As the flowering season draws to a close, a butterfly bush is littered with withered blossoms. This circumstance first affects the appearance, while secretly myriads of seeds develop. So the question is entirely valid. Read here why faded flowers on Buddleja davidii should give way.
Faded flowers can and should be removed regularly
Cutting off wilted flowers will limit spread
Its limited winter hardiness down to -20 degrees Celsius does not prevent a butterfly bush from acting as an invasive neophyte in the garden. This property results less from vigorous root growth than from its countless seeds. So that the majestic summer lilac species does not act as a plant imperialist, cut off the faded flowers in good time. That is how it goes:
- Clean out wilted inflorescences during and after flowering
- Use the scissors in good time before the growth of the capsule fruits
- Make the cut just above the next leaf node or bud
So that the seeds do not find their way from the compost to the bed, please dispose of the clippings in the household waste.