The pencil cactus, otherwise known as a 'milk bush' or euphorbia tirucalli, is a variety of cacti known for its signature, ...

The best time to prune is January or February, right after it blooms. Pruning helps encourage the cactus to branch off and grow a fuller plant, but you don't want to prune it after mid-summer to ...

The cactus has a dull-gray, fleshy stem with shrubby branches that can grow to a lofty height of 6 feet. It has relatively small, scale-like bright red flowers and yellow egg-shaped fruit. HABITAT: ...