which species fit which gap.

Spring Cover Crops (3 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Apr 22 Aug 17 Rapid growth, attracts pollinators, suppresses weeds
Sorghum-sudan grass Apr 20 Aug 10 Massive biomass, breaks compaction, suppresses nematodes
White clover Mar 14 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 Apr 28 Sep 21 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 7 Mar 24 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Aug 7 Mar 31 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Sep 3 Mar 24 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Jul 27 Mar 24 ✓ Yes Excellent nitrogen fixer, good for depleted soils
Oats Sep 12 Mar 24 Quick biomass, winterkills in cold zones — no spring tillage needed
Winter rye Jul 29 Mar 24 Suppresses weeds, prevents erosion, breaks up compacted soil
Winter wheat Jul 30 Mar 24 Erosion control, weed suppression, good biomass

Wind & Microclimate in Klickitat County

What this means for you: Light wind is good (strengthens stems, aids pollination); strong wind is bad (snaps stems, dries leaves, scatters seeds). Klickitat County averages 8.9 mph. If you garden near coast, ridge, or open plains, you're likely above that — plan for it.

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

Seasonal Wind Speed

Spring: 9 mph   Summer: 9 mph

Fall: 8 mph   Winter: 13 mph

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

Windbreak Benefit

5.1/10

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

Frost Pocket Risk

Moderate

Some terrain variation (638 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.

Rainwater Harvesting in Klickitat County

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

Quick context: A single rain barrel under a downspout catches 50 gallons in a 0.5" storm. Klickitat County's 42" annual rainfall means even modest harvesting systems quickly amortize their cost in water savings.

Annual Collection

20,882 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, Mar, 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 41.9 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 20,882 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 Klickitat County

Soil Type

Silt Loam

Soil pH 5.3–6.8 · 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. (42 in. annual rainfall)

Season Tips

188-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.

Your Free Printable Garden Planner

Plan every bed, every planting, every harvest — in one place. This 22-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.

Instant PDF download. No spam, unsubscribe any time.

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 Klickitat County

112 vegetables that grow well in Zone 7b with planting dates for Klickitat County.

Show all 112 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Mar 17 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Amaranth Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Artichoke Apr 28 Sep 1 – Nov 10 120–180
Arugula Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jul 21 30–50
Asparagus Apr 28 730–1095
Beets Mar 31 Aug 10 May 26 – Jun 23 50–70
Belgian Endive Mar 10 Mar 31 Apr 14 Aug 10 Aug 4 – Sep 29 110–150
Bitter Melon Feb 24 Apr 21 Apr 28 Jun 30 – Aug 11 60–90
Black Beans Apr 21 Jul 21 – Sep 8 90–120
Bok Choy Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 30 40–60
Broccoli Mar 10 Mar 31 Apr 14 Aug 10 Jun 16 – Jul 28 60–90
Broccoli Rabe Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 30 40–60
Brussels Sprouts Mar 10 Mar 31 Apr 14 Aug 10 Jul 14 – Sep 8 90–130
Butternut Squash Mar 17 Apr 21 Apr 28 Jul 28 – Sep 1 85–110
Cabbage Mar 10 Mar 31 Apr 14 Aug 10 Jun 16 – Aug 11 60–100
Calabash Feb 24 Apr 21 Apr 28 Jul 21 – Sep 15 80–120
Cardoon Apr 28 Sep 1 – Oct 13 120–150
Carrots Mar 31 Aug 10 Jun 2 – Jul 7 60–80
Cauliflower Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Aug 11 55–100
Celeriac Mar 10 Mar 31 Apr 14 Aug 10 Jul 28 – Sep 1 100–120
Celery Mar 10 Mar 31 Apr 14 Aug 10 Jul 7 – Sep 1 80–120
Celtuce Mar 10 Mar 31 Apr 14 Aug 10 Jun 16 – Jul 28 60–90
Chard Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Jul 28 50–60
Chayote Feb 24 Apr 21 Apr 28 Sep 1 – Nov 10 120–180
Chickpeas Mar 10 Mar 31 Apr 14 Aug 10 Jul 7 – Aug 18 80–110
Chicory Mar 10 Mar 31 Apr 14 Aug 10 Jun 16 – Jul 28 60–85
Chinese Cabbage Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Jul 7 50–70
Christmas Lima Beans Feb 24 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Collard Greens Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Aug 11 55–75
Corn Apr 21 Jun 23 – Aug 18 60–100
Cowpeas Apr 21 Jun 23 – Aug 4 60–90
Cress Mar 10 Mar 31 Apr 14 Aug 10 Apr 28 – May 19 14–21
Crookneck Squash Mar 17 Apr 21 Apr 28 Jun 16 – Jul 14 45–60
Crosne Mar 31 Aug 10 Sep 1 – Nov 3 150–200
Cucumber Mar 17 Apr 21 Apr 28 Jun 23 – Aug 18 50–70
Daikon Mar 31 Aug 10 May 26 – Jun 23 50–70
Delicata Squash Mar 17 Apr 21 Apr 28 Jul 21 – Aug 25 80–100
Edamame Apr 21 Jul 7 – Aug 18 75–100
Eggplant Feb 10 Apr 21 Apr 28 Jul 7 – Sep 8 65–85
Endive Mar 10 Mar 31 Apr 14 Aug 10 Jun 2 – Jul 7 45–65
Escarole Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Jul 7 50–70
Fava Beans Mar 10 Mar 31 Apr 14 Aug 10 Jun 30 – Aug 11 75–100
Fennel Feb 24 Apr 21 Apr 28 Jun 30 – Aug 11 60–90
Garlic Sep 7 Dec 7 – Apr 19 90–240
Green Beans Apr 21 Jun 16 – Aug 11 50–65
Horseradish Apr 28 Sep 1 – Nov 10 120–180
Hot Peppers Feb 10 Apr 21 Apr 28 Jul 7 – Oct 13 70–120
Hubbard Squash Mar 17 Apr 21 Apr 28 Aug 11 – Sep 15 100–120
Jicama Feb 24 Apr 21 Apr 28 Sep 1 – Nov 10 120–180
Kabocha Mar 17 Apr 21 Apr 28 Jul 28 – Aug 25 85–100
Kai Lan Mar 10 Mar 31 Apr 14 Aug 10 Jun 2 – Jun 30 45–60
Kale Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Aug 4 50–70
Kidney Beans Apr 21 Jul 21 – Aug 25 85–110
Kohlrabi Mar 10 Mar 31 Apr 14 Aug 10 Jun 2 – Jul 7 45–65
Komatsuna Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jun 23 35–50
Leeks Mar 10 Mar 31 Apr 14 Aug 10 Jul 14 – Sep 29 90–150
Lentils Mar 10 Mar 31 Apr 14 Aug 10 Jul 7 – Aug 18 80–110
Lettuce Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jul 28 30–60
Lima Beans Apr 21 Jun 23 – Aug 4 60–90
Loofah Feb 24 Apr 21 Apr 28 Aug 11 – Oct 13 100–150
Luffa Feb 24 Apr 21 Apr 28 Jul 28 – Oct 13 90–150
Mache Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 30 40–60
Malabar Spinach Feb 24 Apr 21 Apr 28 Jun 23 – Jul 21 55–70
Melon Mar 17 Apr 21 Apr 28 Jul 7 – Aug 25 70–100
Microgreens Mar 10 Mar 31 Apr 14 Aug 10 Apr 21 – May 19 7–21
Mitsuba Mar 10 Mar 31 Apr 7 Aug 10 Jun 2 – Jul 28 50–70
Mizuna Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jun 16 30–45
Mustard Greens Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jul 21 30–50
Napa Cabbage Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Jul 14 55–75
New Zealand Spinach Feb 24 Apr 21 Apr 28 Jun 23 – Jul 21 55–70
Okra Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 50–65
Onion Mar 10 Mar 31 Apr 14 Aug 10 Jul 14 – Sep 1 90–120
Pac Choi Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 23 40–55
Parsnip Mar 31 Aug 10 Jul 14 – Aug 25 100–130
Patty Pan Squash Mar 17 Apr 21 Apr 28 Jun 16 – Jul 14 45–60
Peas Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Aug 4 55–70
Peppers Feb 10 Apr 21 Apr 28 Jun 30 – Sep 8 60–90
Pole Beans Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 55–70
Potatoes Feb 24 Apr 21 Apr 28 Jul 7 – Sep 15 70–120
Pumpkin Mar 17 Apr 21 Apr 28 Jul 28 – Sep 15 85–120
Purslane Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 30 40–60
Radicchio Mar 10 Mar 31 Apr 14 Aug 10 Jun 16 – Jul 21 60–80
Radish Mar 31 Aug 10 Apr 28 – May 19 22–35
Rhubarb May 5 365–730
Romanesco Mar 10 Mar 31 Apr 14 Aug 10 Jun 30 – Aug 11 75–100
Rutabaga Mar 31 Aug 10 Jun 23 – Jul 28 80–100
Salsify Mar 31 Aug 10 Jul 14 – Aug 25 100–130
Savoy Cabbage Mar 10 Mar 31 Apr 14 Aug 10 Jun 23 – Aug 18 70–110
Scallions Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Jul 7 50–70
Scarlet Runner Beans Feb 24 Apr 21 Apr 28 Jun 30 – Aug 4 60–80
Shallot Mar 10 Mar 31 Apr 14 Aug 10 Jul 14 – Sep 1 90–120
Shiso Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 50–70
Snap Peas Feb 24 Apr 21 Apr 28 Jun 23 – Aug 18 55–70
Snow Peas Mar 10 Mar 31 Apr 14 Aug 10 Jun 9 – Aug 4 50–65
Soybeans Apr 21 Jul 14 – Sep 8 80–120
Spaghetti Squash Mar 17 Apr 21 Apr 28 Jul 28 – Aug 25 85–100
Spinach Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jul 21 35–50
Squash (Summer) Mar 17 Apr 21 Apr 28 Jun 16 – Aug 18 45–65
Squash (Winter) Mar 17 Apr 21 Apr 28 Jul 21 – Sep 15 80–120
Sunchoke Apr 28 Aug 18 – Oct 13 110–150
Sweet Corn Apr 21 Jun 23 – Aug 4 60–90
Sweet Potatoes Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Tatsoi Mar 10 Mar 31 Apr 14 Aug 10 May 19 – Jun 23 35–50
Tomatillo Feb 24 Apr 21 Apr 28 Jun 30 – Sep 8 60–85
Tomatoes Feb 24 Apr 21 Apr 28 Jun 30 – Sep 8 60–85
Turnip Mar 31 Aug 10 May 12 – Jun 16 40–60
Watercress Mar 10 Mar 31 Apr 14 Aug 10 May 26 – Jun 30 40–60
Watermelon Mar 17 Apr 21 Apr 28 Jul 7 – Aug 25 70–100
Wax Beans Apr 21 Jun 16 – Aug 11 50–65
Winter Melon Feb 24 Apr 21 Apr 28 Jul 28 – Sep 15 90–120
Yard Long Beans Feb 24 Apr 21 Apr 28 Jun 23 – Aug 4 55–80
Zucchini Mar 17 Apr 21 Apr 28 Jun 16 – Aug 11 45–60

🍓 Fruits to Grow in Klickitat County

31 fruits that grow well in Zone 7b with planting dates for Klickitat County.

Show all 31 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries May 5 Aug 4 – Nov 17 90–180
Aronia May 5 730–1095
Blackberries May 5 365–730
Blueberries May 5 730–1095
Boysenberries May 5 365–730
Cantaloupe May 5 Jul 14 – Aug 18 70–90
Che Fruit May 5 1095–1825
Cranberries May 5 730–1095
Currants May 5 730–1095
Elderberries May 5 730–1095
Figs May 5 730–1825
Goji Berries May 5 730–1095
Gooseberries May 5 730–1095
Grapes May 5 730–1095
Ground Cherry May 5 Jul 14 – Sep 8 65–80
Hardy Kiwi May 5 1095–1825
Haskaps May 5 730–1095
Honeydew May 5 Jul 28 – Sep 8 80–110
Jostaberry May 5 730–1095
Kiwi May 5 1095–1825
Lingonberries May 5 730–1095
Loquat May 5 730–1825
Medlar May 5 1095–1825
Mulberries May 5 730–1825
Pawpaw May 5 1095–2555
Persimmon May 5 1095–2555
Pomegranate May 5 730–1095
Quince May 5 1095–1825
Raspberries May 5 365–730
Serviceberries May 5 730–1095
Strawberries May 5 Aug 4 – Dec 15 90–365

🌿 Herbs to Grow in Klickitat County

36 herbs that grow well in Zone 7b with planting dates for Klickitat County.

Show all 36 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Angelica Mar 10 Mar 31 Apr 7 Aug 10 365–730
Anise Mar 10 Mar 31 Apr 7 Aug 10 Jul 7 – Sep 22 90–120
Basil Feb 24 Apr 21 Apr 28 Jun 23 – Aug 25 50–75
Bee Balm Apr 21 Jul 21 – Oct 6 90–120
Borage Mar 10 Mar 31 Apr 7 Aug 10 Jun 2 – Jul 21 50–60
Caraway Mar 10 Mar 31 Apr 7 Aug 10 365–450
Catnip Apr 21 Jun 23 – Aug 25 60–80
Chamomile Mar 10 Mar 31 Apr 7 Aug 10 Jun 9 – Aug 18 60–90
Chervil Mar 10 Mar 31 Apr 7 Aug 10 May 19 – Jul 21 40–60
Chives Apr 21 Jun 23 – Sep 1 60–90
Cilantro Mar 10 Mar 31 Apr 7 Aug 10 May 19 – Jul 21 40–60
Comfrey Apr 21 Jun 23 – Sep 1 60–90
Cumin Mar 10 Mar 31 Apr 7 Aug 10 Jul 21 – Sep 22 100–120
Dill Mar 10 Mar 31 Apr 7 Aug 10 May 19 – Jul 21 40–60
Epazote Feb 24 Apr 21 Apr 28 Jun 16 – Aug 11 45–60
Fennel (herb) Mar 10 Mar 31 Apr 7 Aug 10 Jun 9 – Aug 18 60–90
Feverfew Apr 21 Jul 21 – Oct 6 90–120
Garlic Chives Apr 21 Jun 23 – Sep 1 60–90
Horehound Apr 21 Jul 7 – Sep 1 75–90
Hyssop Apr 21 Jun 30 – Sep 1 70–90
Lemon Balm Apr 21 Jun 23 – Aug 11 60–70
Lemon Thyme Apr 21 Jun 30 – Sep 1 70–90
Lovage Apr 21 Jun 30 – Sep 1 70–90
Marjoram Apr 21 Jun 23 – Sep 1 60–90
Mint Apr 21 Jun 23 – Sep 1 60–90
Oregano Apr 21 Jun 23 – Sep 1 60–90
Parsley Mar 10 Mar 31 Apr 7 Aug 10 Jun 9 – Aug 11 60–80
Rosemary Apr 21 Jul 14 – Dec 1 80–180
Rue Apr 21 Jun 30 – Sep 1 70–90
Sage Apr 21 Jul 7 – Sep 1 75–90
Savory Apr 21 Jun 16 – Aug 11 50–70
Sorrel Mar 10 Mar 31 Apr 7 Aug 10 May 19 – Jul 21 40–60
Tarragon Apr 21 Jun 23 – Sep 1 60–90
Thai Basil Feb 24 Apr 21 Apr 28 Jun 23 – Aug 25 50–75
Thyme Apr 21 Jun 30 – Sep 1 70–90
Valerian Apr 21 Aug 25 – Dec 1 120–180

🌸 Flowers to Grow in Klickitat County

53 flowers that grow well in Zone 7b with planting dates for Klickitat County.

Show all 53 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Mar 3 Apr 14 Apr 14 Jun 9 – Oct 13 60–75
Alliums Sep 14 Oct 12 – Nov 2 28–42
Anemones Aug 24 Sep 7 – Oct 5 90–120
Astilbe Feb 10 Apr 21 Jun 30 – Aug 25 70–100
Bachelor's Button Mar 3 Mar 10 Apr 14 Aug 24 Jun 16 – Sep 22 60–90
Begonias Feb 3 Apr 14 Jun 23 – Oct 27 70–90
Black-eyed Susan Feb 10 Apr 7 Apr 21 Jun 30 – Nov 10 60–80
Bleeding Hearts Feb 10 Apr 21 Jun 9 – Jul 14 60–90
Calendula Mar 3 Mar 10 Apr 14 Aug 24 Jun 2 – Sep 29 50–70
California Poppy Mar 17 Aug 24 May 26 – Aug 18 60–90
Celosia Mar 17 Apr 14 Apr 14 Jun 16 – Oct 27 60–90
Columbine Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 70–100
Coreopsis Feb 10 Apr 14 Apr 21 Jun 23 – Nov 10 60–80
Cosmos Mar 17 Apr 7 Apr 7 Jun 16 – Oct 20 60–90
Crocus Sep 14 Aug 10 – Aug 31 10–20
Daffodils Sep 14 Aug 17 – Sep 7 20–40
Dahlias Mar 24 Apr 21 Apr 21 Jun 30 – Nov 17 70–120
Daylily Feb 10 Apr 21 Jun 30 – Nov 10 60–90
Dianthus Feb 17 Mar 10 Mar 17 May 5 – Jul 28 60–80
Echinacea (Purple Coneflower) Feb 10 Apr 21 Apr 21 Jul 7 – Nov 10 70–90
Foxglove Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 80–120
Gaillardia (Blanket Flower) Feb 24 Apr 14 Apr 14 Jun 23 – Nov 24 70–100
Geraniums Feb 3 Apr 14 Jun 23 – Oct 27 70–100
Gladiolus Apr 14 Apr 14 Jun 23 – Nov 10 70–100
Hostas Feb 3 Apr 21 Jun 30 – Nov 3 60–90
Hyacinths Sep 14 Sep 7 – Sep 28 14–28
Hydrangeas Feb 3 Apr 14 Jun 23 – Oct 20 90–150
Impatiens Feb 17 Apr 14 Jun 23 – Oct 27 60–75
Irises Division Apr 21 Jun 9 – Jul 14 60–100
Larkspur Mar 17 Aug 10 May 26 – Aug 18 60–90
Lavender Feb 10 Apr 21 Jun 30 – Sep 22 90–120
Lilies Division Apr 14 Jun 23 – Oct 13 70–120
Lobelia Feb 10 Mar 17 May 12 – Jul 21 70–80
Lupine Feb 17 Apr 21 Apr 21 Jun 9 – Jul 14 75–100
Marigolds Mar 3 Apr 14 Apr 14 Jun 9 – Sep 29 50–70
Nasturtium Mar 17 Apr 14 Apr 14 Jun 9 – Oct 27 55–65
Pansy Feb 3 Apr 7 Aug 10 Jun 2 – Aug 25 70–90
Peonies Division Apr 21 Jun 16 – Jul 14 90–120
Petunia Feb 17 Apr 14 Jun 23 – Oct 20 70–90
Phlox Feb 10 Apr 21 Apr 21 Jun 30 – Sep 22 80–110
Portulaca Mar 17 Apr 14 Apr 14 Jun 2 – Oct 13 50–70
Ranunculus Aug 24 Sep 14 – Oct 12 90–120
Roses Feb 3 Apr 14 Jun 23 – Nov 3 90–180
Salvia Feb 17 Apr 14 Jun 23 – Oct 27 70–90
Sedum (Stonecrop) Feb 10 Apr 21 Aug 11 – Nov 3 60–90
Snapdragon Feb 3 Mar 17 Apr 7 Aug 24 Jun 16 – Sep 22 70–100
Sunflower Mar 24 Apr 14 Apr 14 Jul 7 – Oct 27 70–100
Sweet Alyssum Mar 3 Mar 17 Apr 14 Sep 7 May 26 – Sep 1 45–60
Sweet Pea Aug 24 Nov 2 – Jan 25 65–85
Tulips Sep 14 Aug 31 – Sep 21 15–30
Vinca (Annual) Feb 3 Apr 14 Jun 23 – Oct 27 70–90
Yarrow Feb 10 Apr 7 Apr 21 Jun 23 – Nov 10 60–90
Zinnia Mar 17 Apr 14 Apr 14 Jun 23 – Oct 27 60–70

Monthly Planting Guide for Klickitat County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is Klickitat County, WA?

Klickitat County 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 Klickitat County, WA?

Based on 29 years of NOAA weather station data, the median last spring frost in Klickitat County falls around April 14. In 8 out of 10 years, last frost lands between March 25 and May 6 — a 41-day window of variability. Use May 6 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in Klickitat County, WA?

The median first fall frost in Klickitat County arrives around October 19. In cold years it can arrive as early as September 29; in mild years as late as November 11. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in Klickitat County?

Klickitat County has a frost-free growing season of approximately 188 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 1.5 days per decade.

What is the soil like in Klickitat County for gardening?

Klickitat County has predominantly Silt Loam soil with a pH range of 5.3–6.8 and Moderately Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.

What is grown commercially in Klickitat County?

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

Is Klickitat County a good location for home gardening?

Klickitat County scores 68/100 (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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near Klickitat County (29 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: July 2026.

Sources & credits

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