3 Debunked Butterfly Bush Myths & Misconceptions

Butterfly bush (Buddleia or Buddleija) is a vibrant flowering shrub with fragrant, nectar-rich blooms that attract plenty of pollinators all summer long. Despite it's popularity (among gardeners and pollinators), there are many myths and misconceptions surrounding this shrub. While select varieties can be prolific self-seeders, the truth is more nuanced, as there are many butterfly bush varieties that are seedless and non-spreading. Here, we're setting the record straight on common butterfly bush myths. When selected and grown responsibly, it can be a true workhorse in a pollinator garden, and become a sought-after dessert to bees, butterflies, and hummingbirds during the season.

When a plant is labeled as invasive, it means that it is non-native to that specific area and has the potential to spread aggressively, outcompeting native plants for resources like sunlight and water. While butterfly bush isn't a native shrub, it's only considered an invasive species in Oregon and Washington. It's actually quite common for plants to be considered invasive in certain areas of North America but not others, as climates and local ecosystems impact how they grow and compete with native species. That's why it's a good idea to research your local guidelines - what's invasive in one state (or even one city or county) might not be an issue just a short distance away. The good news? Many new cultivars of butterfly bush are now seedless, certified non-invasive, and even approved for sale in Oregon and Washington, including the popular 'Miss Molly' and Lo & Behold® 'Blue Chip Jr.' butterfly bush.

For a butterfly bush to be classified as non-invasive, it has to meet two key criteria: a seed germination rates below 2% and origin from a wide cross-hybridization. This means it's bred from two different Buddleia species, with only one potentially being the common Buddleia davidii. This specialized breeding process can result in little to no seed production and non-viable pollen, drastically reducing the chance of unwanted spread. That means you can confidently plant these butterfly bushes without worrying about them taking over your garden. You'll often see seedless butterfly bush varieties differentiated and referred to as Summer Lilac, Nectar Bush, or Seedless Butterfly Bush - different names, same pollinator-friendly blooms!

While butterflies and other pollinators can't rely solely on butterfly bush nectar for survival, that doesn't mean it isn't an important nectar source during the growing season! When paired with host plants and native shrubs or perennials, butterfly bush plays a valuable role in a thriving a pollinator garden. Think of its sweet, honey-scented flowers as a decadent dessert for bees, butterflies, hummingbirds, and moths, while other plants provide more essential resources through different stages of pollinator life cycles. By combining butterfly bush with a variety of other pollinator-friendly plants, you'll create a garden that's beautiful AND beneficial.

• Diversify pollinator resources. Include host plants that provide food for pollinator larvae, like milkweed for monarch caterpillars. Some caterpillars are picky eaters, while more generalist feeders can feed on a variety of plants - so a mix is best!
• Plant a variety of nectar-rich perennials and shrubs. A well-rounded garden ensures pollinators have access to plenty of nectar, and will keep them coming back for more.
• Plan for year-round blooms. While butterfly bush provides abundant nectar in summer, make sure to include plants that flower in spring and fall to support pollinators throughout the seasons.
• Support wildlife in winter. Choose plants that offer berries for food and a full habit for shelter, helping wildlife survive cold temperatures.
• Prioritize native plants. The National Wildlife Federation recommends that at least 70% of your garden plants be native to your area. Since butterfly bushes are known as "exotic plants" (not naturally found in North America), it's best to pair them with plenty of native species for a balanced habitat.