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Why do you find it so appealing? When it is covered in butterflies and moths, no other garden plant brings so much pleasure on a summer's day. And the flowers last all the way through from July to early September. With a cold glasshouse or sheltered wall, however, buddleja can be in flower most seasons of the year.17 aug. 2016

They perform best when planted in full sun (or at least in partial shade) and in fertile, well-drained soil. Dependent on the variety, plant around 5 to 10 feet apart for a gorgeous display. Plant Buddleia in Spring or in Autumn before the first frosts and water thoroughly after planting.17 jun. 2021

Once you've planted your buddleia, water it well and continue to water while the plant grows. However, do not over soak the soil and, once the buddleia plant is fully grown, water it sparingly. A butterfly bush does not need much moisture, and too much water can actually be detrimental to the plant.21 feb. 2019

Varieties of Buddleja davidii can become very tatty if not properly pruned. ... If hard pruned in early spring, the most vigorous varieties will still grow to 3m tall and 2m across by summer, while the smaller forms, such as 'Nanho Blue', can be kept to less than 1.5m in height and spread.22 mrt. 2019

Butterfly bushes, a double-edge sword

Its popularity has real reasons: the plant grows fast, flowers very early on in its life cycle, and produces flowers throughout its life span of up to 30 years. The flowers smell good, are very showy and pretty, with large clusters that bloom for several days.14 sep. 2020

The shrub usually begins blooming in early to midsummer, and should continue blooming through fall, depending on growing zone and weather. Gardeners have little to do in order to get a butterfly bush to bloom, even in its first year.6 jul. 2020

Butterfly bush is hard to beat for sheer flower power. These easy, sun-loving shrubs come in an array of rich colors, bloom continuously from summer to fall, and attract butterflies and hummingbirds by the score.18 mrt. 2021

Since buddleias range in height from 1 to 9 feet, it's important to select the right cultivar for the space. Full size plants such as Black Knight can be planted against a fence or among other shrubs. Mid-size cultivars such as Buzz Sky Blue are excellent for the back of a perennial border.

The shrub is actually considered to be invasive, meaning it competes with the native plants in the area and will continue to spread and be harmful to the local eco-system. ... Not only is butterfly bush harmful for the eco-system but it's also an ineffective host plant for butterflies despite the name.9 jun. 2015