About

Hemerocallis 'Comet Flash' is a daylily cultivar in the Asphodelaceae with flowers that typically last for a single day. It grows as a herbaceous, clump-forming perennial from rhizomes and bears strap-like basal leaves. Flowering in the UK runs from June to August, with a sequence of short-lived blooms over the season. The plant belongs to the genus Hemerocallis, long cultivated for its many registered cultivars.

About the genus

A daylily, day lily or ditch-lily is a flowering plant in the genus Hemerocallis, a member of the family Asphodelaceae, subfamily Hemerocallidoideae, native to Asia. Despite the common name, it is not taxonomically classified in the lily genus. Gardening enthusiasts and horticulturists have long bred Hemerocallis species for their attractive flowers; a select few species of the genus have edible petals, while some are extremely toxic.

Wikipedia contributors, "Daylily", CC BY-SA 4.0 — Daylily

In the garden

Hemerocallis 'Comet Flash' sits within the genus Hemerocallis (family Asphodelaceae), a group of herbaceous perennials originally associated with Asia and extensively bred by gardeners. As a daylily cultivar it produces flowers that open singly and normally last about one day; a supply of buds along the flowering stems extends the display across the season. The plant develops from rhizomes into a basal clump with long, strap-like leaves. Rhizomes and associated root structures store nutrients and water, which supports seasonal growth and repeat flowering. Some Hemerocallis forms spread by short stolons, so allow room for the clump to expand and inspect the root crown when renovating older clumps. In a UK garden 'Comet Flash' suits mixed herbaceous borders, massed drifts or planted alongside grasses where its upright flower stems rise above the foliage. Expect bloom between June and August and plan plantings so the succession of individual, day-lasting flowers provides an ongoing sequence of colour through that period.

More in the Hemerocallis genus

• 
  Hemerocallisdaylily
• 
  Hemerocallis 'Alan'daylily 'Alan'
• 
  Hemerocallis 'All the Magic'Daylily
• 
  Hemerocallis 'Angel Artistry'Daylily
• 
  Hemerocallis 'Bobby's Lavender Eyes'Daylily
• 
  Hemerocallis 'Bursting Bubble'Daylily
• 
  Hemerocallis 'Carolina Low Country'Daylily
• 
  Hemerocallis 'Cartwheels'daylily 'Cartwheels'