Oakleaf Hydrangea...too late to amend soil?
I planted an oakleaf hydrangea (munchkin) in a spot that gets maybe 4 hours of sun a day (mostly morning but some evening, we have an east facing backyard) in between two mature trees, a very large pine of some kind and a birch. I amended the soil when I planted with earthworm castings and bone meal but I didn't add any compost to the soil as it seems pretty rich with all the tree droppings.
I have potting soil and a big bag of compost that I was going to use for one of my raised beds...but do you think the oakleaf could use some more nutrients? I know I'm pushing my luck with only 4 hours, but I've seen some conflicting information about how much shade is too much for oakleafs, so I'm going to try my luck! I'm in zone 8b, the pacific northwest.