Leptospermum grandiflorum

RHS Plant Profile

large-flowered tea tree

RHS

Synonyms

Leptospermum rodwayanum

Shrubs

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A spreading, evergreen shrub to 3m tall, its young shoots covered with a fine grey down and grey-green leaves up to 2.5cm long which are aromatic when crushed. Solitary, saucer-shaped, pure white flowers up to 3cm in diameter are borne in summer

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1.5-2.5 metres
Max Height: 2.5-4 metres

Growing Conditions

Clay Loam Sand

Moisture: Well–drained
pH: Acid 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 Foliage

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Myrtaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Genus: Leptospermum are aromatic evergreen shrubs or small trees with small, often silky leaves and 5-petalled flowers in late spring and summer
Name Status: Correct
Plant Range: Australia (Tasmania)

How to Grow

Cultivation

Grow in moderately fertile, well-drained soil in full sun or part shade. Shelter from cold, drying winds

Propagation

Propagate by seed or from semi-ripe cuttings

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Gravel garden
Low Maintenance
Wall side borders
Flower borders and beds

Pruning

Pruning group 8

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus (rarely)