Algerian Ivy

Hedera algeriensis is native to the mountainous regions of North Africa — specifically the coastal and inland mountains of Algeria and Tunisia, where it grows in moist, shaded ravines and on north-facing cliffs.

• Also known as Canary Island Ivy, though the Canary Islands form is sometimes classified as a separate species or subspecies
• The species name algeriensis means "from Algeria"
• Introduced to European horticulture in the early 19th century during the period of French colonization of North Africa
• The famous variegated cultivar "Gloire de Marengo" was named after the Battle of Marengo (1800) — one of Napoleon's greatest victories, fought in northern Italy
• Widely planted in the Mediterranean region, California, Australia, and other mild-climate areas as a large-scale ground cover and wall vine
• Has naturalized in some regions outside its native range, including parts of California, the UK, and Australia
• The genus Hedera contains approximately 12–15 species of evergreen climbing ivies native to Europe, Asia, and North Africa
• Ivy has been a symbol of fidelity and eternal life in European cultures since ancient Greek and Roman times
• Unlike common English Ivy (H. helix), which has smaller, more finely cut leaves, Algerian Ivy is selected for its bold, large-leaved, tropical appearance

Algerian Ivy is a large, vigorous evergreen woody vine climbing by aerial rootlets to heights of 10–20 m on walls, trees, and cliffs, or spreading 3–5 m as a ground cover.

Stems: Stout, woody, producing dense clusters of short aerial rootlets along the stems that adhere to rough surfaces. Mature flowering stems lose their climbing rootlets and grow outward from the support. Stems can reach 10–15 cm in diameter on old plants.

Leaves: Bold and distinctive — large, leathery, glossy dark green, 10–20 cm long and 8–15 cm wide, with 3 (sometimes 5) broad, triangular lobes and entire margins. Leaves on climbing (juvenile) stems are distinctly lobed; leaves on flowering (adult) stems are unlobed, ovate, and smaller. The cultivar "Gloire de Marengo" has striking gray-green leaves with broad, irregular white to creamy-white margins.

Flowers: Small, yellowish-green, 5-petaled, produced in rounded, terminal umbels 3–5 cm wide on adult (non-climbing) branches in fall. Individually inconspicuous but the nectar-rich flower clusters are valuable for late-season pollinators.

Fruit: Round berries 6–8 mm in diameter, initially green ripening to black, produced in winter. TOXIC if ingested — contain saponins. Berries are eaten by birds, which disperse the seeds.

Roots: Extensive aerial rootlet system for climbing. Ground-level roots are fibrous and deep.

Algerian Ivy grows naturally in the moist, shaded ravines and north-facing cliffs of the mountains of Algeria and Tunisia, where it climbs rock faces and tree trunks in cool, humid microclimates.

• Thrives in partial to full shade — the large leaves are adapted to low-light forest conditions
• More heat-tolerant than English Ivy (H. helix) — performs better in warm, dry climates
• Tolerates a wide range of soil types including clay, sand, and limestone
• Moderately drought-tolerant once established due to its deep root system
• The aerial rootlets allow it to climb virtually any rough surface — brick, stone, concrete, tree bark
• Provides year-round shelter and nesting habitat for birds
• Late fall flowers are a critical nectar source for bees, wasps, and flies when few other plants are blooming
• Winter berries provide food for birds including thrushes, blackbirds, and starlings
• Can become invasive in favorable climates — spreads by bird-dispersed seeds and vegetative growth
• Monitor and control spread to prevent escape into natural areas

Algerian Ivy is planted primarily as a large-scale wall cover or ground cover in mild climates. It requires less support than most vines.

Site Selection: Partial shade to full shade. Tolerates sun in cool, coastal climates but leaves may scorch in hot sun. Plant at the base of walls, fences, or on steep banks for ground cover.

Soil: Any soil type. Tolerates clay, sand, alkaline, and poor soils. pH 5.5–8.0. Prefers moist, well-drained conditions.

Planting: Plant container-grown plants in spring or fall. Space 60–100 cm apart for ground cover, 1–2 m apart for wall coverage. Water during establishment.

Watering: Drought-tolerant once established. Water during the first growing season. Supplemental watering in extreme drought.

Pruning: Prune any time to control spread and keep growth away from windows, gutters, and rooflines. Can be cut back hard to rejuvenate. Remove adult (flowering) stems to prevent berry formation and self-seeding.

Ground Cover Use: Plant 60–75 cm apart on steep banks or under trees where grass won't grow. Mow or edge annually to control spread.

Wall Caution: Aerial rootlets can damage old, crumbling mortar and paint — avoid planting on deteriorating surfaces.

Hardiness: USDA Zones 7–11. May suffer foliar damage below -10°C but usually regrows from the base.

Propagation: Very easy from semi-hardwood cuttings taken any time of year.