Description
Ornamental ivy - Hedera helix ‘Star’
In a nutshell
Ornamental ivy, Hedera helix ‘Star’, is a vigorous plant with branching stems, forming large masses of light to dark green foliage.
The sagittate leaf is made up of 5 lobes, the central lobe being very long and the two lateral lobes pointing forwards to give the leaf a forked appearance.
It can be used as a climber or as a powerful ground cover. It produces annual shoots of over 1 metre and quickly covers a given area.
History
This cultivar is a mutation of ‘Pittsburgh’. It has been known in the United States since the 1940s. It is thought to have been introduced by Louis Hahn Nurseries in Pittsburgh, Pennsylvania.
The occasional question ...
What is a sagitta leaf?
The vocabulary used by botanists to describe plants is very rich. For leaves alone, you can come across dozens of specific terms.
The word ‘sagitté’ comes from the Latin sagitta which means arrow. A sagittate leaf is one whose blade is shaped like an arrow. Similarly, a leaf with a sagittate base is one whose base is shaped like an arrow.
Technical details - Hedera helix 'Star'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : helix
- Cultivar: ‘Star’
- Pierot classification: ivy with bird's-foot leaves
- Foliage stage: juvenile
- Origin of the species: Europe, from Spain to Norway, but little on the Atlantic coast.
- Origin of cultivar: ‘Pittsburgh’ sport, introduced by Louis Hahn Nurseries, Pittsburgh, Pennsylvania, USA
Description of Hedera helix ‘Star’
- Growth habit: stocky, spreading
- Number of lobes: usually 5 lobes
- Leaf length: 8 cm
- Sheet width: 6 cm
- Leaf colour: light to dark green
- Colour of veins: light green
- Colour of stem and petiole: purple green
- Hairs: stellate, 3 to 5 branches
Planting, cultivation and maintenance advice for Hedera helix ‘Star’
- 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, pot, window box, topiary, houseplant
- Development: vigorous, rapid
- Pruning: once a year
- Pests: very rare (spider mites, mealy bugs)
- Diseases: very rare (leaf spots)
Ivy in literature
“She leaned against the old ivy-covered wall, her thoughts lost in the twilight.”







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