Agathis australis

RHS Plant Profile

kauri pine

RHS

Other common names

kauri

Conservatory Greenhouse Trees

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An evergreen conifer with broad, flat, leathery leaves which ultimately makes a very large, imposing tree. Both male and female cones appear on the tree, the male ones are long and cylinder-shaped whilst the female are spherical and woody

Position

Full sun

Soil Types

Loam

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity: more than 50 years
Max Spread: wider than 8 metres
Max Height: Higher than 12 metres

Growing Conditions

Loam

Moisture: Moist but well–drained
pH: Neutral

Position

Full sun

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

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Araucariaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Columnar upright
Genus: Agathis are evergreen, coniferous trees with broad, flat, leathery leaves. The spherical female cones and smaller, cylindrical male cones are borne on separate trees
Name Status: Correct
Plant Range: New Zealand

How to Grow

Cultivation

Young plants may be grown for their foliage in a cool greenhouse, and stood outdoors in summer. Grow in peat-free, loam-based compost, with good light and plenty of ventilation

Propagation

Propagate by seed sown in warmth in early spring

Suggested planting locations and garden types

City and courtyard gardens
Patio and container plants

Pruning

Pruning group 1

Pests

Generally pest-free

Diseases

Generally disease-free