What is siempre viva planta in santeria?

Siempre Viva has different applications. But mainly it helps to keep your mind Always Alive ( Siempre Viva in spanish).

If you have access to this plant, you could cut the leafes and make a bath.

A simple purification or relaxing bath consists of taking the Siempre Viva leafes into aplastic bottle, put some white rum in it mixed with honey and some water.