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Encourage growth of pleached holm oaks

Hi
Last year I planted 4 pleached Holm oak trees (Quercus ilex) along the boundary of our garden to provide some privacy. These look good but need to thicken up a bit in order to provide the necessary screening. 
Does anyone know if there is anything I can do to encourage  growth, other than keeping them watered?
Many thanks. 

Posts

  • Hostafan1Hostafan1 Posts: 34,876
    If they were only planted last year , I'd say they're settling in and using their energy on producing new root growth. 
    I think you need to be patient and let them settle in.
    Devon.
  • Ok then, thanks Hostafan1. I suspected that might be the case but thought it was worth checking. 
    As a follow up, when they were planted toward end of summer last year I was watering them quite a lot for the couple of months after planting them. Since then the English weather has taken care of that for me. Wondering now when we get to spring / summer this year, will these still need lots of extra watering?
  • Hostafan1Hostafan1 Posts: 34,876
    I'd only water them this year if we have prolonged periods of no rain. 
    Much depends upon your soil type. 
    Does it drain freely or not? You need to use your judgement
    Devon.
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