Hedera helix ‘Shamrock’ - Ornamental ivy
Small leaves measuring 2 x 3 cm with three rounded lobes, the two lateral ones overlapping above the central lobe.
Dark green blade, becoming lighter in the sun.
Sturdy, branching ivy makes attractive ground cover for small areas of the garden. Carpet of leaves very low to the ground.
This ivy won the RHS (Royal Horticultural Society) Garden Merit Award in 2012.
Voted «Ivy of the Year» by the American Ivy Society in 2007.
From 12.90 €
Description
Ornamental ivy - Hedera helix ‘Shamrock’
In a nutshell
Ornamental ivy, Hedera helix ‘Shamrock’, It has small leaves measuring 2 x 3 cm with three rounded lobes, the two lateral ones superimposed above the central lobe.
The leaf blade is dark green. It becomes lighter in the sun.
This is a robust, branching ivy that makes an attractive ground cover for small areas of the garden. The carpet of leaves is very low to the ground.
History
This cultivar was discovered by Louis Hahn and his son in Pittsburgh, USA, in the 1950s. It was named after the ‘Shamrock’ hotel in Houston, Texas, where it was introduced in 1957.
Technical details - Hedera helix 'Shamrock'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : helix
- Cultivar: ‘Shamrock’
- Pierot classification: heart-shaped ivy
- Foliage stage: juvenile
- Origin of the species: Europe, from Spain to Norway, but little on the Atlantic coast.
- Origin of cultivar: could be a sport of ‘Meagheri’.
Description of Hedera helix ‘Shamrock’
- Growth habit: spreading, stocky
- Number of lobes: usually 3 rounded lobes
- Leaf length: 3 cm
- Sheet width: 2 cm
- Colour of leaf: dark green
- Colour of veins: light green
- Stem: well-branched
- Colour of stem and petiole: greenish purple
- Hairs: stellate, 3 to 5 branches
Planting, cultivation and maintenance advice for Hedera helix ‘Shamrock’
- Exposure: shade, part shade, sun
- Hardiness: -15°C
- Soil moisture: cool soil
- Soil PH: neutral or chalky
- Soil type: all
- Soil richness: ordinary or humus-bearing
- Use: ground cover, climber, hanging, pot, window box, topiary
- Development: moderate
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
Ivy in literature
“The ivy creeping in the shadow of the old towers is like the past, it never really disappears.”
Nathaniel Hawthorne, The Scarlet Letter
Additional information
| Weight | N/A |
|---|---|
| Stock of 1-litre cups and pots | 0 jar |
| Stock 2 or 4 litre containers | 11 to 20 containers |
| Large stock items | 1 to 2 large subjects |
| General appearance | Ramified, Compact, Staggered, Stocky |
| Type of foliage and colour | Atypical, Green |
| Possible uses | Ground cover, Houseplant, Pots or planters, Hanging plants, Topiary |
| Exhibition | Part shade, Shade, Sun |
| Hardiness | Good hardiness |
| Easy to grow | Easy |
| Speed | Average |
| Vigorous development | Medium |
| Classification according to the Pierot system | From 'Pittsburgh', Bird's Paw |
| Reward obtained | Ivy of the Year, RHS Garden Merit Award |
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