Standard Dwarf Bearded irises I call dwarfs. They are classed as medians and the MTB's (miniature dwarf bearded) are classed as dwarfs. I have about 30 MTB's but they require potting and extra care due to my climate. It is too hot here for most of them to thrive and not cold enough during the winter. However, the SDB's, nine to sixteen inches tall, require the same growing conditions as any other bearded iris and seem to be able to tolerate more shade and more water than the big boys do. I really, really like the 'little guys'.
