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Aesculus x glaucescens
Aesculus x glaucescens
Aesculus x glaucescens
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Dispatch by letter from €3.90.
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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And here is the Aesculus x glaucescens (synonym Aesculus x neglecta), a very rare hybrid horse chestnut in cultivation. It is a medium-sized tree, known for its pale yellow spring flowering, but especially for its finely cut foliage that becomes fiery in autumn. Like other American ornamental horse chestnuts, it is not too bulky, rather disease-resistant, remarkably colourful, and perfectly cold-hardy.
The Aesculus x glaucescens is a very ancient natural hybrid resulting from the cross-breeding between the very compact Aesculus sylvatica, native to the Appalachian forests of the USA, and the large Aesculus flava, a native tree of the eastern United States. This moderately-sized horse chestnut forms a trunk topped with a rounded and loose crown. At maturity, its dimensions reach 10 to 15 m in height and 5 to 10 m in width. Its branches bear smooth, slightly sticky buds. The leaves are digitate, composed of 5 leaflets, attached to the branch by short petioles. The leaflets are oblong-ovate, long-pointed, measuring up to 15 cm long. The young spring shoots are brownish, unfolding into light green leaves, then green, with a yellowish-green underside. In autumn, they gradually turn red. The nectariferous flowering takes place in May, more or less early depending on the climate. The very small flowers are pale yellow, veined with red at the base of the petals. They are grouped in fairly loose inflorescences, 10 to 15 cm long. It blooms in the second half of May. The fruits are smooth and brown, measuring 2 to 3 cm in diameter. Each one contains a seed. The trunk of this small tree is covered with smooth, brown bark.
Aesculus x neglecta thrives in deep, moist soil, preferably non-calcareous, in sunny or semi-shaded positions. It can be used as a standalone tree in a medium-sized garden or on a large plot of land. It can also be integrated into a bed of large shrubs or small trees with flowering or autumn foliage. It forms a beautiful combination with a blue-flowered Hydrangea like the Hydrangea serrata Blue Bird, with the Parrotia persica, the Hydrangea quercifolia, the silverberry or the Cotinus Royal Purple for example.
Aesculus x glaucescens in pictures
Plant habit
Flowering
Foliage
Botanical data
Aesculus x glaucescens should be planted in spring or autumn in a deep, slightly moist soil that is fertile, slightly acidic, neutral, or very slightly alkaline. It does not like very dry and/or very alkaline soils. Plant it in a sunny or semi-shaded location. Digging over the soil is recommended before planting. Make sure to give it enough space, as it can reach a width of 10m for the crown. Water and mulch to maintain soil moisture. Fertilise in spring. Prune in February by removing old stems. This variety appears to be less susceptible to diseases that typically affect our large horse chestnuts. It is also relatively resistant to the horse chestnut leaf miner.
Planting period
Intended location
Care
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
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The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.