I planted a new mandarin tree a week ago. It has been watered in and been watered every other day. My query is when should I feed it and can this be with my normal citrus food that I use for other citrus trees.

Hi Annie, great question. Spring and summer are the best times to feed citrus trees including mandarin trees. If it is planted in the garden you certainly can use citrus food. If it is planted in a pot or container we recommend Tui Enrich Fruit, Citrus, Tree & Shrub controlled release fertiliser.