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Cass County Extension |
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Evergreen Shrubs |
Creeping Junipers-Low growing spreading evergreen; green to silver-blue in
color. Root when stem touches ground. Juniper blight and spider mites can be a problem.
Cultivars include: Andorra(12-18"; bluish-green color; plum-purple winter color; less desirable type), 'Blue Chip' (8-12"; needs very little pruning;
mounds in center. Steel blue all year), `Blue Prince' (8-10"; intense blue color. New
introduction from Alberta, Canada), `Dunvegan Blue'
(7-10"; bluish-green color), 'Hughes'
(12-24"; dull gray-green all year). Prairie Elegance (8-10"; bright grass
green color. Vigorous), 'Prince of Wales'
(8-10"; medium dark green all year), 'Webber'
(8-10"; blue-green color; dense foliage) and 'Wilton'
(`Blue Rug') is 3-6"and very flat; silver-blue color; purplish winter color. A Rocky
Mt. Juniper selection, Blue Creeper is 1-1 1/2' tall and bright blue in color. Dwarf Japgarden is dense and very prostrate
(8-12") but mounds to 18" with age; medium blue color.
Spreading Junipers
(Chinese-Broad)-Spreading evergreen with horizontal branching and prickly foliage;
green to blue-green to bronze color. Winter breakage problem; mites and winterburn.
Cultivars include: Maney has a horizontal
layered, irregular habit with multiple upright branches; very dull grayish blue color.
Coarse; gets very large; Pfitzer (dark green
in color), 'Seagreen' ('Mint Julep') is bright green
in color, less spiny foliage, rank growth and larger than Pfitzer. `Seagreen Globe' must
be sheared to retain globe shape. Golden Pfitzer is the hardiest of the gold types;
little winter injury). Cultivar of Rocky Mt. Juniper: 'Winter Blue' (2-3'. Silver blue
color; good winter color). Selections of the Common Juniper include: Blueberry Delight with blue-green foliage, 1-1
1/2' tall, partial shade tolerance, good winter color and a showy bluish berry-like fruit
display and Copper Delight has lighter green foliage and a mounded form; coppery
tinge in winter. Fair shade tolerance. Singleseed (Flaky) Junipeer cultivar: `Blue Star' (slow growing; 2-3' mound of steel blue
foliage. Does better in cool temperatures).
Spreading Junipers
(Savin)-Evergreens with upright spreading branches. Green color year around.
Scale-like foliage; soft to the touch. Tolerant of partial shade; spider mites can be a
problem. Cultivars are smaller, more compact, retain good winter color and are more blight
resistant. Cultivars include: 'Arcadia' (bright
green; 30-48", spreading), `Blue Danube' (24-36"; dull bluish green color), 'Broadmoor' (15-24"; mounded with soft
grayish-green foliage), 'Buffalo' (18-30";
bright green color), `Calgary Carpet' (`Mini-Arcade')
12-15"; soft green ground cover-like; discolors a bit in winter), and 'Skandia' (18-30"; green color with a bluish grey
tint).
Russian Cypress-Hardy
densely branched flat spreader; green color turning brownish in winter. Foliage resembles
arborvitae, growth habit similar to Skandia Juniper. Questionable performance in NDSU
trials.
Spreading Yews-Evergreen
with flat, soft, dark green needles; susceptible to
winter desiccation and browning. Sheltered shaded spot; moist well drained soil. Cultivars
include:'Dark Green Spreader' (larger; spreading habit) and 'Taunton'
(slow growing, spreader; good resistance to winter burn; best yew for our area).
Pyramidal forms are not reliably hardy.
Globe Arborvitae-
`Globosa' is globe shaped; bright green foliage. Can get quite large; 6-8'. Minimal
pruning needed to maintain shape. Sheltered spot with good moisture; east or north best.
May winterburn in sun. Other cultivars include: 'Hetz
Midget' (dwarf, 20-36", oval-round shape; foliage in vertical layers), `Little
Elfin' (dwarf globe; 30-48'), `Little Gem' (tufty
informal mound shape; 3'), `Little Giant' (4' globe;
slow growing), `Pygmy Globe' (compact, 2-4'; slow growing), Techny (upright pyramidal; needs pruning to
maintain globe shape), `Woodwardii' (good globe
shape; very similar to `Globosa' but larger), Umbrella
(low mounded form; 3'). Compact yellow or golden-leafed cultivars are usually more subject
to winterburn.
Mugo Pine-Compact, shrubby
pine with 2-3" needles; pruning increases compactness. May becomes open and too large
without pruning. Less susceptible to winter damage than other evergreens. Pine Needle
Scale can be a problem. Tree form listed as Swiss Mountain Pine.
This page was last updated March 2003
| Todd Weinmann, Extension Horticulturist & Master Gardener Coordinator |
| Phone: (701) 241-5707 |
| E-mail: tweinman@ndsuext.nodak.edu |