Lauren Alex O’ Hagan, Cardiff University
01.08.2023 - 14:46 / gardenerstips.co.uk / hortoris
Arduaine Garden in Scotland is well-known in international Rhododendron circles for the number of wonderful species grown here, many of which are considered tender elsewhere and grow unusually under a canopy of mature Japanese larch. To some people, rhododendrons are those unpleasant purple-flowered objects which clog up our native woodlands. This is but one species, Rhododendron ponticum or a hybrid of it which spreads rapidly both by seed and sucker. Arduaine’s collection is extensive containing about 400 distinct species. The rhododendrons range from the large-leaved giants such as Rhododendron protistum, Rhododendron sinogrande and Rhododendron macabeanum to the small-leaved, high altitude plants which are often classed as rock plants, a sample of which would include Rhododendron fastigiatum, impeditum and orthocladum. In between these two extremes sit the majority of species of differing sizes with a variety of foliage shapes and an astonishing range of flower colour and form. One of the specialities is the only Rhododendron from Ceylon – Rhododendron arboreum subsp. zeylanicum.
Scotland is famous for its Rhododendrons and the Glendoick nursery which provided the comments on growth rates, is worth seeking out. Among special plants are a large number of Rhododendron species and hybrids in the Maddenia subsection, which is probably best known for containing species and hybrids such as Rhododendrons lindleyi, maddenii, ‘Fragrantissimum’ and ‘Lady Alice Fitzwilliam’. Most of these are tender, white and highly scented and can be grown in the conservatory.
This picture shows what I call the rime of the ancient mariner as I groweth one of three. Most Gardeners look after the great and small, both bird and beast……
Farewell,
Lauren Alex O’ Hagan, Cardiff University
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Ornamental Japanese Maples are widely available for planting in your garden. The autumn colouring makes these trees spectacular when planted en mass in a woodland or Japanese garden setting.
My Rhododendrons were in full bloom when a late frost caught them quite badly. Winter has been wet and mild but if the USA is anything to go by hard frosts may still be on the way so look after your early flowering Rhododendrons.
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