Alocasia Polly — often sold as the African Mask Plant — is the compact alocasia that fits on a shelf where its bigger cousins cannot. Its dark, glossy, arrow-shaped leaves have wavy edges and bold pale veins, so each leaf looks like a sculpted mask, and the whole plant rarely grows much beyond knee height indoors. It is a hybrid of Alocasia amazonica, bred to stay small while keeping the dramatic looks of the species.
Polly has a reputation for being fussy, and it is fair: it wants warmth, high humidity and soil that stays lightly moist but never soggy, and it sulks visibly when any of those slip. But it is not mysterious — it just wants tropical conditions, consistently. This guide covers exactly what it needs: light, watering, humidity, temperature, soil, repotting, feeding, propagation and the common problems that show up when something is off, including the winter dormancy that catches new owners by surprise.
Alocasia Polly at a glance
| Care factor | What this plant needs |
|---|---|
| Botanical name | Alocasia amazonica 'Polly' |
| Light | bright indirect |
| Water | weekly; keep soil lightly moist |
| Humidity | high |
| Temperature | 65–85°F (18–29°C) |
| Repotting | every 1–2 years |
| Pet safety | toxic to cats and dogs |
Light
Give your Alocasia Polly bright indirect light. A spot near an east- or west-facing window is ideal, or a metre or so back from a bright south-facing window. Bright light keeps the leaves dark and glossy and the growth compact; in too little light the stems stretch, the leaves get smaller, and the plant loses the tight, sculpted look that makes Polly worth growing. Our grow-light calculator can help work out whether your spot is bright enough.
Harsh direct sun is the other extreme to avoid. Midday sun through glass can scorch the dark leaves, leaving pale, bleached patches that do not heal, so a sheer curtain is worth it on a south-facing window. Rotate the pot a quarter turn every couple of weeks so the plant grows evenly towards the light rather than leaning hard in one direction.
Watering
Water weekly; keep soil lightly moist. Polly is different from most houseplants here: it does not want to dry out between waterings the way a syngonium or pothos does. Check the soil every few days and water when the top inch or so begins to dry, so the mix stays lightly and evenly moist — never soggy, never bone dry. Water thoroughly until water runs out of the drainage holes, then empty the saucer so the plant never sits in standing water. Our watering calculator gives a starting point for your pot size, and the watering schedule generator can help you build a weekly routine around it.
The balance is the hard part: too wet and the roots rot, too dry and the leaves droop and crisp at the edges. In winter, when growth slows, ease off slightly and let the top dry a little more between waterings, but do not let the whole pot dry out. If you are unsure, check with a finger rather than watering on a fixed day — the interval changes with the season, the pot size and how warm the room is.
Humidity and temperature
Alocasia Polly needs high humidity and temperatures of 65–85°F (18–29°C). This is the care factor that matters most for Polly, and the one most homes fail on. A typical heated home in winter is far drier than this plant likes, and the first sign is brown, crispy leaf edges. Grouping plants together, a pebble tray under the pot, or a small humidifier near the plant all help; a humidifier is the only method that reliably lifts the humidity enough for an alocasia. Misting does very little — the water evaporates in minutes. Our humidity and temperature checker can tell you whether your room suits this plant.
Temperature matters just as much. Polly is a tropical plant and it hates the cold: anything below about 60°F stresses it, and a cold draught from a window or door can make the leaves droop within a day. Keep it away from cold windows in winter, from radiators that dry the air, and from air-conditioning vents that blast cold air directly at it. Warmth and humidity together are the whole secret of this plant.
Soil and potting
Indoors, this plant needs a rich but very free-draining potting mix. Standard potting soil on its own holds too much water and compacts over time, so mix it with perlite, orchid bark and a little coco coir to keep air around the roots while still holding some moisture — the roots need oxygen as much as they need water, and Polly's roots rot fast in a heavy, wet mix. A pot with drainage holes is not optional; without one, water has nowhere to go and root rot follows. Our potting-mix calculator can work out the parts for a homemade mix for your pot size. A chunky, airy mix is the single best insurance against the overwatering that kills most Pollys.
Repotting
Repot every 1–2 years, in spring, or sooner if roots are circling the drainage holes. Alocasias grow fast in warm, bright conditions and fill a pot sooner than most houseplants, so check the roots each spring. Move up only one pot size — a pot that is too big holds wet soil the roots cannot use, and for a plant that already likes its soil moist, that is a fast route to rot. Our repotting calculator can help you work out the next pot size and how much fresh mix you will need. Repotting is also the moment to divide the plant or harvest the small corms that form around the roots — see Propagation below.
Feeding
Feed during the growing season, in spring and summer, with a balanced liquid houseplant fertiliser at half the strength on the label, roughly once a month while the plant is actively growing. Do not feed in autumn and winter when growth slows or the plant goes dormant. Always follow the directions on the label — more fertiliser is not better, and excess salts build up in the soil and burn the roots, which often shows up as brown leaf edges. If you have been feeding heavily, flush the soil with plain water occasionally to wash the salts out. A plant growing in fresh mix needs very little extra food.
Propagation
Alocasia Polly is propagated by division, not by stem cuttings — a stem cutting will not root, because there is no node to root from. The reliable method is to divide the rhizome or to plant the small round corms that form around the roots. The easiest time to do this is when you repot in spring: gently tease the root ball apart, look for the corms clustered near the base, and pot them separately in moist, free-draining mix, keeping them warm and humid until they sprout. Corms can take several weeks to sprout, so be patient and do not dig them up to check.
You can also divide a mature plant into two or more pieces, each with roots and at least one leaf, and pot each piece separately. Keep new divisions warm, humid and out of direct sun for the first few weeks while they establish. Expect a new division to sulk — drooping or losing a leaf — before it settles and starts growing again.
Common problems and fixes
| Problem | Likely cause | Fix |
|---|---|---|
| Yellow leaves | overwatering | Let the soil dry a little more between waterings; check drainage and remove yellow leaves. |
| Drooping leaves | underwatering or cold | Water if the soil is dry; move the plant to a warm spot away from cold draughts. |
| Brown leaf edges | low humidity | Raise humidity with a humidifier or pebble tray; flush salts from the soil. |
Yellow leaves
Likely cause: overwatering. Yellow leaves, especially lower ones, most often mean the soil has stayed too wet. Let the top of the soil dry a little more before watering again, check that the pot drains freely, and remove the yellow leaves once they are fully yellow. With Polly, overwatering is the fastest killer, so if several leaves yellow at once, check the roots — soft, black roots mean rot, and you should cut the rot away and repot in fresh, dry mix.
Drooping leaves
Likely cause: underwatering or cold. Drooping leaves usually mean the soil has gone too dry, or the plant has been chilled by a cold draught or a cold window. Check the soil first: if it is dry, water thoroughly and the leaves should lift within a day. If the soil is moist, look for cold — move the plant somewhere warm and draught-free. A leaf that has drooped badly may not fully recover, but new growth should be fine.
Brown leaf edges
Likely cause: low humidity. Brown, crispy edges are usually low humidity, sometimes made worse by fertiliser salts or by letting the soil dry out completely. Raise the humidity around the plant — a humidifier is the most reliable method for an alocasia — keep the soil lightly moist, and flush the soil with plain water to wash out salts. Damaged edges will not heal, but new leaves should come out clean if the air is moist enough.
Frequently asked questions
How often should I water Alocasia Polly?
Water weekly; keep soil lightly moist. Unlike many houseplants, Polly does not want to dry out fully between waterings — water when the top inch or so begins to dry, so the mix stays lightly and evenly moist. Ease off slightly in winter, but never let the whole pot dry out.
How much light does Alocasia Polly need?
It needs bright indirect light — a spot near an east- or west-facing window is ideal. Too little light gives stretched stems and small leaves; harsh direct sun scorches the dark leaves.
Is Alocasia Polly safe for cats and dogs?
According to the data used for this guide, this plant is toxic to cats and dogs. Keep it out of reach of pets that chew plants, and if a pet eats any of it, contact your vet.
Why are my Polly's leaves drooping?
Drooping leaves are most often caused by underwatering or cold. Check the soil — if it is dry, water thoroughly. If the soil is moist, the plant may have been chilled by a cold draught or cold window; move it somewhere warm and draught-free.
Does Alocasia Polly go dormant in winter?
Yes, it can. In cool, dark winter conditions Polly may slow right down or drop its leaves and go dormant. Do not throw it away — keep the corm barely moist, warm and out of direct sun, and it should sprout again in spring when light and warmth return.