Best Plants For New Castle, CO

plants by zone map for New Castle, CO

A variety of plants are suitable for New Castle's climate. According to our data, the growing zone for the area is 6a, with average annual lows of -10 to -5 degrees Fahrenheit. Scroll down for a full list of the best plants for New Castle, CO based on our analysis of the region's climate.

If growing food is your aim, vegetables hardy to New Castle include beans, beets and bell peppers, while fruits like apples, apricot and blackberries will flourish.

For flower beds, go with choices like black-eyed susan, bleeding heart and butterfly bush for the best results.

Trees for New Castle

American Elm
Balsam Fir
Black Cherry
Black Walnut
Colorado Blue Spruce
Common Juniper
Dogwood
Eastern Redbud
Eastern White Pine
Honey Locust
Japanese Maple
Northern Red Oak
Norway Spruce
Paper Birch
Pin Oak
Red Maple
Sugar Maple
Sweetgum
White Ash
Yellow Buckeye

Fruits for New Castle

Apples
Apricot
Blackberries
Blueberries
Currants
Elderberries
Figs
Grapes
Hardy kiwi
Mulberries
Nectarines
Peach
Pears
Persimmons
Plums
Quince
Raspberries
Sour cherries
Strawberries
Sweet cherries

Flowers for New Castle

Black-eyed Susan
Bleeding heart
Butterfly Bush
Columbine.
Coneflower
Daffodils
Daylily
Geranium
Hydrangea
Lavender
Marigold
Pansies
Peony
Rhododendron
Rose
Salvia
Shasta Daisy
Sunflower
Tulips
Zinnia

Vegetables for New Castle

Beans
Beets
Bell Peppers
Broccoli
Carrots
Cauliflower
Corn
Cucumbers
Eggplant
Green Onions
Kale
Lettuce
Peas
Radishes
Spinach
Squash
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 New Castle, CO climate.

Some of the best vegetables for New Castle, CO include beans, beets and bell peppers. Other recommended vegetables include Broccoli, Carrots and Cauliflower based on New Castle's USDA hardiness zone.

Map of CO Hardiness Zones

plants by zone map for New Castle, COChoose plants with your zone in mind

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

Best Time to Plant in New Castle

Check the growing calendar for New Castle at the Old Farmer's Almanac to see the best planting times for the region.

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.

@@town.primaryImage.altRaised vegetable bed rows in zone 8a

New Castle's Temperature

USDA Growing Zone: 6a

Zip Codes: 81647

Longitude: -107.5267

Latitude: 39.5776

Lowest Avg Temperatures (F): -10 to -5

The USDA growing zone is 6a in New Castle, CO. 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 New Castle is -10 to -5 degrees Fahrenheit. If you would like to learn more, visit our page on the growing zone for New Castle, CO.

Map of New Castle

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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.

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.

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