Q: I think what I have is a crown of thorns plant that is several years old. All of a sudden, it is droopy, losing leaves and turning yellow. How can I revive this plant? (e-mail reference) A: A crown ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The crown of thorns is a striking houseplant with bright green foliage and tiny flowers enclosed with ...

The crown of thorns plant, named for the wreath of spines Christ was forced to wear during his crucifixion, has come a long way in a few decades. We’ve gone from a single red-flowered species ...

Few plants have been tinkered with by breeders as much as crown of thorns (Euphorbia milii) and its relatives. The result is a bevy of beautiful varieties and hybrids that flower most of the year.