I have several (and given away plenty of that one. We call it moses in the Bullrushes. Because of the way it
flowers. There are purple half moon shaped pods "baskets" out if those pop little white
flowers. The baskets are usually close to the stem if your not looking at the plant it is easy to miss seeing them. If you have multiple stems you should be able to split it, or wait till after it
flowers and collect the
seeds. Its very easy to care for, that why I like them so much.
They are fairly hardy and will grow in most conditions, If it get tall and spindly you can cut it back and see if that helps to thicken it out a bit, though you may not want to cut it back all at once. Choose a few at a time.
When we we're down to Cuba last month the balconies ot the resort had a window box surrounding it just filled with these.