Red Hot Poker Kniphofia Uvaria Royal Castle Hybrids is an impressive perennial native to the high grassy slopes of South Africa's Drakensberg Mountains. Red Hot Poker seeds can be started indoors, and the seedling can be transplanted outdoors after last frost. Also called Torch Lily and Tritoma, Kniphofia Uvaria Royal Castle Hybrids plant has sword-shaped leaves, tall stems, and unique flowers that have colors changing white to yellow then orange and finally red,