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What is this To help gardeners understand which plants will grow well for them, the entire USA has been segmented into ‘Plant Hardiness Zones’.

All About Butterfly Bush

By Charlie Nardozzi, Garden expert, radio host, and author.

Butterfly bushes have become very popular due to the growing interest in butterfly gardens. These beautiful shrubs make attractive landscape plants, even when not attracting butterflies, bees, hummingbirds and beneficial insects. The tall species types can grow 10 to 12 feet high and make a great backdrop plant in a flower border. Smaller versions have been bred to grow 2 to 4 feet tall, and fit more easily into most modern landscapes.

Butterfly bushes are abundant flowering shrubs. Starting in midsummer, on new wood that grew in spring, they flower until frost, producing blooms in a wide range of colors. The flowers also have a honey-like fragrance that's strongest at midday. There are many butterfly bush varieties available to grow. The most common types are in the Buddleia davidii group. Hailing from Tibet and China, these are the most cold hardy. These hybrids grow 6 to 10 feet tall and generally are hardy in USDA zones 5 to 10. Varieties include 'Black Knight' with its graceful branches and deep-purple colored flowers, 'Harlequin' with its rose-purple colored flowers and cream colored margins on the leaves, and 'White Bouquet' with very fragrant white blooms. Some dwarf versions of this group include 'Sky Blue' with light-blue colored flowers and 'Hot Raspberry' with raspberry-pink colored flowers. Both varieties grow on 3- to 4-foot tall plants.

A Ruby Throated Hummingbird in search of nectar visits a Butterfly Bush in bloom.

There are other species of butterfly bushes from around the world worth trying. Lindley's butterfly bush hails from China with green leaves, cinnamon-colored bark and 2 foot long lavender colored flowers. It can be limbed into a small tree. From South Africa comes the Loricata butterfly bush that has white or pale-yellow colored flowers. It's unusual in that it flowers on old wood, so should be pruned after the first flush of blooms in summer. Snow White butterfly bush also hails from China and can grow 15 feet tall with pale, lavender-colored blooms.

Butterfly Bush

  • Butterfly Bush White Ball

    $24.98

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  • Butterfly Bush Black Knight

    Starting at $11.98

    Sale: $5.99

    Per Plant - 2.5" pot


Grow tall butterfly bush varieties in the back of your flowering border. They will make a nice backdrop to other butterfly favorites such as butterfly weed and echinacea. Also, when you cut back the shrubs in spring, they will be hidden from view by other early-growing perennial flowers. Plant butterfly bushes near windows or doors where you can enjoy the scent all summer and the sight of the butterflies. You can also plant butterfly bushes in a mixed-shrub border with shrubs, such as elderberry, smokebush spirea, and weigela, adding color and interest in summer and fall. Since butterfly bushes are deer resistant, planting them along the forest edge or in a shrub border shouldn't be a problem. In cold winter areas, don't plant butterfly bushes in windy locations, or protect them with a barrier of burlap erected in fall to reduce dieback of the stems.

Use dwarf versions in the middle or front of your garden or even in rock gardens. These won't require such drastic pruning to flower well and they’ll stay a more manageable size. Pair butterfly bushes with Verbena bonariensis, pineapple sage, purple salvia, lantana, swamp milkweed and asters. Some dwarf varieties of butterfly bush can be grown well in containers. In cold climates, these containers need to be protected in winter or brought into a warmer garage or shed.

Keeping up with the deadheading can be a challenge on these larger shrubs since they flower so well and the dead flowers are unsightly. To avoid the problem of self-sowing, try to deadhead consistently all summer not letting the seed to set.

Many pollinators visit Butterfly Bushes - including honey bees, bumble bees and native bees.

Butterfly bushes are considered invasive in some states (Oregon, Washington, and Hawaii), so care should be given to not let them spread into the wild. Where they're native, they're a pioneer species that moves into open, sunny disturbed lands. They can set millions of seeds in one season. In the wild, the plants eventually get crowded out by taller growing shrubs and trees. In the garden, these seeds can be a problem without these natural controls in place. While deadheading will help, growing varieties such as 'Blue Chip' and some species types such as Buddleia fallowiana that have sterile seed or low-viability seed, will reduce the threat. Butterfly bushes are less weedy in colder climates.


About the Author: Charlie Nardozzi is a nationally recognized garden speaker, author, consultant, radio and TV show host. He delights in making gardening information simple, easy, fun and accessible to everyone. Visit his website, GardeningwithCharlie.com for how-to gardening information, and for more about Charlie.

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