QuestionsHow to growTrees and ShrubsPlantingButterfly bush? 0 Vote Up Vote Down ita hannon asked 14 years ago I purchased a yellow butterfly bush and i want to protect it through the winter, i have it in a tunnel in a pot do i plant it outside in the ground or keep it in the tunnel? 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago The yellow butterfly bush, Buddleja x weyeriana, is hardy and can be planted outside. It does not need to be in a tunnel.