How To Keep Buddleia Flowering. 22032021 Cover the container with a plastic bag to keep the humidity high and retain the heat and place it in a warm location with filtered light. 26092018 Buddleias need full sun and fertile well-drained soil.
Buddleias bloom on new wood. 12062021 In spring and summer remove the spent flower clusters promptly. Seed pods develop when the flower clusters are left on the plant.
However severe frost that sometimes arrives in spring thanks to the unpredictable British weather can cause damage to buddleja so when to start pruning often depends on the weather.
Otherwise they will survive in most conditions. However severe frost that sometimes arrives in spring thanks to the unpredictable British weather can cause damage to buddleja so when to start pruning often depends on the weather. Mary Walton Upchurch explains how to keep it in check. 20112020 To keep your butterfly bushs seeds from invading natural areas its vital to cut back the flower heads before they go to seed.