Best Plants For Mercer Island, WA

A variety of plants are suitable for Mercer Island's climate. According to our data, the growing zone for the area is 9a, with average annual lows of 20 to 25 degrees Fahrenheit. Scroll down for a full list of the best plants for Mercer Island, WA based on our analysis of the region's climate.

If growing food is your aim, vegetables hardy to Mercer Island include beets, bell peppers and broccoli, while fruits like apples, apricots and asian pears will flourish.

For flower beds, go with choices like begonia, bougainvillea and cosmos for the best results.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Trees for Mercer Island

Avocado Tree

Bald Cypress

Black Walnut

Camellia Japonica

Crape Myrtle

Eastern Red Cedar

Fig Tree

Lacebark Elm

Live Oak

Meyer Lemon Tree

Pink Dogwood

Pomegranate Tree

Red Maple

River Birch

Satsuma Mandarin Tree

Southern Magnolia

Sweet Gum

Sycamore Tree

Washington Palm

Weeping Willow

Fruits for Mercer Island

Apples

Apricots

Asian Pears

Avocados

Figs

Grapes

Guavas

Jujubes

Kiwifruit

Kumquats

Lemons

Limes

Loquats

Mulberries

Olives

Oranges

Passionfruit

Peaches

Pears

Persimmons

Plums

Pomegranates

Brass Decorative Faucet Handle

Elegant brass handle to enhance your garden faucet.

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.

Flowers for Mercer Island

Begonia

Bougainvillea

Cosmos

Daffodil

Dahlia

Daisy

Daylily

Geranium

Hibiscus

Impatiens

Iris.

Lantana

Lavender

Marigold

Periwinkle

Petunia

Rosemary

Sunflower

Sweet Pea

Zinnia

Vegetables for Mercer Island

Beets

Bell Peppers

Broccoli

Cabbage

Carrots

Collard Greens

Cucumbers

Eggplant

Green Beans

Kale

Lettuce

Okra

Onions

Radish

Spinach

Squash

Sweet Potatoes

Swiss Chard

Tomatoes

Zucchini

Frequently Asked Questions

Have questions about plants for your area? Check out our FAQ below for quick answers to common questions about what plants grow best in the Mercer Island, WA climate.

Map of WA Hardiness Zones

Choose plants with your zone in mind

Choosing plants based on the growing zone for Mercer Island ensures that your plants will be able to survive the lowest annual temperatures in your area of Washington.

Cluck Around Sign

Whimsical sign for your chicken coop area.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Need Gardening Gear?

The Plant Guide Online has selected some of our favorite products to help you with your next growing project. From seed starting trays and fertilizers to decor and lifestyle items, we think you'll love what we've selected.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

Cluck Around Sign

Whimsical sign for your chicken coop area.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Mercer Island's Temperature

The USDA growing zone is 9a in Mercer Island, WA. This is a measure of the lowest temperature that a plant can survive, helping to decide what plants would be suitable for the region's climate. According to our records, the average annual extreme minimum temperature in Mercer Island is 20 to 25 degrees Fahrenheit. If you would like to learn more, visit our page on the growing zone for Mercer Island, WA.

Map of Mercer Island

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Raised Garden Bed Kit

Easy-to-assemble raised garden bed for better soil control and drainage.

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Hoeing Ain't Easy Garden Sign

Fun and decorative garden sign to add personality to your space.

Metal Seed Storage Box

Organized storage solution for your seed collection.

All Towns In WA

Tools You'll Love

The Plant Guide Online has selected some of our favorite products to help you with your next growing project. From seed starting trays and fertilizers to decor and lifestyle items, we think you'll love what we've selected.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Hydroponic Garden Grow Kit

Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Deluxe Plastic Watering Can

High-capacity watering can with comfortable grip and precise spout.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Plants For Other States

Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.