I am convinced that there is something I'm doing wrong with my trident maple. I have had this tree for 13 years. Every spring it produces nice green leaves. BUT.... every year aound the middle of June, the tips of the leaves start to turn brown until eventually it over takes the whole leaf. The tree continues to grow ( as shown in the pictures) but never seems to thrive. Over the past several years I have tried everything. The tree grows in a very well draining soil ( lave, turface, hydite, granite and a little akadama). I feed regularly as I do my other trees. I repot every 2 years and healthy white roots fill the pot. I never let the tree dry out and keep it under shade cloth from June onward. In the past it received only morning sun but still get the same results. I don't have this problems with my other trees (except my Japanese maples from time to time). I see photos of other peoples maples and they always look very nice and healthy. Any thoughts as to what could be the problem.
Sincerely,
Dave V.
Sincerely,
Dave V.