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Alocasia Polly

Alocasia × amazonica 'Polly'

FoliageModerate–HardSlow–Moderatetoxic to pets
Good to know: The "African mask plant" is neither African nor wild. It's a mid-century greenhouse hybrid, and those glossy black leaves with white veins made it famous anyway.

Through the year 🗓️

☀️ Summer now

Peak season. Keep moisture and humidity steady and check under leaves weekly for spider mites.

🍂 Fall

Taper water and stop feeding; losing a leaf or two as light fades is normal, not failure.

❄️ Winter

If it dies back entirely, keep the corm's soil barely moist and warm. It very often returns in spring.

🌱 Spring

Repot and divide corms as new leaves emerge from dormancy, and resume gentle feeding.

The details

Light & placement

Light
Bright indirect, consistently: no direct sun, no dark corners, no compromises
Ideal PPFD
200–400 µmol·m⁻²·s⁻¹
Grow-light distance
14–20 in below LED

Water & feed

Watering method
Keep lightly, evenly moist, watering when the top inch dries, never soggy and never bone-dry. Room-temperature water only; cold water shocks the roots.
Fertilizer
Balanced feed at ½ strength, monthly in spring–summer.

Home & habit

Soil
Chunky, airy aroid mix (bark + perlite + coco); pH 5.5–6.5
Humidity
High (60%+); a humidifier is the honest answer, and crispy edges appear below 50%
Temperature
65–80 °F; sulks below 60 °F
Mature size
1–2 ft tall and wide
Repotting
Every 1–2 yrs in spring; likes being slightly snug
Propagation
Division of rhizome clumps and corms at repotting; tiny corms in the soil sprout into new plants.

When something looks wrong

Overwatering signs
Yellowing leaves, mushy petioles, rotting corm, weeping leaf edges
Underwatering signs
Drooping stems, crispy brown edges, whole leaves sacrificed
Common pests
Spider mites (its nemesis in dry air), mealybugs, thrips
Care notes: A genuine drama queen: drafts, dry air, cold water, or a missed watering all get answered with a dropped leaf. It also routinely dies back to the corm in winter and resprouts in spring; do not throw out the pot.

Common problems 🩺

The usual suspects when Alocasia Polly looks unhappy. Most houseplant trouble is watering or light, not disease — see all plant problems if you are not sure which plant is the culprit.

Yellowing leaves one after another

Likely cause
Overwatering, or the plant entering its winter rest.

What to do
Ease off water in winter. Alocasias often drop to a few leaves and regrow in spring.

Fine webbing and stippled leaves

Likely cause
Spider mites — alocasias are a favorite target.

What to do
Rinse both sides of every leaf, raise humidity, and treat weekly until clear.

Drooping despite moist soil

Likely cause
Root rot, or a pot that stays wet too long.

What to do
Check the roots and repot into a chunky, fast-draining aroid mix.

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