Pittosporum crassifolium

RHS Plant Profile

karo

John Fielding

Other common names

caro, evergreen pittosporum, parchment bark

Shrubs Trees

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An evergreen, dense, bushy shrub or small tree with oblong, dark green leaves felted white-grey beneath. Clusters of small, fragrant, deep red to purple flowers are borne in spring

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

8-12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity: 10–20 years
Max Spread: wider than 8 metres
Max Height: 8-12 metres

Growing Conditions

Chalk Loam Sand

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

Position

Full sun Partial shade

Aspect: South–facing or West–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): H3

Colour & Scent

Fragrance Flower

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Pittosporaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Pittosporum are evergreen shrubs or trees with simple, leathery leaves and small, often fragrant, 5-petalled flowers, followed by spherical, woody fruits splitting to reveal seeds embedded in sticky pulp
Name Status: Correct

How to Grow

Cultivation

Grow outdoors in moist but well-drained soil in full sun. In areas prone to frosts grow under glass in a peat-free, loam-based potting compost. A good screen or shelterbelt for mild, coastal areas

Propagation

Propagate by budding in summer

Suggested planting locations and garden types

Coastal
Low Maintenance
Hedging and screens
Wall side borders

Pruning

Pruning group 1

Pests

May be susceptible to glasshouse red spider mite, aphids, cushion scale and pittosporum sucker

Diseases

May be susceptible to powdery mildews and a leaf spot