Description
Ornamental ivy - Hedera helix ‘Nigra Aurea’
In a nutshell
Ornamental ivy, Hedera helix ‘Nigra Aurea’, is a good climber. It will brighten up any corner of your garden.
The dark green foliage gives rise to young yellow shoots which gradually turn green.
The three-lobed leaf is medium-sized (4 x 4 cm). In winter, it darkens considerably, turning green-black.
Rather branchy, it forms thin mattresses.
History
This cultivar is of unknown origin.
Technical details - Hedera helix 'Nigra Aurea'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : helix
- Cultivar: ‘Nigra Aurea’
- Pierot classification: ivy type
- Foliage stage: juvenile
- Origin of the species: Europe, from Spain to Norway, but little on the Atlantic coast.
- Origin of cultivar: unknown
Description of Hedera helix ‘Nigra Aurea’
- Growth habit: sparsely branched
- Number of lobes: 3 lobes in general
- Leaf length: 4 cm
- Sheet width: 4 cm
- Colour of leaf: dark green
- Colour variation: young leaves are yellow
- Mattress: not very thick
- Colour of veins: green
- Colour of stem and petiole: purple green
- Hairs: stellate, 3 to 5 branches
Planting, cultivation and maintenance advice for Hedera helix ‘Nigra Aurea’
- Exposure: sun, shade, part shade
- Hardiness: -19°C
- Soil moisture: cool soil
- Soil PH: neutral or chalky
- Soil type: all
- Soil richness: ordinary or humus-bearing
- Use: climbing, pots or window boxes
- Development: rapid
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
A page from my little ivy encyclopaedia
A new look at ivy ...
Is ivy an excellent insulator?
Measurements were taken over several years, and in different seasons, on various public buildings covered in ivy. The results are clear: temperature differences inside buildings are reduced by 3 to 4 degrees. Ivy protects against both cold and heat.
With global warming and energy shortages, urban architects have understood the benefits of plant cover on building walls.
Ivy is one of the easiest plants to use for this purpose: «it's the perfect plant for insulating façades and keeping them dry», says CGConcept.
Some towns are beginning to consider planting ivy at the foot of public buildings to reduce energy bills.
Ivy in literature
“The ivy, a symbol of constancy, contrasted with the corruption of Dorian's soul.”







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