Hi I have two new (12 months old ) small cumquat standard trees in potting mix at the front door. They are only about 600mm in height. All The leaves have a blotchy look to them and have falling off.
New growth did start but the leaves are doing the same thing
They get regular water and have been feed with slow release fertiliser
The potting mix drains well.
My guess is that they are missing something in the potting mix
Thanks for your help. John
Drainage good - fertilising - watered - all sounds good. It sounds like they are not getting access to all the nutrients included in your feedings - so give them a good Seaweed mix tonic. The good bugs in there may help release the nutrients which can get locked up in the soil