|Last fall I planted 5 virburnum tinus "Robustum" (5 gal size) in the north (very shady) section of my yard. They are planted beneath tall cedars that I limbed way up to reduce the shade. I am tying to achieve a dense hedge like shrub border to provide privacy from neighbors. They seemed to be doing well this spring-there was new growth and they did flower. I fertilized with an all purpose organic fertilizer following directions on the package in the spring. About 6 weeks ago, I noticed that the leaves at the base of the plants are drying up and turning yellow. A week later, the shrivelling seemed to be progressing up from the base. When I called the nursery where I purchased the plants, they thought I might be overwatering, so I stopped the once per week deep soak about 5 weeks ago. The plants still look distressed. Could the problem be too much shade?