Sorbus decora, commonly known as the showy mountain-ash or whitebeam, is a deciduous tree native to northeastern North America and Greenland. This plant thrives in moist, well-drained soils ranging from light (sandy) to heavy (clay), with a pH between 4 and 7. It can grow up to 10 meters tall and prefers full sun to partial shade. Known for its ornamental value, Sorbus decora features clusters of white flowers followed by bright red berries that are edible but not commonly used in culinary applications. Its distinctive feature is the display of numerous small white flowers in spring, which give way to attractive autumn foliage color before leaf drop.
Sorbus decora, commonly known as the showy mountain-ash or whitebeam, is a deciduous tree native to northeastern North America and Greenland. This plant thrives in moist, well-drained soils ranging from light (sandy) to heavy (clay), with a pH between 4 and 7.
Start with planting Sorbus decora in a sunny spot and follow these beginner-friendly steps.
A young Sorbus decora plant, garden gloves, a spade or trowel.
Plant in spring after the last frost or fall before the first freeze.
Ensure soil is well-draining with a pH between 4 and 7. Loosen the soil to about 30 cm deep.
Dig a hole twice as wide but not deeper than the root ball, then place the plant in it.
Water regularly to keep the soil moist. Avoid overwatering which can lead to root rot.
Water when the top inch of soil feels dry. Fertilize once a year in spring with compost or a balanced fertilizer.
Prune in late winter to early spring to maintain shape and remove dead branches.
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