Acaena saccaticupula 'Blue Haze'

RHS Plant Profile

blue goose leaf 'Blue Haze'

Synonyms

Acaena 'Pewter'
Acaena adscendens misapplied

Alpine Rockery Herbaceous Perennial

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A creeping, evergreen perennial to 10cm tall and up to 1m across. The leaves are divided into 9-15 oval, toothed, blue-grey leaflets tinged bronze at their margins. In midsummer, rounded white flowerheads are borne on short stems and followed by dark red burrs with pinkish-red spines

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

Up to 10 cm

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: Up to 10 cm

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: East–facing or South–facing or North–facing or West–facing
Exposure: Exposed
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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Rosaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Matforming
Potentially harmful: Pets (dogs) - Burrs can irritate skin
Genus: Acaena can be evergreen perennials or subshrubs with pinnate leaves with dentate leaflets. Tiny flowers are carried in a dense rounded head or spike, followed by attractive burr-like fruiting heads
Name Status: Accepted

How to Grow

Cultivation

This plant is listed on Schedule 9 of the UK Wildlife & Countryside Act (Northern Ireland) as an invasive non-native species. Although not banned from sale, it is an offence to plant or cause these to grow in the wild IN NORTHERN IRELAND Gardeners possessing them should undertake measures to control them. See RHS advice on invasive non-native species for further information

Propagation

Please see cultivation notes

Pests

Generally pest-free

Diseases

Generally disease-free