Thuja plicata
'Whipcord'
Whipcord Arborvitae
"
Barely seen in the average landscape, long scaled foliage takes some getting use to but boasts year round interest; grafted forms appear unkempt and overgrown like a mop atop a short stalk. Grown at ground level in is an unusual accent plant, grown as a standard it is a hideous affair.
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Family |
Cupressaceae |
Genus |
Thuja |
Species |
plicata |
Cultivar |
'Whipcord' |
Category |
Woody |
Type |
Shrub (evergreen) |
USDA Hardiness Zone |
5 - 7a |
Canadian Hardiness Zone |
6 |
RHS Hardiness Zone |
H6 |
Temperature (°C) |
-21 - (-15) |
Temperature (°F) |
-5 - 5 |
Height |
1 – 1.5 m |
Spread |
1 – 1.5 m |
General Description |
Small, mounded shrub is sparse with sprays of long thread-like scaled foliage. |
Landscape |
Can be used in rock gardens, garden border grafted forms may be used as a specimen plant in the landscape. |
Cultivation |
Plant in full sun to partial shade on moist, well-drained soils, growth will be stunted if planted in dry place, pH adaptable. |
Shape |
Mounded and mop-like with sprays of cord-like foliage which radiates upwards from the center and cascades to the ground. |
Growth |
Slow |
ID Characteristic |
Long cord-like scaled foliage, very slow growing, appears low growing and mounded with shoots cascading from the center stalk. Bronze winter colour. |
Pests |
Bagworms and sun scorch can be problematic. Deer resistant. |
Habitat |
Horticultural origin. |
Bark/Stem Description |
Older bark is dark brown-bronze and smooth; younger stems are reddish-brown overlapping, acuminate scales, each with one tiny ‘bubble’ dot. |
Flower/Leaf Bud Description |
Terminal bud is absent. |
Leaf Description |
Sprays of cord-like foliage is appressed, oval-obvate scales appear two ranked. |
Flower Description |
Non-flowering. |
Fruit Description |
Cultivar does not produce fruit. |
Colour Description |
Summer foliage is bright green and darkens in the winter with hints of bronze tones typical of the Thuja genus. |
Texture Description |
Medium |
Propagation |
Fully-ripe cuttings should be taken in December – January when the plant is dormant. Cut 7 - 12 cm from the parent plant, preferably with a “heel” still attached. Remove any leaves on the bottom third of the cutting and place in propagation bench with bottom heat treated with 8,000 ppm of IBA and mist. |