Wrinkled skin of branches of cypress bonsai in winter
The branches of cypress bonsai will wrinkle in winter, but the most favorable season for bonsai pruning is winter. At this time, the pine and cypress are in the winter rest period, and the liquid flow basically stops. When trimming at this time, the cortex will not rotate away from the bone due to sprain. Even if there are some minor sprains, they will recover as soon as possible and turn into normal spring sprouting.