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Keywords: salt-tolerant plants, Shrubs, Seaside gardening, Perennials

PAL Question:

I need plant suggestions for growing in cold, salty winds only 15 to 20 feet from the high water mark of the Georgia Straits. In winter, the salt water from the ocean occasionally douses the area where I will be gardening. I'm particularly interested in perennials and small shrubs.

View Answer:

I found a list from Island County, WA with revisions added for Bay Area gardeners.
Excerpts:
"Some of the better salt-tolerant shrubs and small trees to consider include Salal (Gautheria shallon), Ocean Spray (Holodiscus discolor), Snowberry (Symphoricarpos albus), Elderberry (Sambucus species), Tall Oregon grape (Mahonia aquifolium), Serviceberry (Amelanchier alnifolia), Nootka Rose (Rosa nutkana), and the Wax Myrtle (Myrica [now called Morella] californica).

There are a variety of native plants that are commonly found near the shoreline, and which typically do well in the Puget Sound area. These include the sword fern (Polystichum munitum), Bracken fern (Pteridium aquilimum), Fireweed (Epilobium angustifolium), Coastal lupine (Lupinus littoralis), Honeysuckle (Lonicera species), and Coastal strawberry (Fragaria chiloensis)."

Washington Native Plant Society also has a list of plants for a saltwater setting.

I recently answered a question about salt-tolerant grasses which may be helpful to you as well.

The book cited in the answer above, Frances Tenenbaum's Gardening at the Shore, also lists shrubs and perennials. Below are those which might work in zone 8 or lower, and which are smaller than 20 feet.
Shrubs:

  • Acca (also called Feijoa) sellowiana (8-12 feet)
  • Amelanchier (small tree/large shrub)
  • Arbutus (there are some smaller species than the familiar Pacific madrone)
  • Arctostaphylos patula (6 feet)
  • Arctostaphylos uva-ursi (ground cover)
  • Atriplex canescens (3-5 feet)
  • Baccharis halimifolia (6-10 feet)
  • Calluna vulgaris (from 6 inches to 2 feet)
  • Caryopteris x clandonensis (2-3 feet)
  • Ceanothus (many varieties of different sizes, from ground cover to 20 feet)
  • Chamaecyparis lawsoniana (look for a dwarf variety of this tree)
  • Clethra alnifolia (8 feet)
  • Gaultheria shallon (ground cover)
  • Hydrangea macrophylla (6-8 feet)
  • Juniperus virginiana (look for creeping juniper cultivars like 'Bar Harbor' and 'Blue Rug' which are salt-tolerant)
  • Picea glauca (look for dwarf cultivars like 'Arneson's Blue')
  • Rhus typhina
  • Rosa rugosa
  • Rosmarinus officinalis
  • Syringa vulgaris
  • Vaccinium corymbosum (highbush blueberry)
  • Viburnum (numerous species of different sizes)

Perennials:

  • Achillea
  • Armeria maritima
  • Artemisia 'Powis Castle'
  • Artemisia schmidtiana
  • Asclepias tuberosa
  • Baptisia australis
  • Echinacea purpurea
  • Hemerocallis 'Stella d'Oro'
  • Nepeta x faassenii and Nepeta 'Six Hills Giant'
  • Perovskia atriplicifolia
  • Platycodon grandiflorus
  • Sedum 'Autumn Joy'

Season All Season
Date 2010-05-28
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Keywords: Seed dormancy, Propagation, Shrubs, Seeds, Perennials, Herbs, Grasses, Ferns

Garden Tool: A book by Jekka McVicar called Seeds: the ultimate guide to growing successfully from seed (Lyons Press, 2003, $22.95) will help you turn your seedy hopes into plant reality. Thirteen chapters are divided by types of plant including ferns, grasses, shrubs, perennials and herbs. The practical information that applies to all kinds of seeds, such as what type of soil to use, and how to break seed dormancy, is included in the last chapter. Color photos illustrate throughout. For online tips for seed starting go to:
http://cru.cahe.wsu.edu/CEPublications/pnw0170/pnw0170.pdf from Oregon State University.

Season: All Season
Date: 2006-03-01
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June 24 2013 12:55:25