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Saxifraga cortusifolia Black Ruby

Saxifraga cortusifolia Black Ruby
Saxifrage

3,9/5
19 reviews
2 reviews
3 reviews
4 reviews
4 reviews

Very pretty little plant with lovely and graphic flowers, I highly recommend it.

Eric, 29/11/2024

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This plant carries a 12 months recovery warranty

More information

Small perennial woodland plant with chocolate-brown foliage. In late summer to autumn, it bears unique pinkish-purple flowers.
Flower size
1 cm
Height at maturity
15 cm
Spread at maturity
20 cm
Exposure
Partial shade
Hardiness
Hardy down to -15°C
Soil moisture
Moist soil
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Recommended planting time February to May, September to October
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Flowering time September to November
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Description

Saxifrage cortusifolia 'Black Ruby' is a perennial of the undergrowth with chocolate-brown foliage. It blooms from September to November, with peculiar purple-pink flowers.

 

This small plant produces a rosette of deciduous leaves, 20cm (8in) in diameter. They are lobed, toothed, rounded, shiny, 5 to 8cm (2 to 3in) long, and chocolate-brown in colour. At the end of summer, pyramidal panicles, 10cm (4in) long, offer pretty cup-shaped flowers with 4 upper petals and 2 longer lower petals. They are purple-pink, and measure 3 to 5cm (1 to 2in) in diameter. Lean in a little closer to enjoy their delicate scent.

'Black Ruby' thrives in light, humus-rich, moist and well-drained soil in semi-shade or full shade. Plant it in a shady rock garden, borders, or walls. It can also be planted in containers with campanulas or Veronica umbrosa. 

 

 

NOTE: Attention! This is a delicate plant to be reserved for experienced gardeners. Plant 'Black Ruby' in any light and moist soil. This perennial does not tolerate heavy and wet soils in winter.

Saxifraga cortusifolia Black Ruby in pictures

Saxifraga cortusifolia Black Ruby (Flowering) Flowering
Saxifraga cortusifolia Black Ruby (Foliage) Foliage

Flowering

Flower colour pink
Flowering time September to November
Flower size 1 cm

Foliage

Foliage persistence Deciduous
Foliage colour black

Plant habit

Height at maturity 15 cm
Spread at maturity 20 cm
Growth rate slow

Botanical data

Genus

Saxifraga

Species

cortusifolia

Cultivar

Black Ruby

Family

Saxifragaceae

Other common names

Saxifrage

Origin

Cultivar or hybrid

Product reference97261

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Planting and care

Saxifraga cortusifolia 'Black Ruby' should be planted from September to March, 9 plants per m², in a well-draining mixture of ericaceous soil, pumice, and garden soil. If planted at the base of deciduous trees or bushes, remove any fallen autumn leaves covering the clump. It is susceptible to attacks from aphids, gastropods, and vine weevils.

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Planting period

Recommended planting time February to May, September to October

Intended location

Suitable for Shaded rockery, Woodland edge
Type of use Edge of border
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Experienced
Planting density 9 per m2
Exposure Partial shade
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, humus-bearing and well-drained

Care

Pruning No pruning necessary
Overwinter Can be left in the ground
3,9/5

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