Grevillea juniperina

RHS Plant Profile

juniper-leaf grevillea

Synonyms

Grevillea alpina 'Juniperina'

Shrubs

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A dense, rounded, evergreen shrub to 2m tall, with prostrate to upright branches densely clothed with narrowly linear, pointed leaves to 2cm long. From late spring to midsummer it produces clusters of greenish-yellow to red flowers

Position

Full sun

Soil Types

Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 10–20 years
Max Spread: 1.5-2.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Loam Sand

Moisture: Well–drained
pH: Acid or 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): H4
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Proteaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Bushy
Potentially harmful: Skin irritant/allergen. Wear gloves and other protective equipment when handling Pets: Skin irritant/allergen. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Grevillea can be evergreen shrubs or trees, with alternate, simple or pinnately divided leaves and petal-less flowers consisting of a colourful calyx tube with protruding style, borne in racemes or panicles
Name Status: Correct
Plant Range: Australia (New South Wales)

How to Grow

Cultivation

Outdoors, grow in freely-draining, moderately fertile, acid to neutral soil in full sun. Under glass, grow in ericaceous potting compost with added extra grit, in full light. When in growth water freely and apply a low-phosphate liquid fertiliser monthly; water sparingly at other times. Top dress or pot on in spring

Propagation

Propagate by sowing scarified or pre-soaked seed in spring, or by semi-ripe cuttings in summer

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Mediterranean climate plants
Low Maintenance
Flower borders and beds

Pruning

See pruning group 1

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus (rarely)