lack direction; Adjectives for Lack: sheer, oppressive, tediously demonstrable, obvious and surprising, refreshing, down-to-earth,
The best time of year to divide hostas is in late summer (August or early September). But, don't worry if you forget: You can divide hostas anytime from spring to fall.
I don't know that Hosta grow from bulbs. I have always bought them potted at the nursery. At any rate, late summer is considered a prime time for planting. I live on the border of Zone 6/7 ) mid Atlantic US ) and have had good luck planting them in late spring.