Plant of the Month
Grid P31 along the edge of the
gravel road in the Xeriscape Garden
This is one of my favorite plants in the
Arboretum, partly because for some reason it is
essentially unknown in the nursery business. I
am working with Don Regan at the UI's
Franklin H. Pitkin Forest Nursery to remedy
that situation. Don has been able to
successfully propagate the plant and limited
numbers of them will be available at this year’s
Arboretum Plant Sale.
Hardy Manzanita, Arctostaphyllos patula 3-16-15
The USDA website shows this Manzanita as a
native to pretty much every western state
except Idaho. There are more than 50 species
of Manzanita, but most are not hardy enough to
live in Moscow. Besides being a rare hardy
broad leaf evergreen with attractive (although
small) flowers, the most striking feature of the
shrub is the vivid purple bark.
Hardy Manzanita bark 3-16-15
The flowers appear in early spring, along with
the Forsythia and other early bloomers. The
flowers are popular with pollinators. The
plants in the Xeriscape Garden were planted in
the original planting in 2003. One has been
pruned to expose the lower branches, the other
has been left alone. They both have grown into
nicely shaped shrubs about 3' tall and 4' wide.
They have had no supplemental water after the
first year or so.
Although we had a few nights that the
temperature dipped to 20 or less I have not
seen any significant damage to spring
flowering trees or shrubs. I think the damage
that I am seeing was caused by the sudden
change in temperature in November when we
went from very mild temperatures to two
nights below 10 degrees. The most unusual
damage is showing up on Ponderosa Pines all
over the area. As a very hardy local native,
they would normally be the last thing I would
expect to show damage, but in many groups of
Ponderosa Pines I am seeing 2 or 3 trees with
severely burnt needles. I have not seen any
that look damaged badly enough to kill them,
but many will be unsightly until new growth
covers up the burnt areas.
Burnt needles on Ponderosa Pines 3-20-15
Arboretum Associates Annual Meeting
Wednesday, April 8, 2015 7:00 pm
1912 Building, Great Room
Socializing, board elections, and an annual Arboretum report
Arboretum Associates Annual Plant Sale
Saturday, May 30 2015 9:00 am to 12:00 pm
Ice Rink at the Latah County Fairgrounds
Hosta 'Curly Fries'
Beat the rush—this Hosta has been selected as the 'Hosta of the Year 2016'!
Rigid, highly ruffled narrow 5-6” leaves emerge yellow and then lighten to near white.