If you've still got some of it left, sure continue using it but I would not go out and buy more, rather use a dilute mixture 1:100 of the seaweed extract, fish emulsion and molasses this will achieve the same aim at a fraction of the cost. The aim of this is to create the best possible soil environment not just for the growth of tree roots but for the wide range of micro organisms so essential to long term healthy tree growth...as for the emergence of leaves well I'd be hoping very much that you'd see some before the fall.
Good luck Sean.
__________________ Sean  Trees are poems that earth writes upon the sky,
We fell them down and turn them into paper,
That we may record our emptiness.
- Kahlil Gibran
|