Watering Clematis

Discussion in 'Other Plants' started by Kevin Cowans, May 21, 2020 at 5:14 PM.

  1. Kevin Cowans

    Kevin Cowans Gardener

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    Hello all

    I hope you are well.

    Could someone ( @ARMANDII ) please clarify the situation regarding the watering of Clematis?

    There seems to be conflicting advice around, some places say Clematis should be watered a few times a week, some say once a week and others advise not to water Clematis at all since it will force the plant to grow a deeper root system to look for water.

    What is the correct advice regarding the watering of Clematis?

    In particular I am referring to Clematis Montana 'Mayleen', Clematis 'Nelly Moser', Clematis 'Rouge Cardinal' and Clematis 'Daniel Deronda'.

    Thanks in advance

    Kevin
     
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    • ARMANDII

      ARMANDII Low Flying Administrator Staff Member

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      Hi Kevin, I can understand you and everyone else wanting to know about Clematis care.

      Well, with regard to the above advice, Kevin, it is the wrong advice for Clematis as Clematis like their roots planted deep, kept fairly moist, but not soaked as they don't like standing for long periods in water. The above advice was touted on Gardeners World some years ago, Kevin, and meant for when Tree planting but, to be honest, I haven't seen it being mentioned for years.......and it is certainly not the correct advice for Clematis.

      When planting a Clematis plant it 3 or 4 inches deeper, if you can, than when it was in the pot, give it a good water and then place a stone(s) over it's root area to help keep it cool. You only need to water it once a week, Kevin, and once established the Clematis will grow away while being grateful for that weekly watering......it wouldn't harm it if you gave it an occasional feed of something like Tomato Feed during the period it's growing away.
       
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      • Kevin Cowans

        Kevin Cowans Gardener

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        Hello @ARMANDII

        Thanks for the reply.

        So, a weekly watering is what is required, thanks for that.

        My soil is a sandy loam so it drains quite freely so hopefully the Clematis would not be standing in water for any prolonged periods.

        With regards to the planting depth, I made sure that my Clematis were planted approximately four inches deeper than they were in their pots, so all good there :)

        Finally, something I never really understood about placing the stones over the roots of a Clematis to keep the roots cool, surely, the stones will heat up and radiate that heat into the soil faster than the sun just hitting the soil, am I wrong in that?

        Thanks for your help, I am learning bit by bit :)

        Kevin
         
      • ARMANDII

        ARMANDII Low Flying Administrator Staff Member

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        The answer to that, Kevin, is Yes....and No:heehee: The stone actually will heat up as you say, but by absorbing that heat it shields the soil underneath and any heat transfer by the stone to the soil is minimal. Try it, put the stone on the watered soil and leave it for for a couple of hours in sunshine then lift the stone and put your fingers on the soil underneath and then on the soil next to it...........Physics say the soil underneath the soil will be cooler and the unprotected soil warmer:love30:
         
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        • Kevin Cowans

          Kevin Cowans Gardener

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          Hello @ARMANDII

          Thanks for the information, it does make sense now.

          One thing I excel at is overthinking things, I am really good at that :)

          Thankfully, my Clematis are shadowed by other planting so keeping the roots cool should not be an issue.

          Thanks for all your help, it is appreciated.

          Kevin
           
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          • ARMANDII

            ARMANDII Low Flying Administrator Staff Member

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