How to Prune silvanberry?
Usually fan trained, but blackberries can be trained in many creative ways. The principle is cut out fruited canes, leaving new growth to train in for fruiting the following year. Further advice on pruning blackberries

silvanberry · Rubus 'Silvan'
Also known as: American bramble
Grow in well-drained, deep soil that has been enriched with organic matter such as well-rotted manure or compost
Usually fan trained, but blackberries can be trained in many creative ways. The principle is cut out fruited canes, leaving new growth to train in for fruiting the following year. Further advice on pruning blackberries