Aeonium care: the complete guide

2026-08-15 · Aeonium care guide

Photo: Hedwig Storch / CC BY-SA 3.0 via Wikimedia Commons

Aeoniums are striking succulent plants native to the Canary Islands, Madeira, and the Mediterranean. Their rosette-shaped foliage comes in colours ranging from bright lime green to near-black burgundy, and they have a sculptural quality that makes them popular in containers, coastal gardens, and conservatories across the UK. Unlike many succulents, Aeoniums have an unusual growth cycle: they are winter growers that go dormant in summer, which means the usual rules for succulent care need a little adjustment. Understanding this cycle is the single most important thing you can do to keep your plants thriving.

Light requirements

Aeoniums do best in bright, indirect light or gentle direct sun for around four to six hours a day. In the UK, a south- or west-facing windowsill is ideal for indoor plants, while outdoor specimens are happiest in a sunny but slightly sheltered spot. During the height of summer, intense midday sun can scorch the leaves, so move pots to a shadier position or provide light dappled shade. In winter, when the plants are actively growing, maximise light levels by wiping dust from the leaves and placing them as close to a window as possible.

Watering correctly through the seasons

The most common mistake with Aeoniums is overwatering in summer. When temperatures rise above roughly 25C, the plants enter dormancy: the rosettes curl inward, lower leaves may drop, and growth halts. During this period, water very sparingly, perhaps once every three to four weeks, just enough to stop the compost from becoming bone dry. Resume more regular watering in autumn as temperatures cool, and through winter and spring water whenever the top inch or two of compost feels dry, typically every one to two weeks depending on your home or greenhouse conditions. Always use a pot with drainage holes and tip away any water that collects in saucers within 30 minutes.

Soil and potting

Aeoniums need a free-draining compost that holds just enough moisture to support their winter growth without sitting wet. A mix of two parts John Innes No. 2 to one part horticultural grit or perlite works very well. Ready-made cactus and succulent compost is a convenient alternative, though adding around 20 to 30 per cent extra grit will improve drainage further. Terracotta pots are an excellent choice because they are porous and allow the roots to dry out more evenly between waterings. Repot every two to three years in early autumn, just as the plants begin to wake from summer dormancy.

Feeding and fertilising

Feed Aeoniums with a balanced liquid fertiliser diluted to half strength once a month during their active growing season, from roughly October through to April. A fertiliser with an NPK ratio around 5-5-5 or a purpose-made succulent feed is suitable. Avoid feeding during the summer dormancy period, as the plants are not growing and excess nutrients can accumulate in the compost and damage the roots. Stop feeding in late spring once the weather warms noticeably and growth begins to slow.

Propagation

Aeoniums are straightforward to propagate from stem cuttings, making them rewarding plants to multiply or share. Take cuttings in early autumn, selecting healthy stems with a firm rosette at the tip. Use a clean, sharp knife to cut the stem cleanly, leaving around 5 to 8 cm of stem below the rosette. Allow the cut end to callous over in a dry spot out of direct sun for two to three days, then push it gently into barely moist, gritty compost. Do not water for the first week, then mist lightly every few days. Roots typically form within four to six weeks.

Common problems and how to solve them

Leggy, stretched growth usually means insufficient light, so move the plant to a brighter position. Soft, mushy stems or black rot at the base almost always indicate overwatering or waterlogged compost; remove affected parts with a clean blade, allow to dry, and repot into fresh compost if needed. Mealy bugs are the most likely pest to trouble Aeoniums: look for white, cottony deposits in the leaf axils and treat promptly by dabbing affected areas with a cotton bud dipped in isopropyl alcohol, or spray with a diluted neem oil solution. If your Aeonium suddenly produces a tall flower spike covered in star-shaped yellow or pink blooms, enjoy it, but be aware that the rosette that flowered will die afterwards. Other offsets growing from the base of the plant will carry on, so the overall plant survives even as individual heads complete their life cycle.