Plum Reine Claude d'Althan 4-5ft Tall in 6L Pot Large Purple Tasty Fruit,Lovely FlowersFlowering in mid season and fruit can be harvested in mid August. Fruit is sweet and juicy, often used for jams, in canned syrups or you can just eat it fresh. As with all trees from the prunus family, the leaves will start to appear autumnal and slightly shabby with holes, from mid June onwards. This is not a disease, it is just a growth cycle with this type of tree.