Shrub or small tree on steep mound?

Hi,

Its complicated to explain but imagine a mound of earth about 1.5m high and 3m across. It’s about a 45 degree slope. 

I want to stick a tree on top of it but I’m scared that it might want to send out roots horizontally and there isn’t any soil there.

Will it be fine or are there certain features that I need to look for in any plant I stick there?

Thanks

Posts

  • pansyfacepansyface PEAK DISTRICT DerbyshirePosts: 14,579
    Is it solid earth or just a thin layer of earth on top of tarmac/stones/old air raid shelter?

    Is the earth sandy or clay or loam or peat or rubbish?

    Do you live in an area of high or low rainfall?

    I can imagine the roots drying out if the conditions are not ideal


    Apophthegm -  a big word for a small thought.
  • FireFire LondonPosts: 5,276
    I don't know, but I imagine a few things might help - looking for trees with a habit of sending down deep roots (and a taproot), rather than wide and shallow. Digging a really deep hole in the middle of mound and filling it with good, nutritious soil / conditioning would encourage roots to go down (easy root run) rather than out. I imagine a dwarf tree would be more likely to fit - dwarf crab apple or acer? (Just an idea)
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