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Herbaceous Perennial

Heuchera Silverberry ('Ifhesilb') (Indian Summer Series)

alum root [Silverberry]

A clump-forming, semi-evergreen perennial, to around 30cm high, forming a mound of lobed and toothed, dark purple leaves washed with silvery grey. Tall sprays of white flowers are borne on slender stems above the leaves in late spring and early summer

Synonyms

Heuchera 'Ifhesilb'
Heuchera 'Silverberry'

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–facing or West–facing

Exposure

Sheltered

Drought resistance

Yes

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)

Botanical details

Family: Saxifragaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Clump forming
Genus: Heuchera are more or less evergreen, clump-forming perennials with attractive, rounded, shallowly palmately lobed leaves and racemes or panicles of small, tubular flowers, often with colourful calyces
Name status: Trade

How to grow

Cultivation

Grow in a fertile, neutral soil in light or partial shade, and ensure good drainage, especially in heavy soils. The woody rootstock tends to lift out of the ground over time, so mulch annually to retain moisture, and divide and replant every 3-4 years with only the crown above ground

Propagation

Propagate by division in autumn

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Flower borders and beds
Garden edging
Ground cover
Underplanting of roses and shrubs

Pruning

No pruning required. Remove dead leaves and faded flower spikes

Pests

May be susceptible to leaf and bud eelworm and vine weevil

Diseases

May be susceptible to heuchera rust and leafy gall

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