Raised Beds

edited 30 November -1 at 1:00AM in Greenfingered MoneySaving
5 replies 1.5K views
kerri_gtkerri_gt Forumite
10.5K Posts
Part of the Furniture 10,000 Posts Name Dropper Xmas Saver!
✭✭✭✭✭
edited 30 November -1 at 1:00AM in Greenfingered MoneySaving
Hi, apologies if this has been asked before but we've had some raised beds built into our new patio - they're made of concrete blocks and rendered. Currently the bottoms are just hardcore and and 'blobs' of render that seem to have been lobbed about in the rendering process. Most loose bits of building materials have been removed but there's still enough 'stuff' at the bottom to assume the drainage would be pretty reasonable.

My question is whether I should / need to line the beds with anything else before planting - they will just have a couple of small ornamental trees and some grasses planted - nothing with special requirements. Or can I just fill the beds with soil and compost then plant up?

The builder has left a box with some hardcore and sand waste - wondering if I should put this at the bottom of the beds for additional drainage or whether it's not necessary.

The beds extend below the top level of the patio so there's no issue of anything escaping from the bottom into the paving.

Many thanks
Feb 2015 NSD Challenge 8/12
JAN NSD 11/16


Replies

  • FarwayFarway Forumite
    10.4K Posts
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    ✭✭✭✭✭
    Although not strictly necessary I would line the interior walls, not the base, with something like pond liner, or just old compost sacks or similar

    Reason would be to stop damp creeping into the walls and subsequent external mould, not damaging but possibly unsightly in years to come
  • MojisolaMojisola Forumite
    34.6K Posts
    Part of the Furniture 10,000 Posts Name Dropper
    ✭✭✭✭✭
    kerri_gt wrote: »
    we've had some raised beds built into our new patio - they're made of concrete blocks and rendered.

    they will just have a couple of small ornamental trees and some grasses planted

    How high are the beds? Will you get a reasonable depth of soil in them for trees to thrive?
  • GrenageGrenage Forumite
    2.6K Posts
    Seventh Anniversary 1,000 Posts Name Dropper
    ✭✭✭✭
    If the beds extend below the slabs, I imagine a tree's roots will just move down and out.
  • kerri_gtkerri_gt Forumite
    10.5K Posts
    Part of the Furniture 10,000 Posts Name Dropper Xmas Saver!
    ✭✭✭✭✭
    Mojisola wrote: »
    How high are the beds? Will you get a reasonable depth of soil in them for trees to thrive?

    prob about 50cm in depth - they are only small olive trees which we intend to keep small - the rest of the planting will be grasses
    Feb 2015 NSD Challenge 8/12
    JAN NSD 11/16


  • MojisolaMojisola Forumite
    34.6K Posts
    Part of the Furniture 10,000 Posts Name Dropper
    ✭✭✭✭✭
    kerri_gt wrote: »
    prob about 50cm in depth - they are only small olive trees which we intend to keep small - the rest of the planting will be grasses

    That should be fine. Don't give them too rich a mix of new soil/compost - think of the kind of poor, stony soils they naturally grow on.
This discussion has been closed.
Latest MSE News and Guides

Tesco launches its first ever...

...checkout-free supermarket store

MSE News

25+ ways to stop scams

Plus what to do if you're a victim

MSE Guides

Beauty Advent calendar round-up

The Body Shop, Holland & Barrett etc

MSE Deals