Description
Ornemental ivy – Hedera helix ‘Alt Heidelberg’
In a nutshell
The ornamental ivy, Hedera helix ‘Alt Heidelberg’ , forms beautiful fasciations which give it a very particular compact character.
It differs significantly from other ivies in its tiny leaves that resemble oak leaves. The foliage of this variety is dark green, asymmetrical, rhomboid to spatulate. The tips are blunt and rounded, the edges often rolled underneath.
It is a low growing plant, which can be kept as a potted or hanging plant or planted in small areas in partial shade. This ivy is well suited to being pruned into a bonsai. Be careful, it sometimes produces long shoots which must be removed.
History
This cultivar was discovered by Brother Ingobert Heieck in 1972 at the monastery in Neuburg, Germany. It is the result of a mutation of ‘Merion Beauty’.
Technical leaflet - Hedera helix 'Alt Heidelberg'
Botanical information
- Family: Araliaceae
- Genus: Hedera
- Species: helix
- Cultivar: ‘Alt Heidelberg’
- Pierot classification: miniature ivy, curiosity ivy
- Leaf stage: juvenile
- Origin of the species: Europe, from Spain to Norway, but little on the Atlantic coast.
- Origin of the cultivar: sport of ‘Merion Beauty’ selected by Brother Ingobert Heieck in 1972 at the monastery of Neuburg, Germany.
Description of Hedera helix 'Alt Heidelberg'
- Shape: stocky
- Number of lobes: generally not lobed
- Leaf length: 3 cm
- Leaf width: 1.5 cm
- Leaf colour: dark green
- Vein colour: light green
- Stem and petiole colour: reddish brown
- Ramifications: very branched
- Hairs: stellar, 3 to 5 branches
Tips for planting, growing and maintaining Hedera helix 'Alt Heidelberg'
- Exposure: partial shade
- Hardiness: -19°C
- Soil moisture: fresh soil
- Soil pH: neutral or calcareous
- Soil type: all
- Soil richness: ordinary or humus-rich
- Use: ground cover, pots, planters, hanging baskets, bonsai, houseplant
- Development: moderate, slow
- Pruning: once a year
- Pests: very rare (red spiders, scale insects)
- Diseases : very rare (spots on the leaves)

Ivy in literature
“The ivy entwined the stones like nature’s embrace of what was once alive. ”
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