long yellow daylily

Grow in fertile, well aerated soil in full sun. Water freely from spring to summer. Divide every 2-3 years to maintain vigour. See Hemerocallis cultivation for more advice

Cut back flower stems after flowering has finished. Remove dead foliage as required.

Propagate by division in early spring or autumn, at least six weeks before the first frost. Propagate from seed sown in containers in a cold frame in autumn or spring.

May be susceptible to hemerocallis gall midge, aphids, glasshouse red spider mite and thrips. Slugs and snails may damage young leaves.

May be susceptible to rust. In climates with alternating winter frosts and thaws, bacterial leaf and stem rot (spring sickness) may be a problem; in areas with high temperatures and high humidity, crown rot may cause damage.