Bonsai Training Information

Cotoneaster simonsii
Himalayan Cotoneaster, Simons Cotoneaster

Though not native to Britain it has been grown in gardens and parks. Now days it is quite frequently found growing wild, possible through bird droppings and wind/water dispersal. Found in scrubby grounds, forestry ridges and often well up the hillside. As a Bonsai it makes excellent specimens is easy to cultivate and offers year around features, soft foliage in spring followed by flushes of white flowers and fruits in autumns, foliages turns a lovely red brown in autumn/winter and berries stay on long into the winter.


Informal Upright, Slanting, Cascade, Semi-cascade, Literate, Group planting, Saikei




Can be grown in Sunny or shade position, but flowers best in full sun positions. Protect from frost if long cold spells are expected.


Water well keep moist but not wet and ensure that the plant does not dry out during the hotter summer months. During winter keep pot moist not wet. Dont water blossoms as they wilt easily.


Every two weeks during the growing season after they have flowered. In spring a earky summer use a balanced general purpose fertiliser, switching to a low nitrogen fertiliser late summer.

Leaf and Branch Pruning:

New shoots should be shortened to one or two leaves throughout the growing season. Heavier pruning should be done between late winter and spring. Do prune after mid summer as this will remove next years flower buds.

Re-potting & Growing Medium:

A fast growing species younger plants need to be repotted every year in between late winter and early spring. Use a using fast-draining soil 30% Loan, 30% Peat, 30% Sharp Sand. Remove upto to a third of the roots but do not bare-root. Chage the soil gradually by replcing all the soil in a small wedge at a time (wedge rotation).


Wire just before bud break in spring. Protect the bark when wiring. Do not leave wire on for more than one growing season at a time.


Cotoneaster likes to sucker, so if it is not being grown as a clump, suckers must be vigilantly removed to promote trunk growth. Cotoneasters lend themselves to mame and shohin, but are harder to grow as large bonsai.

More Images:

Print Bonsai Care Guide for Cotoneaster simonsii