How to prune saskatoon 'thiessen'

Late winter to early spring before bud break. Remove the 2–3 oldest canes to ground level each year to encourage vigorous replacement shoots. Thin crowded branches and lightly head back any stems that are outgrowing the allotted space. Maintain a balanced, open framework.

Annually. Saskatoon 'Thiessen' is one of the most vigorous and upright Amelanchier cultivars. It needs regular pruning to prevent it becoming overly tall and open-centred, and to sustain high fruit yields. Annual renewal of old canes and thinning of crowded growth are the main tasks.

Remove the 2–3 oldest canes to ground level each year to encourage vigorous replacement shoots. Thin crowded branches and lightly head back any stems that are outgrowing the allotted space. Maintain a balanced, open framework.