Berberidopsis corallina aka Coralplant

Berberidopsis corallina is an evergreen climbing shrub from Chile. Kew places its native range in south-central and southern Chile. It belongs to the family Berberidopsidaceae. Gardeners also call it coral barberry or coralberry. In the wild, it grows in deep, damp woodland ravines. These sites lie within Chile’s coastal belt. Its woody stems twine as the plant climbs.

In gardens, it reaches 13–26 feet [4–8 metres] tall. Its spread is much narrower, at 1.6–3.3 feet [0.5–1 metre]. The RHS gives two to five years to reach maturity. Dark green leaves stay on the plant year-round. Their edges bear small spines. Rounded, deep red flowers hang in clusters among the leaves. They appear in summer and continue into autumn. The evergreen foliage and hanging blooms give it value on sheltered walls.

Choose a sheltered site with protection from cold winds. The RHS recommends a north-facing wall for this climber. A west-facing site is another listed option. It grows in partial shade or full shade. Plants For A Future suggests woodland edges and dappled shade. That source does not recommend deep shade. Give it fertile, acidic soil that drains well. Sandy soil suits it, and the RHS also lists loam. Its native ravine habitat points to a plant of damp woodland sites.

The RHS rates its hardiness as H4. This covers minimum temperatures of 14–23°F [-10 to -5°C]. Even so, winter frost can damage the plant. Cold winds also pose a risk in exposed sites. Plants For A Future lists USDA zones 7–10. Sheltered courtyards and informal gardens are among its suggested settings. The RHS also lists conservatories and greenhouses as possible locations. Site choice matters because hardiness does not prevent all frost damage.

This climber needs no routine pruning. When needed, prune in spring once frost risk has passed. Remove dead or weak stems at their base. Avoid hard pruning, since the plant regrows poorly after severe cuts. Raise new plants from seed, softwood cuttings, or layering. The RHS reports few usual pest or disease problems. Flexible stems have a use in basket making. Plants For A Future records no known food or medicinal uses. It also lists no known hazards. That does not establish that any part is safe to eat.