Hi, how do I help my mandarin tree fruit to ripen?

Hi Bhikhu, all that is needed it time. Your fruit will suddenly start colouring up and ripening, make sure it is regularly watered, mulch around it in summer and feed with a fertiliser such as Tui Citrus Food in spring and again in late summer, early autumn. Applying fertiliser to your tree will help improve the fruit flavour. The Tui Team.