Last Fall I had transplanted to my lawn nine, 20 foot evergreens. Two appear...
Last Fall I had transplanted to my lawn nine, 20 foot evergreens. Two appear to be dying...with their branches browning (one from the bottom up and the other uniform throughout the tree. The U of M soil test came back: pH @ 7.2; Phosphorus very high @ 96 and Potassium @ 179. Even though we have had great rain, I've continued to water as well. What can I try?
Dakota County Minnesota evergreens
Transplanting trees of the size you mentioned is a major undertaking that carries a significant risk. Some mortality is to be expected.
We can't suggest ways to stem or reverse the decline of the trees that aren't faring well because we don't know what's causing the problem. We recommend asking a certified arborist to assess their condition on site and determine what, if anything, can be done to save them.
How the trees were planted and what was done to prepare them for the move are critical to transplant success. These factors are discussed in the following bulletins.
If the trees were planted by a reliable landscape company there may be a warranty for replacement.
How do I find a certified arborist?
How to hire a professional arborist to help care for your landscape trees