On Jul 7, 9:25*pm, Richard Evans wrote:
A couple of weeks ago I bought a small mugho pine intending to keep it
in a pot on my deck. I potted it with Miracle Gro potting soil, and it
has been steadily turning brown ever since. It's on a south-facing
deck, along with my container garden, and gets plenty of sun and
regular watering. Today I got some Miracle Gro for azaleas and other
acid-loving plants on the hunch that maybe the potting soil wasn't
acidic enough.

Any other ideas?

Define regular watering? Turning brown can be a sign you are over
watering it, or perhaps the drain holes are plugged and it is
drowning. I killed one Dwarf Alberta Spruce because I did not know
the drain holes were plugged. It took less than a week of heavy rain
a few years ago to kill it.

We have a dwarf Alberta Spruce that I repotted because it was root
bound and it is still struggling. Two we have in the ground are doing
well. I may have to find a sunny place in the yard and get it out of
the pot. The problem is we are running out of sunny places in the
yard to replant such things. I may take it to SC and see how it will
live down there.