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Plant care

Bushy Aichryson care

Aichryson dumosum

Also called Bushy Aichryson.

RHS H2USDA 10-11Mildly toxic to petsIndoor Up to 38 cm (15 in) tall in cultivation

Watering rhythm

10-15days

Every 10–15 days in summer (growing season); once monthly in winter

Light

Bright indirect light (just back from a sunny window)

Soil

Well-draining cactus and succulent mix with added grit

Humidity

40–55%

Temp

5–30°C

Pet safety

Mildly toxic to pets

Mature size

Up to 38 cm (15 in) tall in cultivation

Care at a glance

Light

In the wild bushy aichryson grows on the bright edge of a forest canopy, not in the canopy and not in the open. Indoors, that translates to within a metre of an unobstructed window, sheer curtain optional. Prefers bright light with some gentle direct sun, particularly in morning. Transition gradually to any direct sun over 5–7 days to prevent scorching. In its native Madeira cliff habitat it experiences bright but partially diffused light. Avoid intense afternoon sun in summer. The fastest test: a hand held at the leaf casts a soft-edged shadow at noon — sharp shadow means too much sun, no shadow means too little light.

Watering

Aim for every 10–15 days in summer (growing season); once monthly in winter for bushy aichryson, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Aichryson dumosum is a summer grower with a winter dormancy. Water every 10–15 days in the active season, allowing the top layer to dry between waterings. Reduce to roughly once a month in November and February; withhold almost entirely in December and January. Resume gradually in spring.

Soil and pot

Bushy Aichryson grows best in well-draining cactus and succulent mix with added grit. Mix standard cactus compost with 30–40% extra perlite, pumice, or sharp sand to ensure rapid drainage. In its native habitat it colonises rock crevices with minimal organic matter. A terracotta pan is ideal. 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

Bushy Aichryson sits happiest at around 40–55% humidity and 5–30°C (41–86°F). Madeira's maritime climate provides moderate humidity; this species tolerates moderate household humidity better than most succulents. Avoid very dry heated-room air in winter, which can cause leaf drop. If you keep the room above 5–30°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 bushy aichryson sparingly. Apply a balanced liquid succulent fertiliser at quarter strength once a month during summer. Do not feed during the winter dormancy period (November–February). 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 bushy aichryson in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Winter overwateringWatering too frequently in December and January when the plant is dormant is the most common cause of stem rot. Withhold water almost entirely in midwinter; resume cautiously in late February.
  • Leaf drop in dry airUnlike arid succulents, this Madeiran native prefers moderate humidity. In very dry centrally heated rooms it drops leaves prematurely. Position away from radiators and increase local humidity slightly.
  • Spider mites in dry conditionsFine webbing on young growth signals spider mites, which thrive in hot, dry indoor air. Increase ventilation, mist lightly around (not on) the plant, and treat with an appropriate miticide or neem oil solution.

Propagation

Easily propagated by rosette-tip cuttings 5–8 cm long taken in spring or early summer. Allow cut ends to callus for 5 days, then plant in barely moist gritty mix. Cuttings root readily at 18–22°C in bright indirect light. 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

Bushy Aichryson is mildly toxic to pets. Aichryson dumosum is not individually listed by ASPCA. Some sources note Aichryson laxum (a close relative) as non-toxic; however, the genus is not comprehensively evaluated by ASPCA. As a Crassulaceae member without confirmed bufadienolide compounds, it is considered at most mildly toxic. Mild gastric irritation is possible if ingested; consult a vet if a pet eats any. 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.

Bushy Aichryson care — frequently asked questions

What is Bushy Aichryson?

Bushy Aichryson (Aichryson dumosum) is a houseplant with a highly branched succulent shrublet with reddish-purple stems; compact and bonsai-like in habit growth habit, reaching up to 38 cm (15 in) tall in cultivation; typically 20–30 cm (8–12 in) indoors at maturity. A critically endangered, slow-growing succulent shrublet endemic to a single rocky ravine in Madeira, with reddish-purple branches up to 38 cm tall and bright golden-yellow star flowers. In cultivation it thrives in bright light with good drainage and a summer dry rest.

How much light does bushy aichryson need?

Bushy Aichryson grows best in bright indirect light (just back from a sunny window). Prefers bright light with some gentle direct sun, particularly in morning. Transition gradually to any direct sun over 5–7 days to prevent scorching. In its native Madeira cliff habitat it experiences bright but partially diffused light. Avoid intense afternoon sun in summer.

How often should I water bushy aichryson?

Water bushy aichryson every 10–15 days in summer (growing season); once monthly in winter. Aichryson dumosum is a summer grower with a winter dormancy. Water every 10–15 days in the active season, allowing the top layer to dry between waterings. Reduce to roughly once a month in November and February; withhold almost entirely in December and January. Resume gradually in spring. 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 bushy aichryson toxic to cats and dogs?

Bushy Aichryson is mildly toxic to pets. Aichryson dumosum is not individually listed by ASPCA. Some sources note Aichryson laxum (a close relative) as non-toxic; however, the genus is not comprehensively evaluated by ASPCA. As a Crassulaceae member without confirmed bufadienolide compounds, it is considered at most mildly toxic. Mild gastric irritation is possible if ingested; consult a vet if a pet eats any.

What USDA hardiness zone does bushy aichryson grow in?

Bushy 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.

Bushy Aichryson deep-dive guides

Every aspect of bushy aichryson care, each with its own calibrated guide:

Featured in these plant shortlists

Bushy Aichryson qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Bushy Aichryson is also commonly called Bushy Aichryson.