Sprekelia formosissima is a gorgeous bulb plant originary from Mexico.
Many years ago I was presented 3 bulbs that bloomed non-stop in polluted Santiago city. They also produced side bulbs, which when grown I passed to friends.
When I moved to the countryside (now 5 1/2 years ago) I gave my favourite bulb (produced two opposite flowers on one stem!) to my neighbour and friend. This bulb has not only reproduced like mad, but has two or 3 blooming stems (always double) per season.
Although my bulbs have reproduced 3 or 4 times the originary amount, they bloom scarcely. Let's see what happens this year, since I separated the bulbs.
Quite a temperamental beauty!