I've been told mushrooms are my favorite subject, because they don't move. Flowers are a close runner up, although the wind can be a bit pesky at times. In a conservatory, not usually a problem. A cactus flower with no stem, no sweat. This is an early digital photo for me, taken in 2004 with my first decent digital camera. I resisted digital, but once I tried it, I haven't looked back.
This is a cactus flower photographed at the Seattle Conservatory. Great place to see flowers, although they no longer allow tripods.