Chamaecyparis lawsoniana 'Lutea' (Yellow Lawson's Cypress)


Botanical Information

FamilyCupressaceae
GenusChamaecyparis
Specieslawsoniana
Cultivar'Lutea'
CategoryWoody
TypeTree (evergreen)
References
Pronunciation

Details

USDA Hardiness Zone5 - 7
USDA Hardiness Ref.
Canadian Hardiness Zone4a - 6b
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-29
Temperature (°F)-15
Height12 - 30 m
Spread2 - 4 m
GrowthMedium
Flowering PeriodMay

Description and Growing Information

General DescriptionIt is a medium sized tree with drooping yellow tipped foliage and pyramidal to columnar shape.
ID CharacteristicNarrowly ovoid, drooping yellow tipped foliage with an indistinct white line on the undersurface.
ShapeThe shape of this tree is pyramidal, columnar, narrowly ovoid with drooping tips.
LandscapeThis plant can be used as a specimen tree, hedging, screening, or in a low maintenance garden.
PropagationPropagation by cuttings taken in October placed in half sand and half peat moss media have a 90% success rate. It may also be grafted to the understock of a Chamaecyparis lawsoniana.
CultivationThis tree should be planted in full sun with moist but well-drained slightly acidic soil. It can also tolerate drought conditions but its growth will be much slower. If used for hedging, two prunings per growing season are required.
PestsPhytophthora lateralis, which is a type of root rot that will kill the tree quickly, and aphids which can cause tip die back.
Notable SpecimensThe University of Nottingham, United Kingdom. The University of Oregon, Oregon, U.S.A.
Bark/Stem DescriptionThe bark is silvery-brown to reddish-brown and it takes on a rough appearance as the plant ages.
Flower/Leaf Bud DescriptionThe buds are 2–4 mm in size, slightly conical, and brown in colour. Chamaecyparis does not bud on old wood.
Leaf DescriptionThe foliage is closely pressed, opposite pairs with white marking on the undersurface. The lateral pair is keel-shaped 1.5–3 mm long, often glandular pitted with long or short spreading points.
Flower DescriptionThe flowers are monoecious, the staminate is pink to crimson and the pistillate are steely-blue.
Fruit DescriptionThe cones are globose, 8 mm wide, bluish-green turning to a reddish brown. Michael Dirr says “This cone resembles a soccer ball”.
Colour DescriptionThe leaflets are glaucous green to light green and have yellow tips that persist all year round.
Texture DescriptionIt is a medium textured tree.

Photographs