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XCupressocyparis leylandii

Leyland Cypress

XCupressocyparis leylandii (A.B. Jacks. & Dallim.) Dallim.

koo-PRESS-oh-SIGH-per-us   lay-LAND-ee-eye

Conifers - Cupressaceae

Explanation of name: The X before the name indicates that Cupressocyparis is a hybrid genus. See details below. From Wikipedia, specific epithet for: C.J. Leyland, a sea captain who grew some of the first hybrids on his property, Haggerston Castle, in Northumbria, in 1888.

Natural range: An un-natural hybrid (1888) between Monterey Cypress (Cupressus macrocarpa) and Alaska Cedar (Chamaecyparis nootkatensis).

Recognition: Pyramid- or oval-shaped, fine-textured, eventually large (to 50(100)), dense conifer with slightly blue hue. Branches a little pendulous, flattened, the needles scalelike, triangular Cones about in diameter or smaller.

Landscape uses: South Florida is at (beyond) the southern edge of the typical range for this very fast-growing (reportedly to 4/year in the Carolinas) conifer, which is occasionally encountered in South Florida, sometimes as a living Christmas Tree planted outside post-holidays. Leyland Cypress represents a trade-off between rapid growth and a reportedly weakly rooted tendency to topple and short lifespan. Tolerates heavy pruning, but the tree is best when not disfigured.

Internet sources: http://forestry.about.com/od/conifers/p/leyland.htm

http://www.clemson.edu/extension/hgic/pests/plant_pests/trees/hgic2004.html

http://www.clemson.edu/extension/hgic/plants/landscape/trees/hgic1013.html

http://www.bugwood.org/christmas/leylandfact.html

https://pubs.ext.vt.edu/HORT/HORT-18/HORT-18_pdf.pdf

 

Botanical

English

FL Native

Growth Form

Flowering Season

Typical

Dimensions

Suggested Spacing

Cultural Conditions

Problems

XCupresso-

cyparis

leylandii

Leyland Cypress

Exotic

Tree

None

35-50 (100) X 15-25

(Internet sources)

 

SU-PS

ME

WD

AT

(Internet sources)

Fast growth

Does not look "right" in Florida, which is south of its typical range.

Canker

Bagworms

Hurricane susceptible

 

 


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