Coriaria myrtifolia
Coriaria myrtifolia · Coriariaceae
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around coriaria myrtifolia and prepare for winter.
ID card
- Common name
- Coriaria, Peruvian Pepper
- Family
- Coriariaceae
- Foliage
- Deciduous
- Flowering
- Spring (April-May)
- Fruiting
- Black berries in summer-autumn
- Mature size
- 1.5 to 2.5 m in height
- Hardiness
- Mediterranean to mild climate (down to -5 °C)
- Origin
- Mediterranean Basin
Care
Exposure and climate
Coriaria myrtifolia appreciates a sunny to semi-shaded exposure. It prefers regions with mild winters and fears prolonged frost below -5 °C. In continental climates, grow it in a pot so you can protect it indoors during winter.
Soil and drainage
This plant adapts to most well-drained soils, including chalky ones. Avoid excess winter moisture, which causes root rot. Poor to average soil is sufficient; enrichment is not necessary.
Watering
Water regularly during spring and summer growth, without saturating the soil. Once established, the plant tolerates temporary drought. In winter, drastically reduce watering, especially after leaf drop.
Nutrition
A balanced fertilizer application in spring is more than enough. Coriaria myrtifolia is undemanding and thrives even in poor soil. Avoid excess nitrogen, which promotes foliage at the expense of fruiting.
Pruning and shaping
Prune lightly after flowering to maintain a compact, well-branched shape. In late winter, before growth resumes, remove dead or misshapen branches. The plant branches naturally and doesn't require drastic pruning.
Pests and diseases
Coriaria myrtifolia is generally robust. Watch for powdery mildew in case of stagnant humidity and poor air circulation. Mealybugs may occasionally infest the stems; treat with soapy water spray or horticultural oil in winter.
Did you know?
The Coriaria owes its common name to its historical use: its leaves, rich in tannins, were used to tan leather and prepare textile dyes. In the Mediterranean, the fleshy black berries, while decorative, long enjoyed a reputation for local toxicity, hence its cultivation remained ornamental rather than food-related.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.