Description
Irish ivy - Hedera hibernica ‘Arco’
In a nutshell
Irish ivy, Hedera hibernica ‘Arco’, It has light green foliage, less thick than the type, which takes on beautiful bronze tones in winter.
The leaves are broad with slightly wavy or curly margins and whitish veins. The stems are fairly branched, with internodes of around 3 cm.
It is a semi-adult form that can crawl or climb.
History
This cultivar was discovered by Mario Hollmann of the German Ivy Society in 1999.
Technical details - Hedera hibernica 'Arco'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : hibernica
- Cultivar: ‘Arco’
- Pierot classification: ivy type
- Foliage stage: semi-adult
- Origin of the species: Europe, on the Atlantic coast, from Portugal to Scotland
- Origin of cultivar: discovered in 1999 by Mario Hollmann of the German Ivy Society
Description of Hedera hibernica ‘Arco’
- Growth habit: spreading
- Number of lobes: 3 to 5 lobes in general
- Leaf length: 7 cm
- Sheet width: 8 cm
- Leaf colour: light to dark green
- Colour variation: bronze in winter
- Colour of veins: light green
- Stem: fairly branched
- Mattress thickness: fairly dense
- Knot spacing: 3 cm
- Colour of stem and petiole: purple green
- Length of petiole: 7 cm
- Hair: stellate, small
Advice on planting, cultivation and care of Hedera hibernica ‘Arco’
- 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: ground cover, climber
- Development: moderate
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
A page from my little ivy encyclopaedia
The occasional question ...
What is an internode?
Ivy leaves are arranged alternately on the stem, once on one side and once on the other, and so on. The place where the leaf attaches to the stem is called the node. The space between two consecutive nodes is called the’knot.
The distance between the nodes varies greatly depending on the species and cultivar. The distance between nodes is therefore often a distinctive characteristic of varieties.
Ivy with short internodes is compact and well covered with leaves. They often form thick mats. In contrast, ivy with long internodes has sparser leaves on much longer stems. This type of ivy forms a less dense cover, which can be an advantage or a disadvantage depending on the purpose and the use to which it is to be put.
Ivy in literature
“The path wound through a tunnel of thick ivy and brambles.”










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