Description
Ornamental ivy - Hedera helix ‘Conglomerata’
In a nutshell
Ornamental ivy, Hedera helix ‘Conglomerata’, is a highly original form of ivy.
The leaves are clasping at the base and intertwined on opposite sides of the stem. They are wavy, even slightly curly, and three-lobed with well-rounded dark green lobes.
The internodes are very short. The stem is thick, extending in a zigzag pattern. It is a compact, slow-growing ivy with a creeping habit that forms beautiful emerald-green carpets.
This ivy was elected «Ivy of the Year» 2015 by the American Ivy Society.
History
This cultivar was introduced around 1870 in the catalogue of the German nurseries Haage and Schmidt.
Detailed description of Hedera helix 'Conglomerata'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : helix
- Cultivar: ‘Conglomerata’
- Pierot classification: ivy curiosity
- Foliage stage: juvenile
- Origin of the species: Europe, from Spain to Norway, but little on the Atlantic coast.
- Origin of cultivar : introduced around 1870 in the catalogue of the German nurseries Haage and Schmidt.
Description of Hedera helix ‘Conglomerata’
- Port : semi-erect
- Number of lobes: 3 lobes in general
- Leaf length: 3 cm
- Sheet width: 4 cm
- Colour of leaf: dark green
- Colour of veins: light green
- Stem colour: purplish green
- Hairs: stellate, 3 to 5 branches
Planting, cultivation and maintenance advice for Hedera helix ‘Conglomerata’
- Exposure: shade, part shade, sun
- Hardiness: -20°C
- Soil moisture: cool soil
- Soil PH: neutral or chalky
- Soil type: all
- Soil richness: ordinary or humus-bearing
- Use: ground cover, climber, pot, window box, rockery, bonsai
- Development: moderate, slow
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
Comparison with similar cultivars
| Conglomerata | Erecta | Congesta | |
|---|---|---|---|
| Image | ![]() | ![]() | ![]() |
| Leaf | wavy, slightly curly | grooved | triangular |
| Lobes | rounded | slightly three-lobed, sharp | three-lobed, high-pitched |
| Growth habit | rampant | erected | erected |
Ivy in literature
“The ivy climbed silently, covering the remains of the past with a veil of eternal greenery.”









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