Hardy water lilies will grace your pond from year to year as they are frost tolerant. Hardy water lilies will grace your pond from year to year as they are frost tolerant. They bloom Continuously throughout the growing season, with each bloom lasting 3-5 days. Given calm water, at least 5-6 hours of direct sunlight and adequate fertilizer, your hardy lilies will reward you with a spectacular show. We use and recommend Pondtabbs Aquatic Fertilizer every 2-4 weeks during the growing season. Hardy lilies are available in white, yellow, pink, red, and peach. All Items Here are all the products in this category: • Albida • Attraction • Colorado • Fabiola • Sulphurea