What Zones Can Bougainvillea Be Planted. 16062020 Bougainvillea plants thrive in cultivation in climates and conditions that mimic their native environment. However you really should wait until May if you dont want to take any chances.
The earliest that you can plant bougainvillea in Zone 7b is April. 20112008 Although it is frost-sensitive and hardy in zones 9b and 10 bougainvillea can be used as a houseplant or hanging basket in cooler climates. 21092017 The bougainvilleas flowers are actually tiny and white but the bracts are large showy and can be shades of red orange or purple.
Bougainvillea are treated as annuals and brought indoors to winter-over.
In these zones gardeners can grow bougainvillea outside. 24092017 In regions with mild winters zones 9 to 11 where it can be planted outdoors that can sometimes be all year but in more Mediterranean climates it will go semi-dormant and stop blooming over the winter. The last month that you can plant bougainvillea and expect a good harvest is probably August. To ensure that bougainvillea blooms abundantly strategically put it at a location where it is exposed to the direct sunlight for at least 5-6 hours or more in a day.