Abies homolepsis (Nikko Fir)


Michael's Opinion

This is a beautiful specimen tree, the pronounced upward facing branches makes it stand out. It is not a very effective windbreak as it has an open form. The white undersides of the leaves and the purple/violet cones add interest to this magnificent species.

Botanical Information

FamilyPinaceae
GenusAbies
Specieshomolepsis
CategoryWoody
TypeTree (evergreen)
OriginOriginated in the mountains of Southern Japan and identified in 1842. Introduced into cultivation in the United States of America in 1861.
Pronunciation

Details

USDA Hardiness Zone5
USDA Hardiness Ref.
Canadian Hardiness Zone6
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-25
Temperature (°F)-20
Height30 m
Spread8 m
GrowthFast
Flowering PeriodMay

Description and Growing Information

General DescriptionBranches at an upward angle to the stem with an open, loose overall form. The undersides of the leaves appear silver, with the tree a deep green.
ID CharacteristicThe underside of the leaf has two white bands, the bark is pink grey in colour and the cones are purplish/violet when young. A very large, fat pyramidal plant that can get up to 8 m wide; fuller and larger than most firs.
ShapePyramidal.
LandscapeAn outstanding specimen tree, with the branches tiered up the trunk of the tree. It is an incredible shape and has beautiful showy foliage. Not suited for wind breaks as it has a loose open form.
PropagationPropagate by seed, which ripens in October. Seed in February, in a greenhouse or outdoors. Germination is typically poor.
CultivationTolerates urban conditions and pollution. Prefers moist well-drained soil, does best in full sun. Wind tolerant but doesn’t like drying winter winds but prefers cool conditions.
PestsOften damaged by deer, does not like highly alkaline soils. No serious insect or disease problems. It is tolerant to pollution when compared to most other Abies species.
Notable SpecimensRoyal Botanical Gardens, Rock Garden Parking Lot (Area 7), Burlington, Ontario, Canada.
HabitatMountains of Japan.
Bark/Stem DescriptionPink-grey bark that peels off in fine flakes. New bark is smooth with resin blisters.
Flower/Leaf Bud DescriptionPale, yellow brown, shinny winter buds, conic or ovid-conic to 3 - 5 mm.
Leaf DescriptionPectinate leaves that are densely arranged, pointing toward the branch tips, 1.5 - 3 cm long. Deep green in colour with two white stripes on the underside of the leaf.
Flower DescriptionMale stobili are ovoid, yellowish-green in colour. Stamen is dark purple, 1.4 cm long by 7 mm wide.
Fruit DescriptionPurple/ violet cones cover the tree, 10 cm long, standing upright on the branches. Often occur in clusters or rows along the branches. Cones are very resinous, turning brown as they ripen.
Colour DescriptionDeep green foliage, with pink-grey bark. The underside of the foliage has white strips making it appear to have a silver tinge.
Texture DescriptionMedium, shiny, leather-like foliage.

Photographs