On Thu, 23 Jul 2015 15:07:16 +0100, Stewart Robert Hinsley wrote:

Out of mild curiosity, has any tried tissue culture for propagating
maples (particularly Japanese maples)?

It's done for rubrum and x freemani, which are an important nursery
crop. Haven't heard of it for palmatums, too easy and cheap to grow from
seed. If you figure 1 yr grafts are worth perhaps 3 pounds in quantity,
it's difficult to add much cost to the understock.



--
Gardening in Lower Normandy