Sorbus aucuparia/ Rowan or Mountain Ash Species Guide
A fast growing, vigorous tree that is difficult to style effectively for bonsai due to it's long pinnate leaves.
Ease of Cultivation 8/10 Suitablity and Ease for Bonsai Styling 4/10
Position Outside tree only. Full sun or partial shade. Frost protection required below -10°C.
Repotting Every one or two years as buds extend in Spring. Use basic soil mix.
Pruning Trim new shoots continually to maintain shape. Prune branches back hard in late-Winter. Prune hard during midsummer to create branching.
Reduce leaf size by removing leaflets to leave between 2 and 6.
Propagation Sow seed outside in Autumn. Greenwood cuttings
in early Summer.
Pests and Diseases Aphids, red spider mite, scale insects
and fireblight.
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