We are in the process of landscaping the garden and are creating a play area on one side for DC with a playhouse/ swings etc. There are currently no plants in the garden which is an ongoing project and DS(nearly 3) keeps asking for trees as he's currently obsessed. We want to encourage his love of trees so want to plant a tree in the play area for him by the playhouse (he calls it his treehouse so this will be 'his' tree) but are not sure what's suitable (novice gardeners learning as we go!). Can anyone suggest some trees that meet these requirements?
Max height 6m, spread 4/5m. Ideal height probably 4-5m
Clay, well draining soil
Sunny spot (south facing garden, but tree will be about 2-3m away from the SW corner fence)
Fairly quick growing so DS can watch it grow
Fairly hardy (to cope with toddler touching it, and we are in Scotland)
Something of interest for him - tactile/flowers/fruits etc. He loves purple
Price - as cheap as possible!
Does such a tree exist? Is there anything else we should consider? Thanks in advance for any suggestions 