Water for Daylilies


Yes. Yes. And, Yes. Critical during flowering period. (Peak bloom of most cultivars occurs from late-June to mid-July in the St. Louis area.) If nature fails to provide at least 1" per week during blooming season, supplemental watering is a must. Afternoon watering may theoretically raise the risk of fungus, but early morning watering will ruin many of the day's blooms. (Never water in the evening, because of overnight fungus risk. It's no accident that golf courses water in the early morning. It's not simply to avoid getting the golfers wet.)

Can you give daylilies too much water? Yes. "Plenty of water" doesn't mean a bog environment. Daylilies need water, but also satisfactory drainage. Do not plant so that daylily constantly sits in water. They are not pond plants.

Heavy watering in the early spring will help to build sturdy plants and strong scapes. Constant watering during bloom season will increase bloom size, but it may cause blooms to melt or burn earlier in the day or even cause 'scape blast' a condition where the scape looks as if it explodes and breaks in two. To impress scheduled visitors, watering heavily a couple of days beforehand can improve bloom count.

Instead of hoses or sprinkler systems, some use soakers and drip irrigation. Both deliver water more efficiently to the plants in need. Soakers are simply hoses specially designed to ooze water throughout the length of hose. Drip irrigation involves the use of miniature hoses, with a separate nozzle for each plant. Besides using less water, they also have the advantage, for daylilies, of applying water directly to the roots, thereby avoiding water damage to the day's blooms.


picture of rain


picture of water


picture of hose