Butterfly Bush (Buddleia)
This time of year, you’re likely to see Butterfly Bush (Buddleia) front and center at many independent garden centers, often labeled as a “Proven Winner.” With its bright blooms and butterflies flitting about, it’s easy to assume this plant is a great addition to any pollinator garden.
But despite its name and appearance, Butterfly Bush is not as beneficial as it seems. It’s an invasive species that spreads aggressively by wind-dispersed seeds, forming dense thickets that crowd out essential native plants. While it does attract adult butterflies, it doesn’t support the full life cycle. Native baby caterpillars can’t feed on it, which means it does little to help our already declining butterfly populations.
If you’re hoping to support butterflies, bees, and the broader ecosystem, consider native alternatives that serve as both nectar sources and host plants. Species like Spicebush, milkweeds, asters, goldenrods, and Joe Pyeweed not only feed adult butterflies but also nourish their young. These plants are essential for Monarchs and other pollinators to thrive. They will bring both beauty and biodiversity to your garden.
Two other ecologically harmful plants to be aware of and still being sold in garden centers are Barberry (Berberis vulgaris) and English Ivy (Hedera helix).
Barberry is a common ornamental shrub, but it’s also a serious ecological threat. This plant is an invasive species in the U.S. and forms dense thickets that crowd out native understory plants, disrupting local biodiversity. While its deep burgundy foliage and red berries may seem appealing, those berries are easily spread by birds, accelerating its invasion into natural areas.
What many people don’t realize is that Barberry also creates a humid microclimate that is highly favorable to blacklegged ticks, the primary vector of Lyme disease. Studies have shown that areas dominated by Barberry tend to support significantly higher tick populations, increasing the risk of disease transmission.
If you have Barberry on your property, consider replacing it with ecologically beneficial alternatives such as Redosier Dogwood or Winterberry Holly. These native shrubs support local wildlife and contribute to a healthier, more balanced landscape.
English Ivy (Hedera helix).
English Ivy is wreaking havoc across New Jersey but you’ll still find it for sale at many garden centers being sold as a ground cover. This plant is a fast-growing vine that quickly takes over gardens, climbs trees and buildings, and displaces native plants. Its dense growth chokes out wildlife habitat, weakens trees, and can cause serious damage to your home’s exterior.
Instead, consider native alternatives. Ground covers like golden ragwort, wild ginger, and creeping phlox support local ecosystems. And if you’re looking for a vine, try native coral honeysuckle. Your garden will benefit, and the hummingbirds will love it.
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