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Plants for very shallow soil

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Question from Julie Macavoy

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I'm having my patio re-laid with the intention of extending my border with some plants. However, when they removed the existing flags, there was a massive concrete layer underneath. I cannot get it removed, too big and costly, so I intend to just soil over it. The soil depth will be about 2 inches (50cms). Can anyone suggest some plants that will cope with such shallow soil? I like flowering plants, maybe some ground cover ones. The border will be in sunshine until early afternoon and I don't particularly want to have to keep watering it so maybe something that copes with dry conditions, too. Am I asking too much? If I can't find anything, I'll probably have to resort to gravel and pot plants on top. Thanks, Julie

  • Views: 318
  • Replies: 2
  • Posted: Mon. 16th October 2017 17:24

Re: Plants for very shallow soil

Reply from Carol

Many of the alpines will cope - ordinary things like stonecrops can be quite interesting colours all the time and will flower. I would think that things like Arenaria, and Erigeron and the sorts of things that grow in cracks will also cope. Campanula muralis doesn't need a lot of soil and maybe some of the smaller hardy geraniums ("macedonica"?). What would you really like it to look like?

  • Posted: Mon. 16th October 2017 17:36

Re: Re: Plants for very shallow soil

Reply from Julie Macavoy

Thanks Carol. Your suggestions look great. I'll definitely be getting all of those suggestions.

  • Posted: Tue. 17th October 2017 12:16