Gaultheria shallon
treeSalal (Gaultheria shallon) is the glossy, leathery-leaved evergreen shrub that carpets the floor of Pacific Northwest forests, 1 to 5 ft tall (taller in deep shade), spreading by rhizomes into dense, handsome thickets. It bears urn-shaped pinkish flowers and then edible blue-black berries that were a major traditional food, dried into cakes by coastal peoples; the thick, durable leaves are also harvested in quantity for the florist trade. Heavily shade-tolerant and content in cool, moist, acid woodland soil, it is grown for its berries and foliage and as a tough, evergreen groundcover for difficult shady, acid sites. It can be slow to establish but then spreads steadily.
Sun
partial shade
Water
Every 7 days
Harvest
~100 days
Difficulty
medium
Lifecycle
perennial
Comes back every year
Spacing
2-4 ft apart (spreads by rhizomes)
Planting Depth
Set root ball at soil line in acid, humusy soil
Soil pH
4.5-6.0
Soil Type
Moist, acidic, humus-rich
Hardiness Zones
Zones 5 – 9
When to Fertilize
Light spring feed with acid-forming fertilizer
Fertilizer
Acidic (ericaceous); low rates
Salal wants cool, moist, acidic, humus-rich soil and deep to partial shade - it is one of the best shrubs for heavy shade under conifers - though it takes more sun where the soil stays moist. Plant in spring or fall, keep it watered and mulched until established (it can sulk for a year before taking off), and then it spreads by underground rhizomes into a dense evergreen mat. It is a Northwest native that may struggle in hot, dry, alkaline climates very different from its home. Once settled it is low-care; trim to keep it in bounds. Ideal beneath cedars and pines.
Direct sow
Apr 29
Projected first harvest
Aug 7
Good neighbors that attract beneficial insects or deter pests
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No serious pests
Salal has no significant insect or disease problems in suitable cool, moist, acid sites
Minor fungal spotting in stagnant damp shade; ensure some airflow
Establishment sulking
Not a pest but common - keep new plants moist and patient through the first year before they spread
Pick the blue-black berries in summer when fully ripe and soft; they are sweet but seedy and a little hairy, eaten fresh or, traditionally, mashed and dried into fruit cakes for storage, or made into jam. Harvest the thick, glossy leaves any time for arrangements or drying. Both berries and leaves come from the same easy, spreading plant, so a established patch supplies plenty without harm. Use or dry the berries promptly, as they do not keep long fresh.
Salal berries are sweet and edible, eaten fresh or cooked into jam and traditionally mashed and dried into storable fruit cakes by Northwest coastal peoples - a significant wild food. The leathery evergreen leaves are gathered in quantity for the florist trade. As a plant, salal is a top-tier evergreen groundcover for deep shade and acid soil, knitting difficult woodland ground into a glossy green carpet.
For educational and informational purposes only — HomeSown is not medical, health, or other professional advice. Always positively identify any plant before handling or eating it; some plants, and some parts of otherwise-edible plants, are toxic. Consult a qualified professional before consuming or otherwise using any plant, especially if you are pregnant, nursing, taking medication, or have a health condition.