The mandarin tree is about 3 years old in a pot and the leaves are curling over and this happens very soon after new ones appear.
09 November 2020 10:02 AM
Curled leaves on citrus could be one of two issues:
https://www.yates.com.au/product/water-saving/soil-wetters/yates-waterwise-soil-wetter-for-lawns-gardens-pots/