Tree Roofleek, Tree Aeonium
Aeonium arboreum
Aeonium arboreum, commonly known as Tree Roofleek or Tree Aeonium, is a striking succulent native to the Canary Islands. Its unique rosette form and tree-like structure make it a popular choice for both indoor and outdoor gardens.
Everything it needs
9 essentials at a glance
Watering
Aeonium arboreum prefers to dry out between waterings, typically requiring water every 2-3 weeks during the growing season (spring and summer) and less frequently in fall and winter.
Water thoroughly until excess drains from the bottom, ensuring the soil is completely dry before the next watering. Signs of over-watering include yellowing leaves and mushy stems, while under-watering may cause shriveling and leaf drop.
Light
This succulent thrives in full sun to partial shade, ideally receiving 6-8 hours of direct sunlight daily.
It can tolerate some shade, especially in hotter climates, but too little light can lead to leggy growth. Ideal placement includes south or west-facing windows or outdoor areas with filtered sunlight.
Soil
Aeonium arboreum prefers well-draining soil with a pH range of 6.0 to 7.0.
A cactus or succulent potting mix is recommended, or you can create your own by mixing regular potting soil with sand and perlite to enhance drainage. Ensure the pot has drainage holes to prevent water accumulation.
Humidity
This plant thrives in low to moderate humidity levels, ideally around 30-50%.
To increase humidity, you can mist the plant occasionally or place it on a pebble tray with water. Signs of humidity stress include leaf curling or browning tips.
Temperature
Aeonium arboreum prefers temperatures between 65-75°F (18-24°C) during the day and slightly cooler at night.
It is hardy in zones 9-11 and can tolerate brief periods of cold down to 25°F (-4°C) but should be protected from frost.
Fertilizing
Use a balanced, diluted liquid fertilizer with an NPK ratio of 10-10-10 or a specialized succulent fertilizer every 4-6 weeks during the growing season.
Reduce or stop fertilizing in fall and winter when the plant is dormant. Signs of nutrient deficiency include stunted growth and pale leaves.
Pruning
Prune Aeonium arboreum in late winter or early spring to maintain its shape and remove any dead or damaged leaves.
Use clean, sharp scissors or pruning shears. Deadheading spent flowers can encourage new growth and improve appearance.
Repotting
Repot every 2-3 years or when the plant outgrows its pot, indicated by roots growing out of the drainage holes.
Choose a pot that is 1-2 inches larger in diameter. Carefully remove the plant from its pot, gently loosen the roots, and place it in fresh soil. Water lightly after repotting to avoid root rot.
Propagation
Propagation can be done through stem cuttings or offsets.
For stem cuttings, take a healthy stem and allow it to callous for 1-2 days before planting it in well-draining soil. Water lightly until roots develop, which usually takes a few weeks. Offsets can be gently removed from the parent plant and planted directly into soil. Best timing for propagation is in spring or early summer.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or insufficient light
How to fix it
Reduce watering frequency and ensure the plant receives adequate sunlight.
Leggy growth
Why it happens
Insufficient light exposure
How to fix it
Move the plant to a brighter location to encourage compact growth.
Leaf drop
Why it happens
Under-watering or sudden temperature changes
How to fix it
Adjust watering schedule and protect the plant from drafts and temperature fluctuations.
Root rot
Why it happens
Poor drainage or over-watering
How to fix it
Ensure proper drainage and allow the soil to dry out completely before watering again.
Pests (mealybugs, aphids)
Why it happens
High humidity and poor air circulation
How to fix it
Treat with insecticidal soap or neem oil, and improve air circulation around the plant.
Care through the year
Spring
In spring, resume regular watering and fertilizing as the plant begins to actively grow. Monitor for pests and prune any dead leaves.
Summer
During summer, ensure the plant receives plenty of sunlight and water every 2-3 weeks. Watch for signs of heat stress and provide some shade if necessary.
Fall
In fall, gradually reduce watering as the plant enters dormancy. Continue to monitor for pests and prepare for cooler temperatures.
Winter
In winter, limit watering to once a month or as needed, keeping the plant in a warm, dry location away from drafts. Do not fertilize during this time.
Toxicity & Safety
Aeonium arboreum is generally non-toxic to pets and children. However, ingestion of large quantities may cause mild gastrointestinal upset. Always consult a veterinarian if ingestion occurs.
Good to know
Why are my Aeonium arboreum leaves turning yellow?
Yellow leaves on your Aeonium arboreum may indicate over-watering or insufficient light. Ensure you are allowing the soil to dry out between waterings and provide adequate sunlight.
How often should I water my Aeonium arboreum?
Water your Aeonium arboreum every 2-3 weeks during the growing season, allowing the soil to dry out completely between waterings. Reduce frequency in fall and winter.
What type of soil is best for Aeonium arboreum?
Aeonium arboreum thrives in well-draining soil with a pH of 6.0 to 7.0. A cactus or succulent mix is ideal, or you can create your own by mixing potting soil with sand and perlite.
Can I propagate Aeonium arboreum from cuttings?
Yes, Aeonium arboreum can be propagated from stem cuttings. Allow the cut end to callous for a couple of days before planting in well-draining soil.
What temperature is ideal for Aeonium arboreum?
Aeonium arboreum prefers temperatures between 65-75°F (18-24°C) during the day and can tolerate cooler nights. Protect it from frost and extreme cold.
How do I know when to repot my Aeonium arboreum?
Repot your Aeonium arboreum every 2-3 years or when you see roots growing out of the drainage holes. Choose a pot that is 1-2 inches larger in diameter.
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