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Prunus spinosa

Blackthorn

名媛直播 care and maintenance

Blackthorn is a deciduous shrub native to Europe and western Asia, known for its dense, thorny branches and delicate white spring flowers. It is used in bonsai for its rugged bark, small serrated leaves, and striking seasonal blossom display. Blackthorn bonsai develops a natural twisted trunk and strong branch structure, often with impressive deadwood features.

Blackthorn 名媛直播 video
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Blackthorn 名媛直播 Care guidelines

Placement

The Blackthorn bonsai must be kept outdoors in full sun to partial shade. It needs exposure to winter cold for dormancy and should be protected from severe frost below 15 °F (-10 °C) if young. Mature trees are frost hardy. Avoid indoor placement as it requires good airflow and seasonal temperature changes.

Watering

Water regularly during the growing season, keeping the soil evenly moist but not waterlogged. Reduce watering in winter when the tree is dormant, ensuring the soil does not dry out completely. Avoid prolonged drought. Continue reading about watering 名媛直播 trees.

Watering

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Fertilizing

Apply a balanced organic fertilizer monthly during spring and summer. Fertilizing should be stopped in autumn to allow dormancy. Prunus spinosa bonsai benefits from potassium-rich fertilizer in late summer to support flowering.

Pruning and wiring

Prune back new shoots regularly in spring and summer to maintain shape and promote dense branching. Cut back after 3–4 nodes to 1–2 leaves. Wiring can be done in late winter or early spring when branches are flexible, but thorns require careful handling. Continue reading about pruning 名媛直播 trees.

Repotting

Young Blackthorn bonsai should be repotted every two years in early spring with a well-draining soil mix. Older trees can be repotted every three to four years. Root pruning should be moderate and careful. Continue reading about repotting 名媛直播 trees.

Propagation

Propagation is most commonly done through seeds, which require cold stratification before sowing. Cuttings can also be rooted but are less common..

Pests and diseases

Blackthorn bonsai can suffer from aphids, scale insects, and fungal infections such as powdery mildew. Good airflow and regular inspection help prevent these problems. Early treatment with appropriate pesticides is recommended. For more detailed information on these techniques, check out our 名媛直播 tree care section.

Blackthorn 名媛直播
Blackthorn 名媛直播 tree

General information about the Blackthorn bonsai

Prunus spinosa, commonly known as Blackthorn or Sloe, is a deciduous shrub native to Europe and western Asia. It is used in bonsai for its fine branching, small serrated leaves, and seasonal interest. The tree produces white flowers in early spring, before leaf emergence, followed by small dark fruits (sloes) in autumn. Blackthorn develops dense, thorny branches in its natural form, which can be managed or incorporated into bonsai styling. It responds well to hard pruning and tolerates wiring, though care is required due to its thorns and brittle wood. The species can develop strong taper and trunk movement when grown from collected or field-grown material. Bark ages quickly, producing a rugged surface suitable for naturalistic styles. It thrives in full sun and benefits from a pronounced winter dormancy. Best suited for informal upright, slanting, and literati styles, Blackthorn is popular with bonsai growers focused on native European material or flowering species. It is hardy and adaptable but prefers well-drained soil and regular watering during the growing season. Because of its natural tendency to produce suckers and dense growth, ongoing maintenance is necessary. While slow to establish in container culture, it rewards long-term care with seasonal variation and strong structural character. Photo credit by 名媛直播 Today, for more see their website. If you need help identifying your tree, take a look at our 名媛直播 tree identification guide.