Overview
x Heucherella 'Heart of Darkness' is a climbing herbaceous perennial in the genus Heucherella, part of the Saxifragaceae family, with deciduous foliage. x Heucherella 'Heart of Darkness' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden, wildlife gardens and wall side borders.
About
x Heucherella 'Heart of Darkness' is a deciduous, climbing herbaceous perennial belonging to the Saxifragaceae family. As a cultivar of the hybrid genus Heucherella, it shares the characteristic ovate or rounded foliage and produces airy panicles of small, bell-shaped flowers in shades of pink or white during spring and summer. It thrives in full sun on a south-facing, sheltered aspect with fertile, moist but well-drained loam soil of neutral pH. Hardy to UK zone H6, it is well suited to cottage and informal gardens, wildlife gardens, and wall side borders.
About the genus
× Heucherella is an evergreen perennial flowering plant in the family Saxifragaceae. A hybrid of garden origin, it is the result of a cross between two distinct genera, Heuchera and Tiarella, and shows similarities to both parents. This type of intergeneric hybrid is quite rare, and is indicated by a multiplication symbol before the name.
Wikipedia contributors, "× Heucherella", CC BY-SA 4.0 — × Heucherella
Growing conditions
Best soil and position for Heucherella
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H6
Plant details
x Heucherella 'Heart of Darkness' size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Climbing
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Wildlife gardens, Wall side borders
Care notes
Pruning and caring for x Heucherella 'Heart of Darkness'
- Propagation
- Softwood cuttings in early to mid spring, Hardwood cuttings in late summer to autumn, Chip budding in summer, Seed propagation (requires stratification)
- Pest resistance
- Aphids, Rose leafhopper, Glasshouse red spider mite, Scale insects, Caterpillars, Large rose sawfly, Rose slugworm sawfly, Rose leaf-rolling sawfly, Deer, Rabbits
- Disease resistance
- Rose black spot, Rose rust, Replant disease, Rose dieback, Rose powdery mildew, Honey fungus, Rose blindness, Flower balling
Frequently asked questions
Where is the best place to plant x Heucherella 'Heart of Darkness'?
x Heucherella 'Heart of Darkness' prefers full sun. It suits sheltered positions.
What soil does x Heucherella 'Heart of Darkness' need?
x Heucherella 'Heart of Darkness' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.
Is x Heucherella 'Heart of Darkness' hardy in the UK?
x Heucherella 'Heart of Darkness' 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 x Heucherella 'Heart of Darkness'?
Softwood cuttings in early to mid spring, Hardwood cuttings in late summer to autumn, Chip budding in summer, Seed propagation (requires stratification).
More in the Heucherella genus
- _ Heucherella 'Bridget Bloom'
- _ Heucherella alba
- x Heucherella 'Mojito'
- x Heucherella alba 'Rosalie'
- _ Heucherella tiarelloidesfoamy bells