So what are the differences between a 'Semi' and a 'full' cascade. I'd suggest that they lay in the angle of the major trunk, below the horizontal. A Semi-cascade will have an angle no greater than 45º.
The Tree illustrated above is a representation of one of my San-Jose junipers, converted from nursery stock. When I purchased the tree, It had a major branch, almost horizontal to the ground and it soon became apparent that there was not a lot to be done with it, other than remove it, or turn it into a jin. This left me with a branch which I've been developing over the past few years.
Semi cascade trees need to be planted in deep pots for stability.
© Allen. C. Roffey 09:02 28/01/2001