Two years ago I bought a couple of cheap apple trees, well the looked more like sticks actually, from Aldi, or maybe it was Lidl. I seem to remember they cost about £3 each.
Like everything in my garden they all have two chances, live or die. The trees were planted in compost and mostly left to their own defences, sometimes I would remember to water them.
Last year we had ONE apple which was ceremoniously divided into two
for Chris and I to have a taste!
Look at them now, wow branches breaking under the strain of all the apples and they taste great.