Description
Irish ivy - Hedera hibernica ‘Betty Allen’
In a nutshell
Irish ivy, Hedera hibernica ‘Betty Allen’, is a very attractive ivy with shiny dark green foliage.
The leaf has 3 pointed lobes, pointing forwards. The median lobe is often larger than the lateral lobes. The stems are thinner than the type species. The plant is also less branched.
An interesting ivy on a wall or in a pot.
History
This cultivar was discovered in the 1970s in the town of Algesiras, Andalusia, Spain.
Technical details - Hedera hibernica 'Betty Allen'
Botanical information
- Family: Araliaceae
- Genre : Hedera
- Species : hibernica
- Cultivar: ‘Betty Allen’
- Pierot classification: ivy with fan-shaped leaves
- Foliage stage: juvenile
- Origin of the species: Europe, on the Atlantic coast, from Portugal to Scotland
- Origin of cultivar: found in Algesiras, Andalusia, Spain in the 1970s
Description of Hedera hibernica ‘Betty Allen’
- Growth habit: compact, spreading
- Number of lobes: 3 lobes in general, pointed and pointing forwards
- Leaf length: 5 cm
- Sheet width: 4 cm
- Colour of leaf: dark green
- Colour of veins: green
- Colour of stem and petiole: reddish green
- Hair: stellate, small
Planting, growing and care instructions for Hedera hibernica ‘Betty Allen’
- Exposure: shade, part shade, sun
- Hardiness: -15°C
- Soil moisture: cool soil
- Soil PH: neutral, calcareous or acidic
- Soil type: all
- Soil richness: ordinary or humus-bearing
- Use: ground cover, climber, pot, window box
- 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
All about the health of my ivy
What is ivy broomrape?
Ivy broomrape is a parasitic plant that draws its resources from the roots of ivy. It has a stiff, scaly stem bearing spikes of tubular flowers, usually white, yellow or brownish, arranged in dense clusters along the stem.
It is mainly found in southern Europe. It prefers well-drained soils and is often seen in natural environments or in gardens where ivy is grown. It seems to prefer Hedera hibernica, but it can also be found at Hedera helix.
Although it can weaken the ivy by draining its resources, the plant does not seem to suffer unduly. Ivy's root system is large enough to feed the plant, even if it is parasitized.
One of the most effective methods of controlling broomrape is to remove parasitic plants by hand as soon as they are visible. This can help reduce spread, although it does not remove the roots already attached to the ivy. Keeping ivy healthy by proper watering, fertilisation and drainage can help minimise the damage caused by broomrape.
Ivy in literature
“The ivy climbed up the tower, half-hiding the dusty stained glass windows.”










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