Hello!
I currently have a 8 month old cherry blossom sapling that has stopped growing for about 2 months now. I fertilize it once a week, and only water it when the soil is dry at the top. It has a drainage hole at the bottom of the pot. It also seems to be losing its color in its leaves. I believe I saw a spidermite before, so I removed it and rinsed the leaves for a week to discourage them from coming back. I recently moved it outside since I thought it could use better light. It also appears to have teeny tiny black specks on the leaves. They do not rub off or seem to move at all, so I don't think they're bugs. I attached pictures. You might have to look closely to see the black specks.
Please help!