Best Plants For Boulder, WY

A variety of plants are suitable for Boulder's climate. According to our data, the growing zone for the area is 4a, with average annual lows of -30 to -25 degrees Fahrenheit. Scroll down for a full list of the best plants for Boulder, WY based on our analysis of the region's climate.

If growing food is your aim, vegetables hardy to Boulder include beets, broccoli and brussels sprouts, while fruits like apples, apricots and blackberries will flourish.

For flower beds, go with choices like astilbe (astilbe), black-eyed susan (rudbeckia hirta) and bleeding heart (dicentra spectabilis) for the best results.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Seed Starting Trays

Perfect for starting seeds indoors before transplanting to your garden.

Trees for Boulder

American Basswood

American Elm

American Sycamore

Balsam Fir

Black Cherry

Black Walnut

Blue Spruce

Canadian Hemlock

Eastern Hemlock

Eastern White Pine

Hackberry

Hawthorn

Honey Locust

Northern Red Oak

Norway Spruce

River Birch

Sugar Maple

Tamarack

White Ash

White Spruce

Fruits for Boulder

Apples

Apricots

Blackberries

Blueberries

Cherries

Currants

Elderberries

Gooseberries

Grapes

Hardy Kiwi

Highbush cranberries

Mulberries

Peaches

Pears

Plums

Quince

Raspberries

Rhubarb

Saskatoon berries

Strawberries

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Flowers for Boulder

Astilbe (Astilbe)

Black-Eyed Susan (Rudbeckia hirta)

Bleeding Heart (Dicentra spectabilis)

Clematis (Clematis)

Coral Bells (Heuchera)

Coreopsis (Coreopsis)

Daylily (Hemerocallis)

Delphinium (Delphinium)

Hosta (Hosta spp.)

Lavender (Lavandula angustifolia)

Lily-of-the-Valley (Convallaria majalis)

Lupine (Lupinus)

Pansies (Viola x wittrockiana)

Peony (Paeonia lactiflora)

Phlox (Phlox paniculata)

Purple Coneflower (Echinacea purpurea)

Shasta Daisy (Chrysanthemum x superbum)

Siberian Iris (Iris sibirica)

Veronica (Veronica)

Yarrow (Achillea millefolium)

Vegetables for Boulder

Beets

Broccoli

Brussels sprouts

Cabbage

Carrots

Cucumbers

Green beans

Kale

Lettuce

Onions

Parsnips

Peas

Potatoes

Radishes

Spinach

Sweet Corn

Swiss Chard

Tomatoes

Turnips

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 Boulder, WY climate.

Map of WY Hardiness Zones

Choose plants with your zone in mind

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

Deluxe Plastic Watering Can

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

Raised Garden Bed Kit

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

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Worm Composting Kit

Complete kit for starting your own worm composting system.

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.

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Worm Composting Kit

Complete kit for starting your own worm composting system.

Raised Garden Bed Kit

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

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Raised vegetable bed rows in zone 8a

Boulder's Temperature

The USDA growing zone is 4a in Boulder, WY. 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 Boulder is -30 to -25 degrees Fahrenheit. If you would like to learn more, visit our page on the growing zone for Boulder, WY.

Map of Boulder

Fiskars Garden Harvest Basket

Sturdy basket for collecting and carrying your garden harvest.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Hoeing Ain't Easy Garden Sign

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

Raised Garden Bed Kit

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

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

All Towns In WY

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.

Reusable Grow Bags

Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.

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.

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Brass Watering Can

Elegant brass watering can with classic design and durability.

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.

Hoeing Ain't Easy Garden Sign

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

Large Greenhouse Kit

Spacious greenhouse for extending your growing season.

Hydroponic Garden Grow Kit

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

Rustic Iron Garden Trellis

Sturdy trellis for supporting climbing plants and vines.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.