The plant that defines the Perth summer garden. Bougainvillea produces vivid papery bracts from spring through autumn that are one of the most familiar sights in the state. It is one of the most drought-tolerant flowering plants available once established - it actually flowers more prolifically when slightly stressed. Full sun - the more sun, the more flowers. Well-drained soil. Drought tolerant once established - reduce watering to encourage flowering. Low-phosphorus fertiliser applied lightly in spring. Prune after the main flowering flush to control size and promote repeat flowering. Handle with care - thorns are sharp.