Red Horse Chestnut - tree - October 2018
A Red Horse Chestnut tree near Dix's fields of Exeter, UK. === Red Horse Chestnut is a cross between the more familiar Horse Chestnut (conker tree) and the American Red Buckeye. The Red Horse Chestnut has pink flowers and there are several cultivars which are: ‘Briotii’ which has deep scarlet flowers in 10-inch-long panicles and no fruit ‘Rosea’ has pink flowers ‘O’Neil’s Red’ has double red flowers Propagation is from seed, an oddity for most hybrids. The flowers begin to show at the end of April right through to the beginning of June. Typically planted in parks and private gardens, but occasionally planted as a street tree. Due to the excessive leaf litter and fruit (conkers) they can leave quite a lot of ground mess. === Botanical name: Aesculus carnea All Common Names: red horse-chestnut, red horsechestnut Family (Botanic): Sapindaceae (formerly Hippocastanaceae) Tree or Plant Type: Tree Foliage: Deciduous (seasonally loses leaves) Native Locale: Non-native Planting Site: Residential and parks Landscape Uses: Parkway/street, Shade tree, Specimen Size Range: Medium tree (25-40 feet) Mature Height: 30-40 feet Mature Width: 30-40 feet Light Exposure: Full sun (6 hrs direct light daily), Partial sun/shade (4-6 hrs light daily) Soil Preference: Acid soil, Moist, well-drained soil Acid Soils: Prefers Alkaline Soils: Moderately Tolerant Salt Spray: Tolerant Soil Salt: Intolerant Drought Conditions: Intolerant Poor Drainage: Intolerant Planting Considerations: Messy fruit/plant parts Ornamental Interest: Spring blossoms, Showy flowers Season of Interest: Late spring Flower Color & Fragrance: Pink, Red Shape or Form: Round Growth Rate: Moderate Transplants Well: No Wildlife: Insect pollinators, Small mammals More Information: More tolerant of dryness than horse-chestnut, but still grows best in a moist soil. Disease, pests and problems Large spiny fruits can be messy. Leaf blotch and mildew are possible problems, but less so on this species than on related species. Disease, pest and problem resistance This hybrid is less susceptible to leaf blotch and mildew than European horse-chestnut. Native geographic location and habitat This is a hybrid cross between red buckeye (Aesculus pavia) and Common horse-chestnut (Aesculus hippocastanum). Bark color and texture Bark is gray-brown, becoming platy as the tree ages. Leaf or needle arrangement, size, shape, and texture Palmately compound leaves arranged in pairs (opposite). Dark green with 5 or sometimes 7 leaflets. Fall color is yellow-brown. Flower arrangement, shape, and size 6 to 8 inch long, cone-shaped terminal cluster. Flower color varies from pink to red. Fruit, cone, nut, and seed descriptions Shiny brown nuts in a 1 ½” prickly husk. Horse-chestnuts are not true chestnuts and should not be eaten. Cultivars and their differences Ruby Red Horse-chestnut (Aesculus x carnea ‘Briotii’): 25 to 35 feet high and 25 to 35 feet wide with a compact, rounded shape Deep red flowers with yellow throats bloom in May
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