'Blue Ice' Arizona Cypress |
In
the scorching summer heat, a glance at the cool powdery blue ‘Blue Ice’ Arizona
Cypress (Cupressus arizonica var. glabra ‘Blue Ice’) might give you a brief
respite from the unmerciful temperatures. This fast growing, dense, pyramidal
shaped conifer was selected as one of the “Best Woody Plants of 2007 “by the
University of Tennessee. The University of Arkansas Agricultural Institute
reports var. glabra cultivars are hardier than the species and their striking
powder blue color, rapid growth and high resistance to insects and diseases
make them a good alternative to the overused and disease prone Leyland Cypress
and Redtip Photinea for screening.
As
a specimen plant or for screening, the ‘Blue Ice’ Cypress offers fabulous year
round color. While it grows taller in the southwest Mexico, UT reports it
reaches 15 ft tall and 7 ft. wide. Dark chocolate brown tightly scaled one inch
cones remain on the tree for two years. The closely pressed scales on the
lichen blue, needles appear soft to the touch. Smooth, continuously exfoliating
dark brown outer bark reveals a cinnamon to deep red inner bark.
Plant
the ‘Blue Ice’ Arizona Cypress in elevated well drained sites that gets full
sun. It prefers hot and dry conditions but is cold hardy to -5 degrees F.
(University of Florida). It adapts to a variety of soil types. Water deeply and
regularly during the first few years, but once established its drought tolerant
and often recommended for xeriscaping.
There
are over 30 Cupressus arizonica var. glabra varieties and several seem to be
adapting well to the southeast. Cupressus arizonica var. glabra ‘Limelight’,
was named one of the “Best Plants for 2008” by the West Tennessee Research and Education Center Gardens in Jackson, TN. ‘Blue Ice,’ ‘Blue Pyramid,’ ‘Carolina
Sapphire,’ and ‘Silver Smoke’ are recommended by the University of Arkansas
Agricultural Division. NC State endorses the smaller and more open “Carolina
Sapphire’ for Christmas tree farms as well as for a landscape plant. Many of
the var. glabra cultivars have originated in Australia and New Zealand where
this North American native has become a favorite of landscapers.
--Jan Castillo, MG '05
No comments:
Post a Comment
Comments are moderated and will appear as soon as they are approved.