Create Your Garden

Astelia ‘Silver Shadow’ (Silver Spear)

Silver Spear 'Silver Shadow'

Astelia 'Silver Shadow', Silver Spear, Evergreen shrub, Silver Foliage plants, Silver Perennials

Adding striking color and form to the garden, Astelia ‘Silver Shadow’ (Silver Spear) is a very ornamental evergreen perennial with long, silver, sword-like leaves, elegantly arched and terminating in a sharp definite point. Usually buried down in the architectural foliage, pale yellowish green flowers are produced on female plants in spring. Not particularly showy, they give way to orange berries in the summer.

Easy to cultivate, Astelia is primarily grown for its decorative foliage and the stunning focal point it creates in the garden. It is an ideal specimen plant for brightening up shady areas and represents an unusual alternative to Phormiums (New Zealand Flax).

  • Adds drama to the garden and grows up to 2-3 ft. high (60-90 cm) and 3-4 ft. wide (90-120 cm).
  • Easily grown in fertile, moist, well-drained soils in full sun to part shade. Prefers soil that doesn’t dry out too much during the growing season. Can be grown in sun, though prefer partial shade. Provide a sheltered location. The foliage can be damaged by frost and prevailing cold winds. May need winter protection. Salt and drought tolerant.
  • Deer and rabbit resistant
  • Adding structure and silver color, Astelia is a great choice for beds and borders, city gardens, coastal gardens or Mediterranean gardens.  They look incredible when mixed with Salvias, Eryngium, Perovskia, and Lavender. Excellent as a container plant too! 
  • Virtually pest and disease free.
  • Propagate by seed, sow seeds in containers in a cold frame as soon as ripe. Divide in spring if necessary.
  • Remove or trim winter-damaged foliage in spring

Reminiscent of stemless Cordyline or Phormium, Astelia are clump-forming perennials most native to New Zealand. There are around 25 species of Astelia, the most widely available being Astelia chathamica or ‘Silver Spear’, which forms large clumps of long, arching, silver sword-like leaves; and Astelia nervosa, which forms tighter clumps and has narrower leaves with a metallic sheen. 

 

    Requirements

    Hardiness 8 - 9
    Heat Zones 8 - 9
    Climate Zones 5, 6, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
    Plant Type Perennials
    Plant Family Asteliaceae
    Exposure Full Sun, Partial Sun
    Season of Interest Spring (Early, Mid, Late)
    Summer (Early, Mid, Late)
    Fall
    Winter
    Height 2' - 3'
    (60cm - 90cm)
    Spread 3' - 4'
    (90cm - 120cm)
    Spacing 36" - 48"
    (90cm - 120cm)
    Maintenance Low
    Water Needs Average
    Soil Type Clay, Loam, Sand
    Soil pH Acid, Alkaline, Neutral
    Soil Drainage Moist but Well-Drained
    Characteristics Showy, Evergreen
    Tolerance Drought, Deer, Salt, Rabbit
    Attracts Birds
    Garden Uses Beds And Borders, Patio And Containers
    Garden Styles Mediterranean Garden, Coastal Garden, City and Courtyard, Informal and Cottage
    How Many Plants
    Do I Need?

    Recommended Companion Plants

    Berberis thunbergii ‘Atropurpurea Nana’ (Japanese Barberry)
    Verbascum chaixii ‘Album’ (Nettle-Leaved Mullein)
    Eryngium giganteum (Miss Willmott’s Ghost)
    Geranium x magnificum (Purple Cranesbill)
    Stipa tenuissima (Mexican Feather Grass)
    Perovskia atriplicifolia (Russian Sage)

    Find In One of Our Guides or Gardens

    A Beautiful Fall Border Idea with Dahlias, Verbena and Grasses
    While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
    Buy Plants

    Requirements

    Hardiness 8 - 9
    Heat Zones 8 - 9
    Climate Zones 5, 6, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
    Plant Type Perennials
    Plant Family Asteliaceae
    Exposure Full Sun, Partial Sun
    Season of Interest Spring (Early, Mid, Late)
    Summer (Early, Mid, Late)
    Fall
    Winter
    Height 2' - 3'
    (60cm - 90cm)
    Spread 3' - 4'
    (90cm - 120cm)
    Spacing 36" - 48"
    (90cm - 120cm)
    Maintenance Low
    Water Needs Average
    Soil Type Clay, Loam, Sand
    Soil pH Acid, Alkaline, Neutral
    Soil Drainage Moist but Well-Drained
    Characteristics Showy, Evergreen
    Tolerance Drought, Deer, Salt, Rabbit
    Attracts Birds
    Garden Uses Beds And Borders, Patio And Containers
    Garden Styles Mediterranean Garden, Coastal Garden, City and Courtyard, Informal and Cottage
    How Many Plants
    Do I Need?

    Gardening Ideas

    Plant Calculator

    How many Astelia ‘Silver Shadow’ (Silver Spear) do I need for my garden?

    Input your garden space dimensions

    Your Shopping List

    Plant Quantity
    Astelia ‘Silver Shadow’ (Silver Spear) N/A Buy Plants

    Please Login to Proceed

    You Have Reached The Free Limit, Please Subscribe to Proceed

    Subscribe to Gardenia

    To create additional collections, you must be a paid member of Gardenia
    • Add as many plants as you wish
    • Create and save up to 25 garden collections
    Become a Member

    Plant Added Successfully

    You have Reached Your Limit

    To add more plants, you must be a paid member of our site Become a Member

    Update Your Credit
    Card Information

    Cancel

    Create a New Collection

    Sign Up to Our Newsletter

      You have been subscribed successfully

      Join Gardenia.net

      Create a membership account to save your garden designs and to view them on any device.

      Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

      Join now and start creating your dream garden!

      Join Gardenia.net

      Create a membership account to save your garden designs and to view them on any device.

      Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

      Join now and start creating your dream garden!

      Find your Hardiness Zone

      Find your Heat Zone

      Find your Climate Zone