Quart plant from Bougainvillea ‘Barbara Karst’. This is the best flowering of the large Bougainvillea and it is considered to be an interspecific hybrid involving two or more of the species Bougainvillea spectabilis, B. glabra and B. peruviana. A moderately-vigorous large evergreen vine with dull dark green broadly-ovate pointed leaves that have a slightly wavy margin. It produces magenta red bracts all along the entire length of its stems in multiple flushes over a very long season from late spring through fall and often into winter in mild years with the small white flowers conspicuous against the bracts. Barbara Karst is a no-fuss, low-maintenance bougainvillea. Whether planted in the ground or a garden pot, full sun and occasional soaking are all it requires? once the roots are established. Zones 10 to 11.