Sicilian Sumac plant

Sicilian Sumac

Rhus coriaria

Updated Sep 15, 2026

Sicilian Sumac (Rhus coriaria), also known as Tanner's Sumac, is a deciduous Mediterranean shrub valued for velvety compound leaves, upright red fruit clusters, and vivid fall color. Its dried fruit is ground into the tangy sumac spice used in many Mediterranean and Middle Eastern dishes.

About Sicilian Sumac

Sicilian Sumac is a deciduous shrub or small tree in the cashew family. Its natural range extends from the Mediterranean region and Macaronesia into western and central Asia. It is well adapted to open, sunny terrain where summers become hot and dry.

The plant commonly develops several trunks and a broad, spreading outline. Long compound leaves are divided into toothed leaflets, giving the canopy a light texture. The foliage is green through the main growing season and can turn brilliant red before falling in autumn. Young stems and parts of the leaves have a softly hairy surface.

Small, pale flowers appear in upright clusters and attract pollinating insects. The fruits mature in dense, cone-shaped heads, with each small drupe covered by a reddish, velvety surface. Once dried and ground, the fruit becomes a tart culinary spice. This combination of seasonal color, architectural form, and useful fruit gives the plant both ornamental and practical value.

How to Care for Sicilian Sumac

Watering

Water newly planted Sicilian Sumac deeply whenever the surrounding soil begins to dry. Thorough watering encourages roots to spread beyond the original root ball. Continue checking the root zone during the first growing season, especially through extended periods without rain.

Once established, the plant has a low water requirement and usually needs supplemental irrigation only during prolonged drought. Allow the soil to dry somewhat between waterings rather than keeping it constantly moist. Reduce watering as growth slows and the leaves begin to fall.

Sunlight

A position in full sun supports dense growth, strong autumn color, and good fruit development. Choose an open site that receives at least six hours of direct sunlight on most days during the growing season.

Light shade may be tolerated, but heavier shade can produce a looser canopy and fewer fruit clusters. A south- or west-facing position suits the plant where nearby trees or structures do not block most of the daylight.

Temperature

Sicilian Sumac is adapted to climates with warm, dry summers. Active growth is comfortable at approximately 64–77°F (18–25°C), although this is not a strict limit and established plants can experience warmer conditions.

The plant becomes dormant after losing its leaves. It performs most reliably where winters are not persistently severe. Late frost may damage tender spring shoots, so a sheltered site is useful in frost-prone areas.

Humidity

Low humidity suits Sicilian Sumac well. Its natural growing conditions are generally open and dry, and the shrub does not require misting or increased atmospheric moisture. Leave enough room around the canopy for air and sunlight to reach the interior branches.

Soil

Well-draining soil is more important than high fertility. Sicilian Sumac can grow in sandy, loamy, rocky, or relatively lean ground as long as excess water moves away from the roots. It accepts mildly acidic, neutral, and mildly alkaline conditions.

After rain or irrigation, the soil should become evenly moist without remaining saturated for days. A slope, raised planting area, or naturally gritty site is suitable where the surrounding ground is heavy. Avoid low spots where winter rain collects, and loosen a broad area when planting in dense clay.

Planting & Spacing

Plant in spring after the main risk of hard frost has passed, or in fall where winters are mild. Set the root crown level with the surrounding soil, water thoroughly, and apply a light layer of mulch without covering the base of the stems.

Allow room for a mature height and spread of roughly 10 feet (3 m). New stems may emerge from the root system and gradually widen the planting. Place the shrub where this natural expansion will not crowd narrow paths, paving, or small neighboring plants.

Feeding

Sicilian Sumac generally needs little supplemental fertilizer. A light spring application of a balanced fertilizer is sufficient in poor soil, while plants making healthy growth may need none. Heavy feeding can produce long, soft shoots and an uneven shape.

Pruning & Growth Control

The plant can remain a broad, multi-stemmed shrub or be trained into a more defined small tree. Prune while dormant to remove dead, damaged, crowded, or poorly positioned branches. For a tree-like form, retain a few strong trunks and remove competing stems gradually.

Regular shearing is unnecessary. To reduce size, shorten selected stems back to a lower branch instead of cutting the whole canopy to one level. Remove unwanted root suckers close to their point of origin before they become woody. A position protected from the strongest winds also helps safeguard the plant's somewhat brittle branches.

Flowering, Fruit & Harvest

Flower clusters develop near the ends of the branches and are followed by upright groups of small drupes. Fruit production and ripening vary with sunlight, climate, and the individual plant. Strong sun helps the clusters develop their characteristic red to rust-red color.

For culinary use, gather fully colored clusters on a dry day and discard damaged or discolored material. Dry the fruit thoroughly before separating and grinding the tart outer coating. Positive identification is essential before anything is eaten. Harvest only from a correctly identified plant grown in a clean location without treatments unsuitable for food crops.

Propagation

Rooted suckers provide a straightforward way to produce another plant with the same characteristics. Separate a well-rooted shoot while the plant is dormant and replant it promptly at its previous depth. Semi-ripe stem cuttings and root cuttings are also possible.

Seed can be sown, but its hard coat may delay germination and the resulting plants will not be exact copies of a selected parent. A sucker or cutting is more dependable when fruit quality, autumn color, or growth habit matters.