One of the best things about shade and woodland gardens are hostas. These popular shade perennials are grown primarily for their foliage that ranges in colors from blue-green, chartreuse, white and variegated. The foliage can be heavily textured, too, for added appeal. Hostas are available in a wide range of sizes, from mini hostas that fit neatly into containers to giant hostas that can reach up to four feet tall. Most hostas grow in zones 3-9 and perform best in shaded to partially shaded areas. When selecting hostas to buy online, take into account their mature height and spread, as well as their foliage colors.