Firstly, it'll be very expensive, determine the clients disposable income because a litre sized pot grown one (height about 12" x 12") will cost in the region of £8-10.

Ryan, I think that you are on the wrong track somewhere. There is Gardenia Klem's Hardy which is a dwarf shrub which as the name suggests can survive in our climate in protected spot. The tree form is Gardenia thunbergia which is a small tree. The only problem is, if you could find these trees, you couldn't plant them outside as they need a climate similar to South Africa to survive.

Ryan, I think that you are on the wrong track somewhere. There is Gardenia Klem's Hardy which is a dwarf shrub which as the name suggests can survive in our climate in protected spot. The tree form is Gardenia thunbergia which is a small tree. The only problem is, if you could find these trees, you couldn't plant them outside as they need a climate similar to South Africa to survive.

Maybe tap this info. Ryan into Google and you might be able to find what you need.

Put 'mature plant suppliers' into Google - there's the Big Plant Nursery and Halls that I can think of, who may, or may not, have the Gardenia you want. I'm assuming they're for indoor use...