Description
Ornamental ivy - Hedera hibernica ‘Deltoidea Arborescens’ (Deltoidea Arborescens)’
In a nutshell
Irish ivy, Hedera hibernica ‘Deltoidea Arborescens’, is ivy in its adult stage.
The leaves, which are not lobed, are heart-shaped and dark green. Young leaves take on a light green colour. The stems are thick and fairly branched. The growth habit is shrubby, with medium internodes. Flowering, in the form of greenish umbels, takes place in September-October. This is followed by small berry-shaped fruits, which are black when ripe.
This ivy is interesting both for its aesthetic appeal, with its heart-shaped leaves, and for its ecological value, with its flowers and fruit, which are appreciated by foragers and birds.
History
This cultivar, of unknown origin, was first described by Hibberd in 1872.
Detailed description of Hedera hibernica 'Deltoidea Arborescens'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : hibernica
- Cultivar: ‘Deltoidea Arborescens’.’
- Pierot classification: heart-shaped ivy
- Foliage stage: adult
- Origin of the species: Europe, on the Atlantic coast, from Portugal to Scotland.
- Origin of cultivar: unknown
Description of Hedera hibernica ‘Deltoidea Arborescens’ (Hedera hibernica 'Deltoidea Arborescens')’
- Growth habit: shrubby
- Number of lobes: unlobed
- Leaf length: 4 to 5 cm
- Leaf width: 4 to 5 cm
- Colour of leaf: dark green
- Variant leaf colour: young, light green leaves
- Colour of veins: light green
- Colour of stem and petiole: pink
- Length of petiole: 3 to 4 cm
- Branches: fairly widespread
- Mattress thickness: not very thick
- Knot spacing: 5 cm
- Hairs: stellate, 3 to 5 branches
Advice on planting, cultivation and care of Hedera hibernica ‘Deltoidea Arborescens’.’
- Exposure: shade, part shade, sun
- Hardiness: -15°C
- Soil moisture: cool soil
- Soil PH: neutral, calcareous or acidic
- Soil type: all
- Soil richness: ordinary or humus-bearing
- Use: pot, freestanding, rockery
- Development: moderate
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
Ivy in literature
“The cathedral walls, overgrown with ivy, seemed to melt into the wild landscape.”





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