Buddleia: Greenhouse Plants
FF – frost free only / C – cool, minimum of 7°C (45°F)
Asia, America, South Africa
Not normally thought of as greenhouse plants there are some species that are too tender to do well outside.asiatica from the East Indies has narrow leaves, the undersides being downy and white lending a silvery appearance to the whole shrub. Sweet-scented white flowers are produced very early in late winter/early spring. It can be trained up a greenhouse wall or grown as a shrub by pruning hard after flowering. This is suitable for frost free conditions. B. madagascariensis needs slightly warmer conditions to do well and will become rampant if not pruned hard every year after flowering. The flowers are orange-yellow in long panicles of 15 cm (6 in) or more. Take care to wear a dust mask and overall when pruning large specimens as the down on the leaves can cause problems. B. tubiflora from Brazil is much more compact and requires cool conditions. It makes a very good pot plant and bears vivid spikes of orange flowers.