Houseplants often come to mind when you think of growing succulents. But many of these massive options grow several feet tall and make a statement outdoors.

A 60-year-old cactus has flowered at such an alarming rate it's grown through its greenhouse roof and can be seen from the neighbouring village. The plant, known as a succulent, is between 55 and 60 ...

"Cacti and succulents are smarter than the average plant," says Larry Lee, the horticulturist managing the University of California Botanical Garden's world-class cactus and succulent collection.

A New Zealand woman had no idea her succulent would burst into the sky overnight. Photo / Brian and Gaye Mullan A New Zealand woman who bought a small, spiky succulent plant for her front garden ...