This unnamed succulent has virtually taken over a corner of my back "garden" (I use the term loosely). It grows another plant where any leaf falls but I like it so haven't tried to get rid of them. The flowers are like little bells and are tightly closed... until I press them. They make a satisfying popping sound, giving much the same pleasure one gets from squeezing bubble wrap. If I was more musically inclined I reckon I could even make a tune popping them as each one sounds slightly different, depending on the size. The flower stalks are quite tall and this particular plant is about 1.5m tall.