They are often beautiful, drawing admiration from human observers and even attracting essential pollinators like bees are planted in our gardens. But what if they cross the fence? These invaders can pose a significant threat to biodiversity.
In their new habitat, these attractive species can quickly gain a foothold, outcompeting native flora and disrupting established ecological balances.
As they spread, they may displace indigenous plants, deplete resources, and alter habitat structures. This disruption can have cascading effects on local wildlife, from insects to larger animals, which rely on the native plant community for food and shelter.
Buddleja, commonly known as butterfly bush, is considered invasive and very common in Northern Italy and Ticino. It is considered a moderate concern as it has the potential to disrupt natural habitats, especially in urban and disturbed environments where it finds suitable conditions for growth. Efforts to manage and control its spread may be necessary to prevent its negative impacts on native plant species and ecosystems.
According to Ticino officials, Buddleja should not be planted. In its place can be planted common privet (Ligustrum vulgare), lilac (Syringa vulgaris) or spindle (Euonymus europaeus).
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