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Ulmus

Common Name(s):

Description

Elm trees are believed to have originated in Asia 20 million years ago and have spread over most of the Northern Hemisphere of North America and Eurasia. Unfortunately, the Dutch Elm Disease has devastated many of these stately trees in N. America and Europe. Cultivars are being developed that are resistant to the disease.

They can grow quite large with a vase shape and rounded top. Most prefer moist well-drained soils.

 

VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens.

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Cultivars / Varieties:
Ulmus alata, Ulmus americana, Ulmus davidiana var. japonica 'Emerald Sunshine', Ulmus glabra, Ulmus glabra 'Horizontalis', Ulmus 'Homestead', Ulmus minor, Ulmus parvifolia, Ulmus pumila, Ulmus rubra, Ulmus x 'Cathedral', Ulmus x hollandica 'Jacqueline Hillier'
Tags:
#tree#deciduous tree#tsc-t#diseases
 
Cultivars / Varieties:
Ulmus alata, Ulmus americana, Ulmus davidiana var. japonica 'Emerald Sunshine', Ulmus glabra, Ulmus glabra 'Horizontalis', Ulmus 'Homestead', Ulmus minor, Ulmus parvifolia, Ulmus pumila, Ulmus rubra, Ulmus x 'Cathedral', Ulmus x hollandica 'Jacqueline Hillier'
Tags:
#tree#deciduous tree#tsc-t#diseases
  • Attributes:
    Genus:
    Ulmus
    Family:
    ‎Ulmaceae
    Life Cycle:
    Woody
    Recommended Propagation Strategy:
    Seed
    Stem Cutting
    Country Or Region Of Origin:
    Eurasia to Indo-China, Africa, and N. America
    Dimensions:
    Height: 60 ft. 0 in. - 100 ft. 0 in.
    Width: 40 ft. 0 in. - 80 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Perennial
    Tree
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Semi-evergreen
    Habit/Form:
    Arching
    Erect
    Rounded
    Vase
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Good Drainage
    Moist
    Available Space To Plant:
    more than 60 feet
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    3a, 3b, 4a, 4b, 5b, 5a, 6a, 6b, 7a, 7b, 8a, 8b, 9b, 9a
  • Fruit:
    Fruit Color:
    Green
    Display/Harvest Time:
    Fall
    Spring
    Summer
    Fruit Type:
    Samara
    Fruit Description:
    Flat samaras come to a notched/ retuse apex. Some samaras have hair around them and are seen in the spring or summer. Generally, the ones without hairs are seen in the fall instead.
  • Flowers:
    Flower Color:
    Green
    Flower Inflorescence:
    Insignificant
    Flower Bloom Time:
    Spring
    Flower Description:
    Inconspicuous small green flowers in spring.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Semi-evergreen
    Leaf Color:
    Green
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Oblong
    Obovate
    Leaf Margin:
    Doubly Serrate
    Serrate
    Hairs Present:
    No
    Leaf Length:
    3-6 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    The leaves are alternate, with simple, single or most commonly, doubly serrate margins, usually asymmetric at the base and acuminate at the apex. Non-showy fall color.
  • Bark:
    Bark Color:
    Dark Brown
    Dark Gray
    Green
    Light Brown
    Light Gray
    Orange
    Red/Burgundy
    Surface/Attachment:
    Exfoliating
    Patchy
    Ridges
    Bark Description:
    Bark gray, brown, or olive to reddish, tan, or orange, deeply furrowed, sometimes with plates (smooth when young)
  • Stem:
    Stem Color:
    Brown/Copper
    Stem Is Aromatic:
    No
    Stem Form:
    Zig Zags
    Stem Description:
    Stems brown and sometimes with corky wings. Twigs are glabrous to pubescent.
  • Landscape:
    Problems:
    Frequent Disease Problems