The optimum season for fresh asparagus lasts from February through June, although hothouse asparagus is available year-round in some regions. The earliest, most tender stalks are a beautiful apple green with purple-tinged tips.
White spears are usually thick and are smoother than the green variety.
There's also a purple variety called Viola . Or, store standing upright in about an inch of water, covering the container with a plastic bag. Asparagus is grown in sandy soil so thorough washing is necessary to ensure the tips are not gritty. If asparagus stems are tough, remove the outer layer with a vegetable peeler. Canned and frozen asparagus is also available.