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Sunk raised bed next to retaining wall - what to do?

Just looking for a bit of advice if anyone can help :-)

Description of area:
I have a 4ft high raised bed at the back of my garden, which is fronted with sleepers. The garden to the left of my property is approx 6ft lower than mine.

Issue:
The section of raised bed directly next to the boundary has sunk by about 1/2 ft over the winter (we think due to the high levels of rain we’ve had).
There is no sign of damage to the neighbours retaining wall.

Can anyone advise what’s best to top the raised bed up with? We were just going to use compost but am wondering is a layer of sub base or maybe sand would help.

I’m definitely a novice gardener, with no experience. So don’t worry about telling me if my options are a bad idea 😊

Posts

  • DovefromaboveDovefromabove Central Norfolk UKPosts: 77,365
    Hi and welcome @raquers82  😊 

    I’d use screened topsoil if you can get it at the moment  ... otherwise John Innes No 2 or 3 loam based compost. 

    Ordinary multipurpose compost is  very light and breaks down to dust after a season or so. It’s not intended for longer term planting. 

    Hope that helps 😊 
    “I am not lost, for I know where I am. But however, where I am may be lost.” Winnie the Pooh







  • Great, thank you. 
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