Leucanthemum × superbum 'Phyllis Smith'

RHS Plant Profile

Shasta daisy 'Phyllis Smith'

RHS

Synonyms

Chrysanthemum maximum 'Phyllis Smith'

Herbaceous Perennial

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A clump-forming perennial that grows to 90cm tall, with dark green foliage and shaggy, double white flower heads in summer and early autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.1-0.5 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–facing
Exposure: 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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Asteraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Leucanthemum are robust herbaceous perennials with narrowly oblong leaves and daisy-like flower-heads with white rays
Name Status: Accepted

How to Grow

Cultivation

Grow in moderately fertile, moist but well-drained soil in full sun or partial shade; plants may need support

Propagation

Propagate by division in early spring or late summer

Suggested planting locations and garden types

Coastal
City and courtyard gardens
Cottage and informal garden
Flower borders and beds

Pruning

Deadhead regularly then cut stems down to the ground in winter

Pests

May be susceptible to aphids and leaf and bud eelworms

Diseases

Generally disease-free