Bred in the 1970s by a nurseryman named Walter Jablonski, Stella D'Oro was the first commercially available reblooming daylily. Instead of producing flowers over a period of three weeks, Stella D'Oro produces its golden flowers throughout the summer and into fall. The low-maintenance, drought-resistant perennial became a garden favorite due to the bright, long-lasting blooms and attractive mound of strap-shaped leaves. With the right care, Stella D'Oro is a solid performer in your garden.
Plant Stella D'Oro daylilies in a well-drained location that gets at least six hours of sun. Set the fleshy tubers just below the ground, cover with soil and add 3 inches of mulch. Daylilies are not fussy about soil, but produce more blooms in rich soil.
Water a new planting regularly. Established daylilies survive moderate drought but grow and bloom best with 1 inch of water weekly. Don't allow the planting site to become boggy.
Fertilize Stella D'Oro daylilies once a month throughout the growing season with a water-soluble fertilizer. Remove the spent individual flowers after they fade. Discard or compost the cuttings.
Dig and divide Stella D'Oro clumps after five years, or sooner if crowding has reduced flower production. Separate the original plant into clumps of three to five leaf fans. Replant them immediately. Do not divide daylilies within six weeks of the first average frost date.