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lilac-tree-losing-leaves

I have taken over care of a friend's garden temporarily and the Lilac tree which bloomed well in the spring is now covered in brown leaves.  There is no obvious cause and I am tempted to cut back the stems to encourage healthy new growth.  I would certainly do this if it was in my own garden.  Any advice would be appreciated. Thanks.

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  • DovefromaboveDovefromabove Posts: 88,111

    Lilacs often lose leaves early in the autumn, it's nearly September and we've certainly had a lot of hot dry weather and if it's a bit parched it might have decided it's better to lose leaves now in order to slow down the rate of transpiration (loss of moisture by evaporation from the leaves).

    I certainly wouldn't do anything at ths time of year that will encourage new growth - it won't be ripe enough to withstand the frosts when the winter arrives and will be lost.

    If the lilac tree needs anything I suggest it might be a thorough soaking and the application of a good layer of mulch (don't let the mulch touch the bark on the trunk).

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    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • EsspeeEsspee Posts: 274

    Thank you for that Dfa.  Will leave it until springtime then cut out old wood once I see signs of life.

  • My new lilac, Syringa vulgaris 'Sensation', only 2 ft. tall (60cm) lost all its leaves and has one little bud at the top.  I moved if from its large pot to the garden late November. Is there any hope, is there anything I can do at this point?  Thanks!
  • DovefromaboveDovefromabove Posts: 88,111
    edited December 2023
    Hello @marjorieldarrow23568 abd welcome to the forum 😊 
    Lilacs are deciduous … it’s lost its leaves for the winter … all being well you’ll see new ones in the spring.  Nothing to worry about. 😊  

    Dont feed now but a bit of fish  blood & bone in March will be fine. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





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