Purple-leaf plum, scientifically known as *Prunus cerasifera* 'Atropurpurea', is a deciduous tree belonging to the Rosaceae family. Native to China, it's widely cultivated across northern China and areas further south. This ornamental tree is highly valued in gardening for its striking appearance and adaptability.
Typically reaching heights of 6 to 7 meters, the purple-leaf plum is characterized by its vibrant purple-red foliage, which is obovate in shape and has serrated edges. Its blossoms appear from mid-April to mid-May, featuring light red or pink petals that bloom singly. The fruit is round and generally not used for consumption but adds visual interest to the tree.
This species thrives in full sun and well-drained sandy loam soil. It is drought-tolerant, cold-resistant, and hardy, but it does have specific soil requirements. Planting in shaded areas can lead to weaker growth and darker leaves, while low-lying regions may cause waterlogging, leading to root rot. To ensure healthy growth, apply two or three bowls of fermented manure around the planting hole. In early spring each year, add organic fertilizer to promote vigorous growth and colorful blooms.
Watering should be done before spring begins, and during the pre- and post-frost periods, use thawed water to avoid shock. Normally, watering is unnecessary unless the weather is extremely dry. Be cautious not to overwater, as purple-leaf plum is sensitive to flooding. Proper drainage is essential to prevent root rot.
Pruning is typically done after leaf fall in winter. Focus on removing dense branches, drooping shoots, inward-growing branches, and any diseased or pest-infested parts. Also, trim long lateral branches to maintain a compact and full canopy. Common pests include moths and other insects, which can be controlled using 40% omethoate emulsifiable concentrate.
Propagation is usually done through bud grafting, as young purple-leaf plum seedlings often develop green leaves. Bud grafting is simple, efficient, and allows the plant to flower within 3 to 4 years. Rootstocks are typically 2-year-old peach trees, selected for their strong growth. Before grafting, cut back the rootstock to a 5–7 cm stump. In mid to late June, choose healthy scions with buds on vigorous shoots. Using a sterilized knife, make a 30-degree cut 2 cm below the bud and 1 cm above it. Carefully remove the bud and make a "T" shaped incision on the rootstock, then secure the graft with plastic tape.
After about 7 days, if the graft shows no signs of wilting, it is likely successful. Remove the tape after approximately 25 days. With proper care, the grafted tree will grow into a beautiful, flowering specimen.
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