As an experienced arborist specializing in large shade trees like the mulberry plane tree, I'll address your question on pruning size with practical, field-tested advice.
Pictures tell the story best—check the ones below. Remove small branches entirely. Retain main structural branches (carpenter branches) and select new shoots, shortening them to 20-30 cm (up to 50 cm) just above a bud positioned at the base or facing outward. If the tree shows sun damage on the trunk top or branch bases, prune less aggressively to preserve shade over those areas.
This approach promotes healthy regrowth while maintaining the tree's form. Always prioritize safety—mulberry plane wood is brittle, so use caution if climbing.
Here are clear before-and-after examples from real pruning jobs.
Mulberry plane tree before pruning
Mulberry plane tree after pruning
Pruning isn't an exact science, but proven rules ensure success: Make clean cuts 2-3 cm above a bud—2 cm weakens it, over 3 cm leaves drying stubs that invite fungi. Disinfect tools between cuts to prevent disease spread.
The thin, near-horizontal branch in one photo could be removed, but its position offers potential shade for lower branches or fills a gap—decisions like this come from years of hands-on experience balancing structure and vitality.
