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Evergreen Ash
IntermediateCojoba arborea var. angustifolia
Delicate pinnate leaves with charming nyctinastic movement (closing at night). Bright green foliage creates natural atmosphere.
About
Evergreen ash (Cojoba arborea, formerly Pithecellobium confertum) is an evergreen tree in the family Fabaceae, native to the tropical rainforests of Central and South America. Its finely divided pinnate leaves give it a light, feathery appearance, and the plant is notable for its nyctinastic leaf movements — leaves fold closed each evening and reopen in the morning, adding a captivating sense of life to indoor spaces. It prefers bright indirect light and is highly sensitive to drought; the soil should be watered as soon as the surface dries, as leaf tip browning and defoliation follow quickly from water stress. High humidity is beneficial, and regular misting helps maintain healthy foliage. Fast-growing indoors, reaching 0.5–2 m. Its combination of delicate texture and daily leaf movement makes it a unique and beloved houseplant.
Lifespan of the Evergreen Ash
The Evergreen Ash lives 10+ years.
Size of the Evergreen Ash
The Evergreen Ash grows to 50cm-2m (potted).
Temperature & humidity for the Evergreen Ash
The ideal temperature for the Evergreen Ash is 10〜30℃.
Basic Info
Origin
Central and South America
Lifespan
10+ years
Size
50cm-2m (potted)
Temperature
10〜30℃
Humidity
50〜70%
Growing Tips
Light & Placement
Prefers bright indirect light. It likes humidity, so mist in dry rooms and keep it out of direct air-conditioner drafts.
Watering
Sensitive to drought. Water as soon as surface dries
Temperature & Overwintering
Ideal range is 10-30°C. Keep it indoors above 10°C in winter and never let it dry out, or leaf tips brown and leaves drop.
Pruning & Shaping
It grows fast, reaching 0.5-2 m indoors, so prune overlong branches regularly to keep its shape.
Soil & Repotting
Use a mix that drains yet holds moisture. It grows fast and becomes rootbound quickly, so repot one size up once roots fill the pot.
Pests & Cautions
When dry, leaf tips brown and leaves drop. The leaves folding up at night is normal sleep movement, not a sign of disease.
Evergreen Ash FAQ
QWhat is the growing difficulty level for Evergreen Ash?
Intermediate. A variety suitable for intermediate growers. Requires some cultivation experience and knowledge of environment management. Pay careful attention to temperature and humidity control.
QWhat is the ideal temperature for Evergreen Ash?
The ideal temperature for Evergreen Ash is 10〜30℃. Avoid sudden temperature changes and maintain a stable environment.
QWhat is the lifespan of Evergreen Ash?
The average lifespan of Evergreen Ash is 10+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.
QHow large does Evergreen Ash get?
The mature size of Evergreen Ash is 50cm-2m (potted). This may vary slightly depending on cultivation environment and individual differences.
QWhat is the typical price for Evergreen Ash?
The price of Evergreen Ash varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.
Last updated: June 24, 2026
References & Sources
Edited & verified by: GrowerDirect Editorial Team
The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.
Taxonomy & Authority
Regulations & Conservation Status
Foliage plant. Confirmed by document review to be non-applicable to CITES Appendix (Flora), designated invasive species, or designated animals (the genus does not appear in the CITES flora section; Dracaena spp. listings in CITES refer to a reptile genus of the same name; the plant Dracaena is not applicable).
Sources: CITES Appendices I/II/III (flora section, grepped via dbca mirror) / CITES Appendices (official) / Ministry of the Environment List of Specified Invasive Alien Species
Regulations may change. Always verify the latest information with the relevant authorities.
Related Species
Find listings for this species
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