Browningia caineana - Castellanosia caineana E20Browningia caineana (syn. Castellanosia caineana) is a striking treeforming cactus with greygreen, segmented columnar stems bearing pronounced ribs and showy dimorphic spinesstrong spines lower down and fine bristles near flowering tips. This architectural species can grow up to 56 m tall, branching at the base to form a dramatic desert silhouette. In warm seasons, it produces deep red, funnelshaped flowers at the top of stems, creating a vibrant

It thrives in full sun to bright indirect light

These blooms adorn the plant from spring through fall

Plant in full sun or part shade

approximately once every two to three weeks

with colonies eventually spreading several feet across

Typically reaching heights of 10 to 20 feet with a similar spread

it benefits from moderate watering during the summer months

and lined with gold marginal teeth

Thrives best in USDA hardiness zones 9-11

allowing the soil to dry out almost completely between waterings

but under optimal conditions

powdery blue-green leaves