Growli

Plant care

Alpine Liverwort (Fairy foxglove) care

Erinus alpinus

Also called Alpine liverwort, Fairy foxglove, Alpine balsam, Liver balsam.

RHS H6USDA 4-7Mildly toxic to petsIndoor 8–15 cm tall

Watering rhythm

Bright indirect light (just back from a sunny window)

Low to moderate — water when the top centimetre of soil dries

Light

Bright indirect light (just back from a sunny window)

Soil

Well-drained; chalk, loam, or sand; tolerates acid to alkaline pH

Humidity

Low

Temp

-20 to 25°C

Pet safety

Mildly toxic to pets

Mature size

8–15 cm tall

Care at a glance

Light

In the wild alpine liverwort 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. Thrives in full sun or partial shade; in hotter, drier climates light afternoon shade prolongs the flowering period and prevents the foliage from bleaching. 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 low to moderate — water when the top centimetre of soil dries for alpine liverwort, 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. Drought-tolerant once established; well-drained conditions are essential as the plant is susceptible to rotting at the collar in persistently wet soil.

Soil and pot

Alpine Liverwort grows best in well-drained; chalk, loam, or sand; tolerates acid to alkaline ph. Grows naturally in rock crevices with minimal soil; a gritty, low-fertility mix suits it well, and it self-seeds readily into mortared walls and between paving. 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

Alpine Liverwort sits happiest at around Low humidity and -20 to 25°C (-4 to 77°F). Prefers low to moderate ambient humidity; high humidity in warm, still conditions can encourage fungal collar rot — site in an open, breezy position. If you keep the room above 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 alpine liverwort sparingly. Feeding is largely unnecessary given its preference for low-fertility substrate; a light top-dressing of balanced fertiliser in spring can extend flowering in pot-grown plants. 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 alpine liverwort in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Short lifespan and die-offPlants typically live only three to five years; allow them to self-seed into nearby crevices or collect and surface-sow seed annually to maintain the colony.
  • Collar rotCaused by waterlogged soil at the base of the rosette, particularly after wet winters; ensure very sharp drainage and avoid watering the crown directly.

Propagation

Easiest from seed: sow on the surface of gritty compost without covering (needs light to germinate) at around 20°C in spring; or collect ripe seed and sow in autumn for early spring germination. Rosette offsets can also be detached and rooted in gritty sand. 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

Alpine Liverwort is mildly toxic to pets. Erinus alpinus is not listed by the ASPCA as toxic to cats, dogs, or horses. There are no reported cases of significant toxicity; however, as no formal 'non-toxic' listing exists for this species in the ASPCA database, 'mildly-toxic' is applied as a precaution. Monitor pets after ingestion and seek veterinary advice if symptoms develop. 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.

Alpine Liverwort care — frequently asked questions

What is the common name for Erinus alpinus?

Erinus alpinus is most commonly called Alpine Liverwort, but it is also known as Alpine liverwort, Fairy foxglove, Alpine balsam, Liver balsam. The names refer to the same species, so care instructions for Alpine Liverwort apply identically to anything sold as Fairy foxglove.

How much light does alpine liverwort need?

Alpine Liverwort grows best in bright indirect light (just back from a sunny window). Thrives in full sun or partial shade; in hotter, drier climates light afternoon shade prolongs the flowering period and prevents the foliage from bleaching.

How often should I water alpine liverwort?

Water alpine liverwort low to moderate — water when the top centimetre of soil dries. Drought-tolerant once established; well-drained conditions are essential as the plant is susceptible to rotting at the collar in persistently wet soil. 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 alpine liverwort toxic to cats and dogs?

Alpine Liverwort is mildly toxic to pets. Erinus alpinus is not listed by the ASPCA as toxic to cats, dogs, or horses. There are no reported cases of significant toxicity; however, as no formal 'non-toxic' listing exists for this species in the ASPCA database, 'mildly-toxic' is applied as a precaution. Monitor pets after ingestion and seek veterinary advice if symptoms develop.

What USDA hardiness zone does alpine liverwort grow in?

Alpine Liverwort is rated for USDA zone 4-7 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Alpine Liverwort deep-dive guides

Every aspect of alpine liverwort care, each with its own calibrated guide:

Featured in these plant shortlists

Alpine Liverwort qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Alpine Liverwort is also known as Alpine liverwort, Fairy foxglove, Alpine balsam, and Liver balsam.