Here is an Amarillys (spelling is way wrong) that I planted a few years ago and never bloomed till now. I had forgotten about the bulb and planted some princess flowers which are now 6 feet high. Just noticed last week this popped up under it.
The second one is a bromeliad a neighbor gave me. I think the plant is driving her crazy. She has a lot of plants and when she gave me this mentioned that it only blooms once a year. She babies all her plants and she can't believe I just leave them to fend for themselves except for water if it's really dry. She keeps checking on this plant telling me it's too dry, needs bigger pot, etc. I think it makes her crazy that in 6 months I had this is the 3rd time it's bloomed.