Ilex species/Holly Species Guide
Ilex includes shrubs and climbers from woodland in tropical, subtropical and temperate regions. Spiny-leaved varieties have coarse growth looks unattractive as bonsai. Suitable species include I. crenata/ Japanese Evergreen Holly and I. serrata/ Japanese winterberry.
Ease of Cultivation 7/10 Suitablity and Ease for Bonsai Styling 7/10
Position Outdoor tree only. Sun or Shade, some protection in temperatures below -5°C is necessary.
Repotting Annually in Spring as new buds extend, use a basic soil mix.
Pruning Trim to shape; Ilex crenata has brittle branches and care should be taken when wiring.
Propagation Sow seed outside in Autumn. Germination can take 2-3 years. Take semi-ripe cuttings in late Summer or early Autumn.
Pests and Diseases Young shoots can be attacked by aphids, scale insects on Ilex crenata.
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