Alsobia 'San Miguel' (San Miguel alsobia) care

Light

Bright but filtered. Alsobia 'San Miguel' burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Bright, filtered light suits it best, similar to African violets. An east window or a few feet back from a south or west window is ideal. Avoid harsh direct midday sun, which scorches the thin leaves; too little light stops flowering and stretches the runners. 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 alsobia 'san miguel': when the top 1-2 cm of soil is dry, roughly every 5-7 days. 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. Keep the mix evenly moist but never waterlogged. Water from below or at the soil line with room-temperature water; cold water spots and chills the fuzzy leaves. Ease off in winter, letting the surface dry slightly more between drinks.

Soil and pot

Alsobia 'San Miguel' grows best in light, airy african-violet or gesneriad mix. Use a peat- or coir-based mix lightened with perlite and a little fine bark so it drains fast yet holds moisture. A pinch of horticultural charcoal helps in terrariums. Good aeration around the shallow roots prevents the crown and stolons from rotting. 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

Alsobia 'San Miguel' sits happiest at around 50-70% humidity and 18-27°C (65-80°F). Loves consistently high humidity and flowers best above 50%. A pebble tray, room humidifier, or terrarium keeps it lush. Dry air browns leaf edges and aborts buds. Avoid misting the fuzzy foliage directly, which encourages spotting and fungal blemishes. If you keep the room above 18 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 alsobia 'san miguel' sparingly. Feed every 2-4 weeks in spring and summer with a balanced or slightly bloom-leaning fertiliser diluted to quarter or half strength. A high-phosphorus African-violet feed encourages flowering. Stop or reduce feeding in winter when growth slows. 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 alsobia 'san miguel' in the Growli community. Each is annotated with the most common cause so you know where to start.

• No flowers — Almost always too little light or skipped feeding. Move to a brighter spot out of direct sun and resume a bloom-friendly fertiliser through the growing season.
• Leaf spotting — Cold water or water sitting on the fuzzy leaves causes pale blotches. Water at the soil line with tepid water and avoid wetting the foliage.
• Crown or stolon rot — Soggy, dense soil rots the shallow roots and runners. Use an airy mix, let the surface dry between waterings, and never leave the pot standing in water.
• Brown, crispy leaf edges — A sign of dry air. Raise humidity with a pebble tray, humidifier, or enclosed case rather than misting the leaves directly.

Propagation

Easiest of all gesneriads to propagate: pin a runner's plantlet onto moist mix until it roots, then sever it. Leaf cuttings and division of rooted rosettes also work readily in warm, humid conditions. 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

Alsobia 'San Miguel' is pet-safe. ASPCA-listed as non-toxic to cats and dogs. The lace flower (Alsobia/Episcia dianthiflora, family Gesneriaceae) appears on the ASPCA non-toxic plant list under the common name 'Lace-Flower Vine'; this hybrid belongs to the same lace-flower group, so no ill effects are expected from ingestion. 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.

Alsobia 'San Miguel' deep-dive guides

Every aspect of alsobia 'san miguel' care, each with its own calibrated guide:

• Alsobia 'San Miguel' watering schedule
• Alsobia 'San Miguel' light requirements
• Best soil mix for alsobia 'san miguel'
• Alsobia 'San Miguel' fertilizing guide
• When to repot alsobia 'san miguel'
• How to propagate alsobia 'san miguel'
• Alsobia 'San Miguel' growth rate & size
• Alsobia 'San Miguel' cold hardiness
• Alsobia 'San Miguel' temperature & humidity
• Is alsobia 'san miguel' toxic to cats & dogs?
• Is alsobia 'san miguel' toxic to cats?
• Is alsobia 'san miguel' toxic to dogs?
• Getting alsobia 'san miguel' to bloom

Featured in these plant shortlists

Alsobia 'San Miguel' qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

• Best pet-safe houseplants — Houseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
• 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 trailing & climbing houseplants — Vining and trailing houseplants for shelves, hanging pots, and moss poles — selected by growth habit.
• Best humidity-loving houseplants — Houseplants that thrive in a bathroom, kitchen, or by a humidifier — selected by documented humidity preference.
• Best flowering houseplants — Indoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
• Best pet-safe trailing & hanging plants — Trailing and climbing plants the ASPCA lists as non-toxic to cats and dogs — safe for shelves and hanging pots in a pet home.
• Best pet-safe flowering plants — Flowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
• Best pet-safe plants for bright light — Non-toxic to cats and dogs and happy in a bright, sunny spot — safe plants for your best-lit windowsill.
• Best cat-safe plants — Houseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
• Best dog-safe plants — Houseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
• Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

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Alsobia 'San Miguel' is also commonly called San Miguel alsobia or San Miguel lace flower.

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