growing tall cosmos - rich soil?

Posts

• blameitonthedog Posts: 122

  May 2018 edited May 2018

  Last year I potted on about thirty Cosmos into old, ugly black plastic pots (don't know the size but bigger than the standard 2L) with some very poor soil.  I loved that I was able to put the pots - and even move them around to suit - into the borders wherever I wanted a bit more colour and height and the pots completely disappeared in my well-filled borders.
  
  The only downside was that just a few of them wanted to fall over, being a bit top heavy.

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• Fire Posts: 19,096

  May 2018

  Thanks for the thought. Good to know that they don't have a big and pushy root system. I might try that too.
  

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