Plant care
Twisted Aichryson (Twisted House Leek) care
Aichryson tortuosum
Also called Twisted Aichryson, Twisted House Leek.
Watering rhythm
2-3weeks
Every 2–3 weeks in spring and summer; monthly in winter
Light
Bright indirect light (just back from a sunny window)
Soil
Well-draining cactus or succulent mix
Humidity
25–45%
Temp
8–24°C
Pet safety
Mildly toxic to pets
Mature size
15–25 cm tall
Care at a glance
Light
Bright but filtered. Twisted Aichryson burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Grows best in bright indirect light with some gentle morning sun. A south- or east-facing windowsill is ideal. Avoid intense direct afternoon sun in summer, which can bleach or scorch the hairy leaves. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.
Watering
Watering twisted aichryson: every 2–3 weeks in spring and summer; monthly in winter. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Water moderately in the growing season, allowing the top half of the soil to dry between waterings. Reduce significantly in winter when the plant semi-rests. Never leave standing in water — root rot develops quickly.
Soil and pot
Twisted Aichryson grows best in well-draining cactus or succulent mix. Use cactus compost mixed with 30–40% perlite or coarse grit. A small terracotta pot promotes healthy drying cycles. Repot every 2–3 years or when the plant becomes top-heavy. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.
Humidity and temperature
Twisted Aichryson sits happiest at around 25–45% humidity and 8–24°C (46–75°F). Tolerates average indoor humidity well. High humidity combined with poor airflow can encourage fungal disease on the hairy leaf surfaces. A well-ventilated room is preferable to a damp bathroom. If you keep the room above 8–24°C year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.
Fertilising
Feed twisted aichryson sparingly. Feed monthly from March to August with a diluted half-strength balanced liquid fertiliser or dedicated cactus feed. Withhold fertiliser entirely from September through February to encourage a natural rest. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.
Common problems
Below are the issues we see most often on twisted aichryson in the Growli community. Each is annotated with the most common cause so you know where to start.
- Leggy, weak growth — Plants stretch significantly in low light, losing their compact twisted form. Move to a brighter spot and prune back leggy stems in spring — cuttings root easily.
- Root rot — Overwatering or poor drainage causes rapid root rot. The hairy stems hold moisture so take extra care not to wet them when watering. Allow soil to partially dry between waterings.
- Aphids on new growth — Soft new stems and flower buds attract aphids in spring. Remove by hand or spray with a diluted insecticidal soap solution. Repeat after 7 days to catch hatching nymphs.
Propagation
Stem cuttings taken in spring or early summer root readily. Allow cut ends to callous for 24–48 hours, then insert into barely moist gritty compost. Rooting usually occurs within 3–4 weeks in a bright, warm position. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.
Toxicity to pets
Twisted Aichryson is mildly toxic to pets. Aichryson is a Crassulaceae genus closely allied to Aeonium. It is not individually listed by ASPCA, but related jade-type Crassulaceae genera are considered toxic to dogs and cats. Treat as mildly toxic and keep away from pets as a precaution. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).
Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.
Twisted Aichryson care — frequently asked questions
What is the common name for Aichryson tortuosum?
Aichryson tortuosum is most commonly called Twisted Aichryson, but it is also known as Twisted Aichryson, Twisted House Leek. The names refer to the same species, so care instructions for Twisted Aichryson apply identically to anything sold as Twisted House Leek.
How much light does twisted aichryson need?
Twisted Aichryson grows best in bright indirect light (just back from a sunny window). Grows best in bright indirect light with some gentle morning sun. A south- or east-facing windowsill is ideal. Avoid intense direct afternoon sun in summer, which can bleach or scorch the hairy leaves.
How often should I water twisted aichryson?
Water twisted aichryson every 2–3 weeks in spring and summer; monthly in winter. Water moderately in the growing season, allowing the top half of the soil to dry between waterings. Reduce significantly in winter when the plant semi-rests. Never leave standing in water — root rot develops quickly. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.
Is twisted aichryson toxic to cats and dogs?
Twisted Aichryson is mildly toxic to pets. Aichryson is a Crassulaceae genus closely allied to Aeonium. It is not individually listed by ASPCA, but related jade-type Crassulaceae genera are considered toxic to dogs and cats. Treat as mildly toxic and keep away from pets as a precaution.
What USDA hardiness zone does twisted aichryson grow in?
Twisted Aichryson is rated for USDA zone 10-11 and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.
Twisted Aichryson deep-dive guides
Every aspect of twisted aichryson care, each with its own calibrated guide:
- Common twisted aichryson problems & fixes
- Twisted Aichryson watering schedule
- Twisted Aichryson light requirements
- Best soil mix for twisted aichryson
- Twisted Aichryson fertilizing guide
- When to repot twisted aichryson
- How to propagate twisted aichryson
- How to prune twisted aichryson
- What's eating my twisted aichryson?
- Twisted Aichryson growth rate & size
- Twisted Aichryson cold hardiness
- Twisted Aichryson temperature & humidity
- Is twisted aichryson toxic to cats & dogs?
- Is twisted aichryson toxic to cats?
- Is twisted aichryson toxic to dogs?
- All 9 Aichryson varieties
Featured in these plant shortlists
Twisted Aichryson qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:
- Best plants for a north-facing window — Houseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
- Best drought-tolerant houseplants — Houseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
- Best succulents for beginners — The easiest succulents and cacti to keep alive — selected by documented growth habit, each with the light and watering it actually wants.
- Best small & tabletop houseplants — Compact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
- Best houseplants for a cool room — Houseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
- Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more
Related guides
Twisted Aichryson is also commonly called Twisted Aichryson or Twisted House Leek.