Alocasia zebrina is grown for its stems: tall leaf stalks banded in black and cream like a zebra, topped with glossy, arrow-shaped leaves. It comes from the Philippines and, like other alocasias, it likes warmth, bright indirect light and moderate to high humidity, and it often drops leaves in winter. Alocasia zebrina care is mostly about not overwatering: a gritty, free-draining compost, water when the top few centimeters dry, and much less in winter. This guide follows the RHS, NC State, UW-Madison and the ASPCA.
What Is Alocasia Zebrina?
The RHS describes Alocasia zebrina as a native of the Philippines with dark green, glossy, arrow-shaped leaves and a black and white striped stem, growing 0.5 to 1 m tall and wide. It is rated H1A, meaning it needs to be kept under glass or indoors all year above 15°C. NC State says it can reach 3 feet tall and wide, with white and green striped stems. Alocasia is a genus of about 80 tuberous perennials in the arum family, native to tropical and subtropical Asia and eastern Australia (NC State).
| Need | What the sources say |
|---|---|
| Light | Bright, indirect; strong sun scorches (RHS) |
| Compost | Peat-free houseplant compost with added grit (RHS) |
| Water | When the top 5 cm (2 in) is dry, April to October; minimal in winter (RHS) |
| Temperature | Above 16°C (60°F) in growth, never below 10°C (50°F) (RHS) |
| Humidity | Medium to high (RHS) |
| Feeding | General liquid fertilizer, April to October (RHS) |
| Size | 0.5 to 1 m (RHS); up to 3 ft (NC State) |
| Pets | Toxic to dogs, cats and horses (ASPCA) |
Sources: RHS alocasia growing guide and A. zebrina plant page; NC State Extension; ASPCA.
Light
The RHS growing guide says alocasias do best in bright, indirect light, that strong sunlight can scorch the foliage, and that lower light works but slows growth. NC State lists dappled sun or partial shade. Indoors, a spot near an east window or set back from a brighter window is ideal. The RHS also suggests turning the pot at each watering so the plant doesn’t lean toward the light.
Compost and Pot
The RHS recommends peat-free houseplant compost, or peat-free multipurpose compost mixed with grit at about three parts compost to one part grit, and its A. zebrina page suggests houseplant compost with added horticultural grit. NC State lists a slightly acidic, moist, well-drained, humus-rich soil. The aim is a mix that holds some moisture but drains fast, so the roots never sit in wet compost. See our aroid soil mix guide.
The RHS suggests leaving a new plant in its pot for about a year, then repotting every couple of years in spring when the roots are crowded, moving up only about 5 cm (2 in) in pot width; larger plants do better in heavy terracotta pots that resist tipping.
Watering
The RHS says to water from April to October when the top 5 cm (2 in) of compost is dry, and to water minimally while the plant is dormant in winter, warning that overwatering, especially during dormancy, rots the roots. NC State notes that overwatering causes root rot and leaf spots and that both over- and underwatering can yellow the leaves. Water thoroughly, let the pot drain, and don’t leave it standing in water. If you bottom water, our bottom watering guide explains why you still need to water from the top now and then to flush salts.
Temperature and Humidity
The RHS says to keep alocasias above 16°C (60°F) during the growing season, away from cold drafts, and never below 10°C (50°F) in winter. NC State gives 68 to 77°F as the best daytime range. For humidity, the RHS suggests medium to high humidity: a pebble tray, a bathroom, regular misting, grouping plants or a humidifier. It notes that low humidity can cause brown leaf edges and attract red spider mites. For more on dry air, see our VPD guide.
Feeding
The RHS recommends a general liquid fertilizer from April to October, at the dose and frequency on the label. UW-Madison describes elephant ears in general as heavy feeders during growth. Stop feeding in winter while the plant rests.
Alocasia Zebrina Winter Care
The RHS says winter dormancy is normal for alocasias: the plant may drop some leaves, which is nothing to worry about, and fresh growth returns in spring. During this time:
- Water very little; overwatering during dormancy is the main cause of root rot (RHS).
- Keep it above 10°C (50°F) and away from cold windows and drafts (RHS).
- Don’t feed until spring (RHS).
- Keep it bright. UW-Madison says elephant ears kept as houseplants over winter need a warm, bright spot and should be kept on the drier side while semi-dormant.
If every leaf dies back, check the corm before giving up: a firm corm will usually sprout again in spring.
Yellow Leaves and Leaf Loss
| Symptom | Likely cause | What to do |
|---|---|---|
| A leaf or two yellowing in autumn or winter | Normal dormancy (RHS) | Water less; wait for spring |
| Several leaves yellowing, wet compost | Overwatering, root rot (RHS, NC State) | Let the top dry; check roots; repot into a grittier mix |
| Yellowing with dry compost | Underwatering (NC State) | Water thoroughly when the top 5 cm is dry |
| Brown, crispy edges | Low humidity (RHS) | Raise humidity |
| Damage after a cold spell | Below 10°C or cold drafts (RHS) | Move somewhere warmer |
| Scorched patches | Strong sun (RHS) | Move out of direct sun |
Sources: RHS alocasia growing guide; NC State Extension.
Alocasia zebrina yellow leaves are usually a watering issue. For more help, see our yellow leaves guide.
Pests
NC State lists spider mites, aphids and mealybugs as common alocasia pests, and the RHS notes that red spider mites like dry air. Check the undersides of the leaves regularly, especially in winter. See our spider mite treatment guide.
Propagation
The RHS describes two methods:
- Offsets: in spring, separate the small plants that form at the base, keeping as much root as possible, and pot each one in gritty, peat-free compost.
- Division: divide the rhizome in late spring or early summer, then keep the pieces warm and bright.
NC State also lists division of offsets. Small corms (cormels) often turn up in the root ball when repotting; potted shallowly in moist, gritty mix and kept warm, they can grow into new plants. Wear gloves, because the sap irritates skin (RHS).
For related plants, see our guides to Alocasia Polly, Alocasia Frydek and Alocasia macrorrhizos.
Is Alocasia Zebrina Toxic to Pets?
Yes. The ASPCA lists Alocasia as toxic to dogs, cats and horses because of insoluble calcium oxalates, causing mouth, tongue and lip irritation with pain and swelling, drooling, difficulty swallowing and vomiting. NC State rates alocasia toxicity as medium and notes contact dermatitis and eye injury from the sap. Keep it away from pets and children, wear gloves when handling it, and call your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 if a pet chews it. See our cat-safe plants list for alternatives.
Frequently Asked Questions
How often should I water Alocasia zebrina?
From April to October, when the top 5 cm (2 in) of compost is dry; in winter, only minimally (RHS). Overwatering, especially in winter, causes root rot.
Why are my Alocasia zebrina leaves turning yellow?
One or two leaves yellowing in autumn or winter is normal dormancy (RHS). Several leaves yellowing in wet compost point to overwatering; NC State notes that underwatering can yellow leaves too.
What does Alocasia zebrina winter care involve?
Water very little, keep it above 10°C (50°F), stop feeding, and keep it bright. Some leaf loss is normal and new growth returns in spring (RHS).
How big does Alocasia zebrina get?
The RHS gives 0.5 to 1 m tall and wide; NC State says up to 3 feet.
How do you propagate Alocasia zebrina?
Separate offsets in spring or divide the rhizome in late spring or early summer, potting pieces in gritty compost and keeping them warm and bright (RHS).
Is Alocasia zebrina toxic to cats?
Yes. The ASPCA lists alocasia as toxic to dogs, cats and horses because of insoluble calcium oxalates.