Buddleja

A fast-growing shrub with long spikes of fragrant purple, pink, or white flowers that are a magnet for butterflies and other pollinators. Thrives in full sun and can be pruned hard each year to keep it compact. Its flowers are a major nectar source for many butterfly and bee species, though it does not host caterpillars, so it works best planted alongside host plants like milkweed or curry leaf to support a full butterfly lifecycle.