I have 3 citrus trees – Lemon, Lime and Orange. Presently the leaves of the lemon tree are going yellow and falling off at an enormous rate. The other two trees not so much. I have tried tomato feed as I am finding it hard to get citrus feed locally. Any ideas?
They need to be kept frost-free, in good bright light, slightly dry at the compost surface from Ocotber to April, nicely moist otherwise, Feed only from April to September and use a citrus feed or acid-lovers feed such as Miracid.
Lime causes iron deficiency and yellowing of the young leaves.