sherwindu wrote:
I have replaced 3 Emerald Green Arborvitae from the West side of my
house. They usually last about one year. Just across the
sidewalk from the problem area is
another Arborvitae, getting the same care, which seems to last much
longer. An
arborist looked at the problem and said he suspects bad trees,
since there are yews
and grass growing well, around the tree. This site was occupied
for many years by
a Red Cedar, which was always healthy and was pulled out because of
Apple Cedar
Rust interaction with my fruit trees. My soil has lots of clay
about a foot down, but
I dug a decent hole for it and added mulch to the soil. There are
no signs of insect
infestation, so this problem is really a mystery. The nursery
supplier claims he has given me trees from Canada and Ohio, and I
live in a suburb of Chicago. Even with
our drought, the trees were given careful watering. The tree died
over a one month
period. Any suggestions would be welcome.

Maybe that clay prevented your watering from percolating down and it
drowned.

--

Travis in Shoreline (just North of Seattle) Washington
USDA Zone 8
Sunset Zone 5