Learning how to water plants to increase growth in pots, container or garden - especially how to water roots and tubers. Specialities: root growth or tuber growth of lawns, fuchsias, geraniums, dahlias and begonias.

5 August 2011

Still No Roots On Dahlia Cup Cutting

dahlia pot cutting not yet showing rootsStill no roots showing in dahlia cup cutting taken six weeks ago. Not sure what this means. It has taken and is growing;it is also flowering. When cuttings are rooted in spring, roots are usually visible at the bottom of the pot within four weeks, often sooner. I know a 500ml (pint) beer pot is much deeper, but they should have got down there by now. What's the reason?

  • dahlia roots are 'photophobic' (light-hating) and are keeping out of sight
  • dahlias do not produce roots whilst flowering
  • a pest is destroying the roots
Either or all - or even something completely different - could be the problem. Growing is a mysterious process.

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