What to Plant in June in Washington State (PNW Guide)

June is when Pacific Northwest gardens start to feel alive.

The soil is finally warming up, seedlings begin growing quickly, and many plants that struggled through April suddenly take off. It’s also one of the best months for beginner gardeners because planting becomes far more forgiving.

If May was about caution, June is about momentum.

In most parts of western Washington, the risk of frost has passed, the days are long, and warm-season crops can finally settle in properly. There’s still plenty of time to plant vegetables, flowers, and herbs — especially if you focus on fast growers and succession planting.

Vegetables to Plant in June

Beans

Bush beans and pole beans thrive in warm June soil and usually germinate quickly this time of year.

Good options for beginners:

• Bush beans

• Pole beans

• Runner beans

Pole beans are especially useful in smaller gardens because they grow vertically and produce heavily through summer.

Cucumbers

June is often a better cucumber month than May in the PNW because nights are warmer and growth becomes more reliable.

Plant:

• Pickling cucumbers

• Slicing cucumbers

• Lemon cucumbers

Cucumbers love:

• warmth

• regular watering

• rich soil

• consistent moisture

Summer Squash & Zucchini

If you haven’t planted zucchini yet, June is completely fine.

In fact, many PNW gardeners prefer June planting because cold spring soil can stunt squash early on.

Give squash:

• lots of room

• regular water

• airflow between leaves

One or two plants is usually enough for most households.

Carrots

June is excellent for succession sowing carrots.

Instead of planting one giant crop all at once, sow small rows every few weeks for a longer harvest season.

Carrots prefer:

• loose soil

• steady moisture

• thinning early

Lettuce & Salad Greens

You can still plant lettuce in June, especially:

• leaf lettuce

• arugula

• spinach (early June)

• mustard greens

As temperatures rise, try growing greens where they receive:

• morning sun

• afternoon shade

This helps slow bolting during hotter periods.

Beets

Beets grow surprisingly well through summer in western Washington.

Direct sow seeds and keep the soil consistently moist while germinating.

Both the roots and leaves are edible, which makes them useful in smaller gardens.

Herbs to Plant in June

June is one of the easiest months to establish herbs.

Great choices include:

• basil

• parsley

• dill

• cilantro

• chives

Basil

Basil finally becomes happy in June warmth.

If your basil struggled earlier in spring, it was probably reacting to cold nights rather than anything you did wrong.

Basil likes:

• warm soil

• sun

• consistent watering

• harvesting often

Pinching the tips regularly helps plants become fuller instead of tall and leggy.

Flowers to Plant in June

Zinnias

Zinnias love warm weather and are one of the easiest cut flowers for beginners.

They:

• grow quickly

• bloom heavily

• attract pollinators

• handle summer heat well

They also fit beautifully into relaxed cottage-style planting.

Cosmos

Cosmos are almost perfect for beginner gardeners.

They tolerate:

• average soil

• inconsistent watering

• mild neglect

And they flower for months.

The slightly airy, loose structure works especially well in natural-style gardens.

Marigolds

Marigolds are useful companion plants and easy filler flowers.

They work well:

• near vegetables

• in containers

• in borders

• mixed with zinnias and herbs

Grouping them in small clusters usually looks more natural than spacing them evenly.

June Gardening Tips for the PNW

Don’t Overwater Early Summer Gardens

A common beginner mistake is watering lightly every day.

Instead:

• water deeply

• water less often

• encourage deeper roots

As temperatures warm, deep watering becomes more important than frequent shallow watering.

Mulch Matters More Than You Think

By June, mulch starts becoming incredibly helpful.

Mulch helps:

• hold moisture

• reduce weeds

• protect soil life

• stabilize soil temperature

Even a thin layer can make a noticeable difference during summer.

Succession Planting Keeps Gardens Productive

June is the perfect time to stagger crops.

Instead of planting everything once:

• sow small amounts regularly

• replace harvested crops quickly

• keep empty spaces productive

This keeps gardens fuller and harvests more consistent through summer.

You’re Not Behind

One of the biggest misconceptions in gardening is that everything must be planted in early spring.

In the Pacific Northwest, June is still a major planting month.

Warm soil often leads to:

• faster growth

• stronger seedlings

• fewer setbacks

Many plants started in June quickly catch up to — or even outperform — plants that struggled through cold spring weather.

Gardening in the PNW is less about racing the calendar and more about learning the rhythm of the season.

And June is when that rhythm finally starts to feel easier.