Sorry, not sure if this is the place to put this but anyways, Wilko's by me, has some great offers on fruit tree's/plants so I would guess most wilko's have the same offer.

there are fruit trees which I had for £1.75 (plumb)
and they are selling small plants like grape, Goji-berry, honeyberry, orange, lemon, kiwi, fig's etc, all sorts quite cheap, the most expensive of them plants was only £3.50.

they don't look too healthy, but under right conditions will become good plants.