Psychotria spp.
wild coffees
Pantropical; Americas, Africa, Asia, Pacific
Overview
Psychotria spp. is a very large genus, with well over a thousand species of evergreen shrubs and small trees in the coffee family (Rubiaceae), spread through tropical and subtropical regions worldwide. Most are understorey plants 3-15 ft (0.9-4.6 m) tall, with paired, glossy, oval leaves and prominent leaf veins. Many species carry colonies of symbiotic bacteria in nodules within the leaves. Small tubular flowers, usually white to greenish or cream, are grouped in branched or head-like clusters at the stem tips. The flowers ripen into fleshy berry-like fruits in red, blue-black, white, or orange that are eaten and spread by birds. The genus is found across the Americas, Africa, Asia, and the Pacific, mostly in the shaded understorey of moist forest. Some species contain alkaloids; P. viridis is used in parts of Amazonia as a source of dimethyltryptamine. Most species are frost-tender and need warm, humid, shaded conditions, growing poorly in dry or exposed sites.
Native Range
The genus is pantropical, native across the Americas, sub-Saharan Africa, tropical Asia, and the Pacific islands. Species grow chiefly in the shaded, humid understorey of lowland and montane rainforest.Suggested Uses
Tropical species are grown as understorey shrubs and hedges in frost-free gardens, and several Florida natives such as P. nervosa are used in shaded native plantings for their red fruit and bird value. Compact species are grown as foliage houseplants in containers.How to Identify
Appearance
Size & Dimensions
Height3' - 15'
Width/Spread3' - 10'
Bloom Information
Flowering varies with species and climate and can occur through much of the year in the wet tropics, often peaking in the warm, rainy months. Small white to greenish flowers open in tip clusters and are followed within weeks by colourful fruits. In cooler-margin climates bloom concentrates in the warm season.
Detailed Descriptions
Flower Description
white to greenish or creamFoliage Description
glossy greenGrowing Conditions
Sun Requirements
Requires 2-5 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight
Care & Maintenance
Care Guide
Most species grow in part to full shade and in moist, rich, free-draining forest soils high in organic matter. Warm, humid air and steady moisture suit them, and growth slows or stops in cold or dry conditions. The plants are frost-tender and are grown under glass or as houseplants outside the tropics. Watering is regular, keeping the soil moist but not waterlogged. Light feeding through the growing season supports the glossy foliage. Strong direct sun bleaches and scorches the leaves.Pruning
Stems are tip-pruned after flowering or in spring to keep a bushy shape, as plants branch from below the cut. Older shrubs are thinned of weak and crowded stems to maintain airflow in humid conditions.Pruning Schedule
early spring
Container Growing
✓ Suitable for container growing
Minimum container size: 3 gallons
