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Shrubs

Daphne petraea 'Tremalzo'

daphne 'Tremalzo'

A very slow-growing dwarf evergreen shrub to 10cm tall, with narrow, dark green leaves and pure white flowers with a tiny yellow eye, opening in late spring

Synonyms

Daphne petraea 'Alba'

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Ultimate height

Up to 10cm

Time to ultimate height

10–20 years

Ultimate spread

0.1–0.5 metres

Chalk

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

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: Thymelaeaceae
Native to GB / Ireland: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: TOXIC if eaten, skin irritant. Wear gloves and other protective equipment when handling TOXIC to pets - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Daphne can be deciduous or evergreen shrubs with small, usually very fragrant tubular, 4-lobed flowers, often followed by colourful berries
Name status: Accepted

How to grow

Cultivation

A choice shrublet, ideal for an alpine house or scree. Grow in moderately fertile, well-drained soil in sun or partial shade. Mulch to keep roots cool. Resents transplanting. Further daphne cultivation advice

Propagation

Take softwood cuttings in early summer and semi-ripe cuttings in late summer

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Gravel garden
Rock garden
Flower borders and beds

Pruning

Pruning group 1 or pruning group 8 but keep pruning to a minimum

Pests

May be susceptible to aphids

Diseases

May be susceptible to honey fungus (rarely), phytophthora root rot, fungal leaf spot and virus diseases

Get involved

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