Q.My Willow Had Poison Ivy Growing Through It. After Removal Do I Need To Fertilize The Tree?
The ivy was there when I bought the he house and really took over the tree. I killed the ivy and removed a lot of it. The tree appears stressed and weak. Several dead branches.
Certified GKH Gardening Expert
I do not think that you should fertilize the tree under stress. A good layer of compost around the tree may help as it breaks down more slowly. I also don't think that the ivy caused any that kind of damage.
I notice that your soils are compact clay. This will create a problem for many trees, preventing them from absorbing nutrients as well as they could be. Willows prefer well draining but moist soil. Over time, adding compost to the area will loosen up the soil. A fungicide wouldn't hurt, either. I can't see the leaves very well, but there could be infections setting in.
https://www.gardeningknowhow.com/ornamental/trees/willow/grow-a-willow-tree.htm
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
