Autumn planting

Autumn does seem to be in the air and the annuals in the garden are looking a bit past their best. This is my first year or proper gardening and as its a new house there was no established garden just a big turfed square (heavy clay soil). We arrived too late to do any autumn planting last year but have planted some dwarf fruit trees in the spring. I would like a couple of columnar trees with roots that dont invade my house or nearby houses so am looking for a few suggestions. I have seen tall thin flowering cherries in other gardens and anything else like that would be nice as a screen- defintely no conifers.

So off to Spalding today (never been there before) to ssee graden centres and nurseries hopefully to thik about the bulbs to plant in the autumn so again any recoemmendations gratefully recieved. Have you planned any autumn gardening yet?