Varieties
Aeonium arboreum species
Origin
Native to the Canary Islands, Madeira and the Mediterranean coast of Morocco
General Care
Light
Bright, direct to indirect. A south- or west-facing window is ideal. Foliage colour — particularly in dark-leaved cultivars such as 'Zwartkop' — deepens and intensifies under higher light conditions. Tolerates moderate light but growth becomes lax and rosettes lose their characteristic form without sufficient brightness.
Temperature
15–24°C. Keep above 5°C. Unlike many succulents, Aeonium is a winter grower and tolerates cool conditions well. Protect from frost and prolonged exposure to temperatures above 27°C, which may induce summer dormancy.
Humidity
Low. Tolerates dry indoor air well.
Water
Spring–fall: Every 1–2 weeks (fall–spring). Water thoroughly and allow the top half of the substrate to dry before watering again.
Summer: Every 3–4 weeks (summer). Reduce watering significantly during summer dormancy; leaves may curl inward to conserve moisture — this is a normal response rather than a sign of poor health. Always check moisture level before watering. Always check moisture level before watering. Aerate mix to improve its condition.
Fertilizer
Every 3-4 weeks (fall-spring). Use diluted cactus or succulent fertilizer, according to packaging instructions. Do not fertilize in summer.
Maintenance
Rotate every 2–3 weeks to encourage even, symmetrical rosette development. Remove spent or shrivelled leaves at the base of rosettes regularly to maintain a clean, architectural form. Inspect for pests periodically, paying particular attention to the dense centre of each rosette.
Potting and Repotting
Use a fast-draining cactus or succulent mix amended with coarse sand or pumice. Transplant once pot-bound. Every 2–3 years (fall), move plant into a planter 1–2" larger (diameter and depth); or repot in the same planter using fresh substrate after cleaning planter and lightly trimming roots. Top dress annually once maximum convenient planter size is reached. A wide, shallow planter is preferred over a deep one.
Special Points/Common Problems:
- Aeonium is a winter grower and summer dormant — the reverse of most succulents. Watering and fertilizing schedules should follow this cycle accordingly.
- Leaf curling and inward-folding rosettes in summer are a natural dormancy response. Reduce watering and avoid disturbing the plant until cooler temperatures resume growth in fall.
- Soft, mushy stems or rosettes at the base suggest overwatering or poor drainage, to which this plant is particularly susceptible in warm conditions.
- Leggy, elongated stems with sparse rosettes indicate insufficient light. Move to a brighter position gradually.
- Monocarpic rosettes — those that produce flowers — will die after flowering. Remove spent rosettes at their base; the plant will continue to grow from remaining stems and offsets.
- Propagate from rosette cuttings in fall or spring. Allow cut ends to callous for 24–48 hours before placing in substrate.