Japanese White Birch (Betula platyphylla japonica)
This species is known for its clean white bark, which becomes more prominent with age and sun exposure. Leaves are relatively small for a birch, making it a decent candidate for larger bonsai or naturalistic styles. Fast-growing, cold-hardy, and responsive to pruning. Can be a rewarding but challenging project for growers who enjoy working with vigorous species.
 
These are seed grown pre-bonsai, trunk curvature & character established while young while leaving plenty of branches to work with and develop further. 
 
📢 Cold-hardy to zone 3. Requires winter dormancy and should be kept outdoors year-round. In colder climates, place on the ground, mulch around the pot, and protect from wind.
 
Care tips:
Full sun encourages strong growth and bark color
Water regularly—doesn’t tolerate prolonged drought
Deciduous—drops leaves in fall, requires a winter rest