The classic look for daylilies is planted en masse, either along a pathway or drifting through a border. Mass plantings are good for erosion-prone sites, such as hillsides or gullies, and stand up to the harshest conditions. Daylilies also look great scattered throughout a perennial border. Try grouping plants in clumps of three or five for a natural feel that fits in with the other perennials. The only rule to follow is keeping taller plants in the back and allowing enough room for each clump to thrive (place about 3 feet apart).