Cow's Horn Cactus - Euphorbia grandicornis houseplant or slightly funnel-shaped

or slightly funnel-shaped

Lobivia Winteriana is an exotic plant to grow indoors as well as outdoors

The flowers are produced in early summer and remain open for five or six days

They seem to need a cooler winter dormancy to bloom properly

Cow's Horn Cactus - Euphorbia grandicornis houseplant or slightly funnel-shapedEuphorbia grandicornis is commonly known as the cow's horn cactus, rhino thorn, or the big horn. It belongs to the Euphorbiaceae family and is native to a few places, including South Africa, Switzerland, and Kenya. Growing up to a height of 1. 5 6. 5 feet , this multi stemmed shrub goes dormant in winter. Growth Rate The Rhino Thorn is a relatively fast growing cactus, and it stays content in its position and with its soil for many years. Flowering