That happens with my calla every year, Don't worry they wont grow too much, so you can just leave them right where they are until you plant them, they should grow and bloom fine, as long as there is nothing wrong with the bulb, like to diseases. hope this info helps.

Oh good- Not all of them have sprouted, but some actually have 1 1/2 inches of growth, so I was quite concerned! Thanks so much. :)

No problem!