Salal

The signature evergreen groundcover shrub of Pacific Northwest forests - glossy leaves, pink bells, sweet dark berries, and the florist trade's beloved 'lemon leaf,' all on one tough, shade-loving native.

An easy native for acidic soil in part to full shade; slow to establish, then spreads by rhizome into an evergreen groundcover. Best with woodsy, humus-rich soil and steady moisture while young.

Salal is easy where it belongs: acidic, humus-rich soil in part shade to full shade, the conditions of its native conifer forests. It is remarkably adaptable within that - it handles dry shade once established, tolerates poor and rocky ground, and grows denser and shorter in more light, taller and more open in deep shade. Like its heath-family relatives blueberry and rhododendron, it wants acidic soil (pH ~4.5-6) and resents lime and soggy ground.

The main thing to know is that salal is slow to establish - it can sulk for a year or two, putting energy into roots before it takes off. Plant it in fall or spring, mulch with pine needles or bark, keep it watered through the first summers, and then let it run: it spreads by underground rhizomes into an ever-widening colony. Site it where that spread is welcome (as woodland groundcover or an informal hedge), because an established patch is vigorous and can travel into paths and beds if you let it.

Very low care once established - acidic mulch, occasional water in drought, and a hard late-winter cut-back to renew leggy growth. Cut the glossy stems any time as long-lasting greenery.

An established salal patch needs little care. Keep it mulched with an acidic, woodsy mulch, water it in serious summer drought (it is drought-tolerant in shade but appreciates a drink in the driest spells), and otherwise leave it be. It has few pests and diseases in the garden and is not browsed heavily by deer.

The one useful intervention is renewal pruning: over years salal can grow leggy and bare at the base, especially in deep shade. A hard cut-back in late winter - shearing the whole patch low - prompts vigorous fresh resprouting from the rhizomes and restores dense, leafy growth. You can also cut stems of the handsome evergreen foliage at any time for floral greenery; it lasts for weeks in water, which is exactly why it is harvested commercially. If the colony spreads beyond where you want it, simply edge or dig the running rhizomes at the margins.

Pick the berries deep blue-black and soft in late summer - sweet fresh, and traditionally dried into cakes. The evergreen leaves are a separate, year-round cut-foliage 'harvest' for arrangements.

Salal offers two very different harvests. The berries ripen in late summer, turning from green through red to a dusty dark blue-black; pick them fully dark and soft, when they are sweetest. They hang in tidy one-sided rows and strip off easily. The flavor is mealy but genuinely sweet - pleasant fresh by the handful, and outstanding dried, which is how coastal peoples preserved them, pounding them into cakes for winter. They also make good jam, syrup, and baking fruit, often blended with tarter berries like Oregon-grape or huckleberry.

The second harvest is the foliage itself. Cut stems of the glossy evergreen leaves at any season for bouquets, wreaths, and arrangements - this is the 'lemon leaf' of the florist trade, cut by the millions of stems across the Northwest precisely because it stays fresh for weeks in water. For home use, cut mature (not brand-new) stems, condition them in water, and they will outlast most of the flowers you pair them with.

A wholesome native berry rich in fiber and dark-pigment antioxidants, and a heavyweight wildlife food; the leaves have a folk-medicine history as a tea and poultice.

Salal berries are a nutritious native fruit. Like their heath-family relatives the blueberry and huckleberry, they are rich in fiber and anthocyanin antioxidants - the dark blue-black pigment signals the same class of polyphenols linked to the color. Sweet and filling, they were a staple traditional food across the Pacific Northwest, eaten fresh in season and dried in quantity into cakes that stored through winter, sometimes used to sweeten or thicken other foods.

Ecologically salal is a powerhouse. Its spring flowers are an important nectar source for bumblebees and hummingbirds; its heavy late-summer berry crop feeds songbirds, grouse, chipmunks, foxes, and bears; and its dense evergreen cover offers year-round shelter and nesting habitat. The leaves, too, carry a folk-medicine history - a leaf tea and poultice were used traditionally for coughs, digestion, and to soothe skin. So salal feeds people and the whole forest community at once, which is a large part of why it is such a valued native to plant.

A First Foods berry and the plant Lewis and Clark first recorded as 'shallon'; today the Northwest's number-one wild floral green, a multi-million-dollar 'lemon leaf' harvest.

Salal has fed and served Pacific Northwest peoples for thousands of years. Its berries were among the most important traditional fruits of the coast, eaten fresh and dried in great quantity into cakes for winter, and used to sweeten and thicken other foods; the leaves were brewed and used medicinally. The plant's name comes from a Chinook Jargon word, and it entered the botanical record when the Lewis and Clark expedition collected it in 1805-06 near the Columbia, recording it under the name 'shallon' that survives in its species name shallon.

In modern times salal has become an unlikely economic star - not for its fruit but for its foliage. The glossy evergreen leaves, sold as 'lemon leaf' or simply 'salal,' are the backbone of the global cut-flower industry's greenery, harvested from the wild by the millions of stems across Washington, Oregon, and British Columbia in a trade worth many millions of dollars a year. So a humble forest-floor shrub is at once an ancient First Food, a Lewis-and-Clark botanical landmark, and the leafy green behind most of the world's bouquets.

Most 'problems' are its slow start and its spread; poor growth usually means non-acidic soil or too much sun; leggy bare growth is fixed by a hard cut-back.

It sat there and barely grew the first year: normal - salal is famously slow to establish, building roots before it spreads. Keep it watered and mulched and it will take off in year two or three. Yellowing leaves / weak growth: usually soil that is too alkaline (salal needs acidic soil) or too dry and sunny - add acidic mulch, and site it in shade. Leggy, bare at the base: common in deep shade or old patches - shear it hard in late winter and it resprouts dense from the rhizomes. It's spreading where I don't want it: the flip side of its groundcover virtue - edge or dig the running rhizomes at the margins to contain it, or plant it only where spread is welcome. Few berries: too much shade (it fruits better with some light) or a young plant not yet established. Cut foliage wilting fast: you cut brand-new soft stems - use mature, firmed-up stems and condition them in water, and they will last for weeks.

A creature of the mild, wet maritime Northwest (roughly zones 6-9); superb in coastal shade, less happy in hard cold, alkaline soil, or hot dry interior climates without shade and moisture.

Salal is adapted to the mild, moist maritime climate of the Pacific Northwest coast, roughly USDA zones 6-9, and that is where it shines. Coastal zones 7-9 (its home): effortless - it thrives in the cool, humid, acidic shade of conifer forests from Alaska to California, tolerating everything from dripping wet winters to summer drought once established. Zone 6 / colder edges: hardy but slower and more likely to be knocked back by hard freezes; site it with shelter. Interior and hotter, drier climates: more challenging - away from the maritime influence it needs shade, acidic soil, and supplemental water, and it dislikes hot, dry, alkaline conditions and intense sun. It is not a plant for the arid Southwest or the alkaline Midwest. But anywhere with the cool, acidic, shaded, humid conditions of its native range - or a shady, acidic, well-watered garden corner that mimics them - salal is one of the most rewarding and versatile evergreen native shrubs you can grow.