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poor drainage

Posted: Sun Feb 02, 2014 4:35 pm
by simonjohn
Hello my soil in one of my beds is very water logged. It has a fair bit of clay in. What can i do to make it better draining. I have an idea but i thought i would get some expert advice. Many thanks

Re: poor drainage

Posted: Sun Feb 02, 2014 5:35 pm
by Kristen
You could mix in compost, to keep the soil open, or sharp sand/grit to open it up, but in my experience the only thing that works well is a land drain. (Trench, put perforated drainage pipe [which comes on a roll] in the bottom, cover the pipe with gravel, backfill. The drainage pipe has to have an outlet, flowing away downhill, or a soakaway - and that probably needs access so you can pump it out in really wet periods - like we are having right now.

Re: poor drainage

Posted: Sun Feb 02, 2014 6:29 pm
by simonjohn
now that is a great idea! thankyou. :D

Re: poor drainage

Posted: Sun Feb 02, 2014 8:35 pm
by Dave Brown
Before doing major work get a long metal rod and bang into the border to see if the drainage is impeded by something. I had a pan of compacted clay about 10" below the surface.... just below dig level. Once I realised that was the problem I was able to break it up without digging it all out. You also be surprised how much builders rubble impacts drainage.

Re: poor drainage

Posted: Sun Feb 02, 2014 9:14 pm
by pdid

Re: poor drainage

Posted: Mon Feb 03, 2014 12:05 am
by fern Rob
I would do try a test pit first.

Re: poor drainage

Posted: Thu Feb 06, 2014 7:20 pm
by simonjohn
my who garden even the lawn gets very water logged. I dug the boarders out and dug down about 2ft and there is a lot of stones now I have turned it over. I dug a section out as an experiment about 2ft deep and filled the bottom full of stones and filled it back in to see how the rain effects that area now.

Re: poor drainage

Posted: Sat Feb 08, 2014 12:08 pm
by greendragon
Maybe plant things that enjoy the boggy ground. Trying to radically change the composition of your soil is going to be a long and expensive process.

Re: poor drainage

Posted: Sat Feb 08, 2014 6:07 pm
by simonjohn
There is one corner where the ground is always boggy and i do plan on leaving that for boggy plants. Just want to sort out my south facing bed as its the hottest part of the garden. Thanks for all the kind advice :-)

Re: poor drainage

Posted: Thu Feb 13, 2014 12:08 pm
by ConcreteJungle
Has anyone used gypsum into their heavy clay soils, does it work to loosen up the soil to take in more water easily?