John Tradescant the elder grew it in England over 200 years ago and was disappointed that it produced no fruit. ( I looked at Wikipedia ). I have found that it took several years for a tree that I bought to settle in and start producing flowers. Then it set fruit only if I pollenized it myself. So, I am not familiar enough with it to say what to do, but if it starts flowering many years from now, you need to fill-in for the bees.

Guess I d better keep it in a container and carry on as have done and protect it in the winter in the greehouse .....Thanks for your in put
Have to buy some pommies and tie them on so it looks good..........aye

You could try to make it into a bonsai

Another good idea.of yours................