• Overview
    Light Needs:
    Full sun
    Watering Needs:
    Water regularly - weekly, or more often in extreme heat.
    Average Landscape Size:
    Quickly reaches 25 to 30 ft. tall, 8 to 10 ft. wide.
    Key Feature:
    Year-Round Interest
    Blooms:
    Conifer; prized for foliage.
  • Detail
    Botanical Pronunciation:THOO-yuh
    Plant type:Conifer
    Deciduous/evergreen:Evergreen
    Sunset climate zones:1 - 9, 15 - 17, 21 - 24, 32 - 45
    Growth rate:Fast
    Average landscape size:Quickly reaches 25 to 30 ft. tall, 8 to 10 ft. wide.
    Foliage color:Green
    Blooms:Conifer; prized for foliage.
    Garden styleContemporary, Rustic
    Design IdeasUniform, conical form makes an excellent disease-free substitute for Leland cypress, particularly in the southeastern U.S.
    Companion PlantsSmoke Tree (Cotinus); Spirea (Spiraea); Rose (Rosa); Hydrangea (Hydrangea); Daylily (Hemerocallis)
  • Care
    Care Information
    Adapts to a wide range of soil types; avoid poorly drained, overly wet sites. Water deeply and regularly during first few growing seasons to establish an extensive root system. Once established, reduce frequency; tolerates drought. Feed with a general purpose fertilizer before new growth begins in spring.
    Light Needs:
    Light needs: Full Sun
    Full sun
    Watering Needs:
    Water needs: Moderate
    Water regularly - weekly, or more often in extreme heat.
  • History & Lore
    History:
    A U.S. National Arboretum Introduction. In 1967, a single plant reputed to be Thuja (standishii x plicata) was received from D.T. Poulsen, Kvistgaard, Denmark, and planted at the U.S. National Arboretum. This plant exhibited exceptional landscape quality and propagations were distributed. In the distribution process, the name and identity of this clone became confused with that of another arborvitae from the same source, T. occidentalis 'Giganteoides'. The identity of the exceptional cloneas the T. (standishii x plicata) hybrid was resolved by Susan Martin, USNA, Kim Trip, New York Botanic Garden, and Robert Marquard, Holden Arboretum, through extensive records searches, nursery inspections, and isozyme analysis. The name Thuja 'Green Giant' was selected to identify and promote this clone.

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