Worth waiting for

I enjoy my garden. But saying I'm much of a gardener would be an overstatement. I have a lot cacti because they are easy to take care of without a lot of work or water. They thrive more on neglect than pampering. This, however, is one of the blooms I do look forward to every year. I've been watching the buds on this one more carefully than I do many of the others( One picture )