So this mango tree is about 4 weeks old. 4-3 days ago it grew two new leaves but only one of them are growing, now there is just s giant stub where the leaf show have grown. I know leaves being different sizes is normal but this one is too small. Is Iate growth of leaves normal? The first four leaves of the tree grew all at once.I keep it inside near a window. Yesterday I put it outside all day and night in the harsh California sun thinking it could handle it, was the okay?