Overview

Heuchera 'Obsidian' is a perennial in the genus Heuchera, part of the Saxifragaceae family. Heuchera 'Obsidian' grows best in partial shade and shade, and tolerates well-drained soils and neutral and slightly acidic pH. Its UK hardiness is rated H5. Suggested uses include borders, containers and ground cover.

About

Heuchera 'Obsidian' (Obsidian Coral Bells) is a perennial cultivar of the Heuchera genus, known for its largely evergreen nature. It thrives in partial shade or shade and prefers well-drained, moist soil with a neutral to slightly acidic pH. Suitable for borders, containers, and ground cover, this cultivar benefits from sheltered spots to avoid waterlogging. It is hardy in the UK (H5) and requires pruning of old flower stems and dead leaves in spring to promote fresh growth. Propagation can be done by division or cuttings.

About the genus

Heuchera is a genus of largely evergreen perennial plants in the family Saxifragaceae. All species are native to North America except for Heuchera sichotensis, native to the Russian Far East. Common names include alumroot and coral bells.

Wikipedia contributors, "Heuchera", CC BY-SA 4.0Heuchera

Growing conditions

Best soil and position for Heuchera

Sunlight
partial shade, shade
Soil type
well-drained
Soil pH
neutral, slightly acidic
Soil moisture
moist
UK hardiness
H5

Plant details

Heuchera 'Obsidian' size, habit and characteristics

Plant type
perennial
Suggested uses
borders, containers, ground cover

Care notes

Pruning and caring for Heuchera 'Obsidian'

Cultivation
Prefers sheltered spots with partial shade and well-drained soil; avoid waterlogging.
Pruning
Remove old flower stems and dead leaves in spring to encourage fresh growth.
Propagation
division, cuttings

Frequently asked questions

How do I grow Heuchera 'Obsidian'?

Prefers sheltered spots with partial shade and well-drained soil; avoid waterlogging.

Where is the best place to plant Heuchera 'Obsidian'?

Heuchera 'Obsidian' prefers partial shade and shade.

What soil does Heuchera 'Obsidian' need?

Heuchera 'Obsidian' grows best in well-drained soil. It prefers neutral and slightly acidic soil. Aim for soil that stays moist.

How do I prune Heuchera 'Obsidian'?

Remove old flower stems and dead leaves in spring to encourage fresh growth.

Is Heuchera 'Obsidian' hardy in the UK?

Heuchera 'Obsidian' has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Heuchera 'Obsidian'?

Division, cuttings.

More in the Heuchera genus

Browse all Heuchera