Juniperus pingii (Ping's Juniper)


Michael's Opinion

Ping’s Juniper is on the International Union for Conservation of Nature, Red List of Threatened Species because of extensive deforestation. At full maturity it is a great specimen plant with attractive blue/grey foliage, slightly weeping branches and brown/grey, exfoliating bark. Direct contact with the foliage may cause skin irritation and rash.

Botanical Information

FamilyCupressaceae
GenusJuniperus
Speciespingii
CategoryWoody
TypeTree (evergreen), Shrub (evergreen)
ReferencesEckenwalder, James E. Conifers of the World: The Complete Reference. Timber Press, 2009. Print. Adams, Robert P. Junipers of the World: The Genus Juniperus: 3rd Edition. Trafford Publishing Company, 2011. Print.
OriginChina.

Details

USDA Hardiness Zone7 - 8
USDA Hardiness Ref.
Canadian Hardiness Zone6b - 8a
Canada Hardiness Ref.
RHS Hardiness ZoneH4 - H6
RHS Hardiness Ref.
Temperature (°C)-18 -(-7)
Temperature (°F)0 - 20
Height4 - 9 m
Spread3 - 5 m
GrowthSlow
Flowering PeriodMarch, April

Description and Growing Information

General DescriptionAn evergreen conifer with small purple-black cones which resemble berries. With a grey-green, scale-like to broad foliage and light brown-grey exfoliating bark.
ID CharacteristicScale-like to broad, needle-like foliage with green undersides and grey-green waxy bloom on the outer faces. Small, shiny, purple-black, fleshy, berry-like cones that are globe to ovoid. It has weathered looking brown-grey bark that exfoliates in small flakes when young and long narrow strips once mature.
ShapeConical to broadly dome-shaped.
LandscapeRarely seen in cultivated landscapes.
PropagationBy softwood cuttings and seed. Cuttings should be taken and rooted in late winter, apply bottom heat and mist to improve rooting. Seed germination rates are extremely low. Seed should be washed, scarified then sown at -3°C for approximately 90 days before gradually increasing temperature to 21°C.
CultivationPlant in full sun, well-drained soil with a pH of 7-5. Drought tolerant once established.
PestsJuniper webworm will build its nests around foliage, causing it to brown and die. Cedar apple rust forms galls, which turn to orange slime in the spring when spores are released. Juniper scale causes foliage to turn yellow and infested branches will not produce new growth.
Notable SpecimensThe Oregon Garden, Conifer Garden, Silverton, Oregon, United States of America.
HabitatWoodlands on mountain slopes.
Bark/Stem DescriptionLight brown/grey giving the bark a weathered appearance. Young bark is thin and exfoliates in small flakes; at maturity bark begins to exfoliate in long, thin strips.
Flower/Leaf Bud DescriptionPale brown colour, ovoid and 4-6 mm long.
Leaf DescriptionGreen to grey-green on the outer face with green undersides. Can vary from scale-like to broad, needle-like in alternating pairs or trios. May cause some skin irritation if contact occurs.
Flower DescriptionPurple-black, 5-9 mm long, held at the tips of small branchlets growing from the leaf axil.
Fruit DescriptionCones are fleshy, containing a hard seed for distribution by birds and other herbivorous animals. These seed cones are a shiny purple/black colour, globose to ovoid and 5-9 mm long. They are solitary and are located at the tips of short branchlets that grow from the leaf axil, taking 2 years to reach maturity. Seeds are brown, 5-7 mm long with a large, pitted abscission scar.
Colour DescriptionBark is a weathered, grey/brown colour. Foliage is green on the undersides with a grey waxy bloom on the outer face giving it a grey/green appearance, and the buds are a pale brown. The fruit is purple/black with a small brown seed held within.
Texture DescriptionMedium texture. The tree gains a slightly rougher texture with age as the bark begins to exfoliate in long, thin strips.

Photographs