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Herbaceous Perennial

Hemerocallis 'Double Dawn Surprise' (d)

daylily 'Double Dawn Surprise'

An upright, clump-forming perennial, to around 60cm high, with semi-evergreen, strap-shaped leaves. Branching stems bear flowers up to 13cm across in summer, with cream petals brushed with rose pink, a rose halo and a yellow-green throat

Synonyms

Hemerocallis 'Dawn Surprise'

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or West–facing or East–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Asphodelaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Clump forming
Potentially harmful: TOXIC to pets (cats) - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Hemerocallis may be evergreen or herbaceous perennials, with narrow, strap-shaped leaves and funnel-shaped flowers on erect stems in late spring or early summer
Name status: Accepted

How to grow

Cultivation

Grow in fertile, well drained soil, in areas that will not dry out in summer. Prefers full sun, flowering is likely to be reduced in shadier situations. Water freely from spring to summer. Divide every 2-3 years to maintain vigour. See hemerocallis cultivation for more advice

Propagation

Propagate by division in early spring, or in autumn at least six weeks before the first frost

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Flower borders and beds

Pruning

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

Pests

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

Diseases

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

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