A bold and sculptural houseplant with thick, leathery leaves and a slow-growing, upright habit, Clusia rosea, or the Autograph Tree, gets its nickname from the waxy foliage that can be gently inscribed with a name or message. Native to tropical coastal regions, it’s surprisingly adaptable indoors and adds a modern, architectural feel to any space. Low-maintenance and drought-tolerant once established, it’s perfect for those who love strong shapes and easy care.
Scientific Name
Clusia rosea (Clusia = named after 16th-century botanist Carolus Clusius; rosea = Latin for “rosy,” referencing its pinkish flowers)
Synonyms
Sometimes listed as Clusia major, though Clusia rosea is the accepted name.
Common Name
Autograph Tree, Pitch Apple, Balsam Apple
Origin
Native to the Caribbean, including the Bahamas, Cuba, Puerto Rico, and parts of Central America. Grows naturally in coastal forests and mangroves, often as an epiphyte or on rocky soil.
Light
Prefers bright, indirect light but can tolerate some direct sun. Too little light may lead to leggy growth or slow development. Ideal for bright rooms or sunrooms.
Water
Water when the top 3–5 cm of soil is dry. In summer, this may be once a week; less frequently in winter. It prefers to dry out slightly between waterings and is tolerant of occasional drought.
Humidity
Tolerates average household humidity well, but appreciates a light mist or proximity to other plants in very dry conditions.
Soil
Use a well-draining houseplant mix with added sand or perlite for aeration. Clusia is prone to root rot if left sitting in water, so drainage is key.
Food
Feed every 4–6 weeks in spring and summer with a balanced liquid fertiliser. Reduce feeding in autumn and winter.
Temperature
Thrives in 18–26°C. Avoid temperatures below 13°C and keep away from cold draughts.
Pet-safe
No – toxic if ingested by pets or humans.
Sprouts Top Tips
To keep your Clusia compact and bushy, pinch out the growing tips in spring. Its slow growth and strong form make it ideal for minimal or contemporary interiors.
