喜花草（学名：Eranthemum pulchellum）为爵床科喜花草属的植物。分布于喜马拉雅山、印度以及中国大陆的南部、西部等地，生长于海拔190米至800米的地区。

可爱花（广州植物志）、爱春花（种子植物名称）、蓝花仔（香港）。

Eranthemum pulchellum (Eranthemum nervosum, English: blue eranthemum, or blue sage) is a strongly branched shrub, popular with gardeners in tropical India and China because of the spikes of flowers that are bright gentian blue - an unusual color in the tropics. The flowers appear from green-and-white veined bracts that remain after the blooms fall, forming a column several inches long. The hairy leaves are large and dark green. A sprawling shrub which may reach a metre or more in height, E. pulchellum is usually kept lower and bushier through pruning. Light shade is preferred in a garden; in a greenhouse it needs warm conditions. It is easily propagated from cuttings. According to ITIS, Eranthemum pulchellum is the only species in the genus Eranthemum although The Plant List accepts 22 species.