All colors of calla lilies are for sale now in big box garden centers. But these are not the ones I can grow well in my garden. The ones that I have had success with are the big bloom types both in white (which is the most common) and yellow. Usually mine will last in the garden for several years, then for some reason, they do not come up in the spring. My luck in growing them, I think, is their location. Plant the rhizome (they are not true lilies) about 3-4 inches deep in well drained fertile soil that gets a few hours of morning sun. It is funny when you go to buy the rhizomes, you can either order them from a mail order specality nursery, or in the summer bulb displays in big box stores. Usually they will have one rhizome per package and are much cheaper than the ones you order. When purchasing, make sure the rhizome is firm and one end has a pointed tip that looks like where the new leaves will sprout. They are beautiful flowers. The white flowers have beautiful large green leaves, and the yellow ones typically have green leaves with white spots. Plant now and you will get blooms this year.