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I bought a lemon tree about 18 months ago, I kept it outside in the summer and inside my heated (50F) greenhouse in the winter. 

The new leaves (since I've bought it) look discoloured and not like the original ones, what do you think is going wrong – I attach a photo.


  • BorderlineBorderline Posts: 4,700

    I don't see a photo. You may need to reduce the size for it to show up.

    If your leaves are a lighter shade when young, it's normal, and once they mature they will turn into a darker shade. However, your leaves could be showing signs of not being fed enough during the growing season. You need to feed them a high nitrogen feed in the warmer months to keep them growing. Also, there is no need for the greenhouse to be heated either. A cool environment in the winter time would suit them better. Also, rain water is always better than tap water.

  • image

  • ObelixxObelixx Posts: 29,637

    Hungry.  Needs feeding as suggested above but I'd give it a feed of liquid tomato food or seaweed now to correct those pale leaves and then go to the nitrogen feeds from spring and into summer.

    The RHS offers this advice on caring for citrus plants -

    Vendée - 20kms from Atlantic coast.
    "We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
  • Many thanks. The poor thing!

  • RedwingRedwing Posts: 1,439

    It’s not a “poor thing “, looks ok to me. Do as Obelix suggests and hopefully it’ll green up by spring. Don’t expect it to happen immediately.

    Based in Sussex, I garden to encourage as many birds to my garden as possible.
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