Overview
Heuchera Carnival Black Olive (Carnival Series) is a clump-forming herbaceous perennial in the genus Heuchera, part of the Saxifragaceae family, with evergreen, rounded, shallowly lobed foliage. Heuchera Carnival Black Olive (Carnival Series) grows best in partial shade, and tolerates loam and sand soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include borders, containers, ground cover and underplanting of roses and shrubs.
About
Heuchera Carnival Black Olive (Carnival Series) is a herbaceous perennial cultivar of the alum root genus Heuchera, known for its mostly evergreen, clump-forming growth habit. It features rounded, shallowly lobed leaves arranged in a palmate pattern and produces racemes or panicles of small tubular flowers with vibrant calyces. This cultivar thrives in partial shade and prefers fertile, moist but well-drained loam or sandy soil with a neutral pH. Suitable for borders, containers, ground cover, and underplanting of roses and shrubs, it is hardy to UK zone H6 and flowers in spring and summer.
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 4.0 — Heuchera
Growing conditions
Best soil and position for Heuchera
- Sunlight
- Partial shade
- Soil type
- Loam, Sand
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, South-facing, North-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H6
Plant details
Heuchera Carnival Black Olive (Carnival Series) size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump-forming
- Foliage
- Evergreen, Rounded, Shallowly lobed
- Suggested uses
- Borders, Containers, Ground cover, Underplanting of roses and shrubs
Care notes
Pruning and caring for Heuchera Carnival Black Olive (Carnival Series)
- Propagation
- Division in autumn
- Pest resistance
- Vine weevil, Leaf and bud eelworm
- Disease resistance
- Heuchera rust
Frequently asked questions
Where is the best place to plant Heuchera Carnival Black Olive (Carnival Series)?
Heuchera Carnival Black Olive (Carnival Series) prefers partial shade. It suits sheltered positions.
What soil does Heuchera Carnival Black Olive (Carnival Series) need?
Heuchera Carnival Black Olive (Carnival Series) grows best in loam and sand soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is Heuchera Carnival Black Olive (Carnival Series) hardy in the UK?
Heuchera Carnival Black Olive (Carnival Series) has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Heuchera Carnival Black Olive (Carnival Series)?
Division in autumn.
More in the Heuchera genus
- Heuchera 'Cappuccino'
- Heuchera amer. 'Dale's Strain'Coral Bells
- Heuchera × brizoidesCoral Bells
- Heuchera × brizoides 'Blooms' Variety'Coral Bells
- Heuchera × brizoides 'Coral Cloud'Coral Bells
- Heuchera × brizoides 'Oakington Jewel'Coral Bells
- Heuchera × brizoides 'Pearl Drops'Coral Bells
- Heuchera × brizoides 'Sparkler'Coral Bells