Alocasia cuprea
Alocasia cuprea
Mirror Plant
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Description
Alocasia cuprea is a striking “jewel” aroid prized for its metallic, coppery leaves that shimmer in bright, indirect light. Compact yet dramatic, it thrives in warm, humid conditions and rewards attentive care with lush, sculptural foliage.
Common Names
Mirror PlantJewel AlocasiaCopper AlocasiaRed Secret Alocasia
Context
nativeRegion
Borneo (lowland tropical rainforest understory).
usdaZones
10–12 (outdoors in frost-free climates; otherwise grown indoors).
companionPlants
Calathea (Goeppertia) species, Philodendron hederaceum, Monstera adansonii, Ferns (e.g., Maidenhair), Fittonia, Peperomia
culturalUses
Ornamental foliage for interiorscapes and aroid collections; valued for its metallic leaf sheen and compact habit.
Care
Care Requirements
LightBright, indirect light with gentle morning sun or filtered light; avoid harsh direct rays to prevent scorch and fading.
WateringKeep evenly moist but never soggy. Let the top 1–2 inches of mix dry between waterings; reduce slightly in winter.
SoilAiry, fast-draining aroid mix (e.g., fine bark + perlite/pumice + coco coir/peat + a bit of charcoal). Slightly acidic to neutral.
FertilizerDuring spring–summer, feed monthly at 1/4–1/2 strength with a balanced liquid fertilizer or use a gentle slow‑release. Flush salts periodically.
HumidityHigh humidity (60–80%) is ideal. Use a humidifier or pebble tray and provide gentle airflow to deter disease.
TemperatureWarm: 65–85°F (18–29°C). Avoid cold drafts; growth stalls below ~60°F (15°C).
Growth & Life Cycle
HabitRhizomatous/corm-forming, clumping herbaceous perennial with upright petioles and broad, corrugated leaves.
Mature SizeTypically 18–24 in (45–60 cm) tall and wide; leaves can reach 8–12+ in (20–30 cm).
Growth RateModerate under warm, bright, humid conditions; slower in low light or cool temps.
BloomingOccasional spathe and spadix; not showy and rare indoors. Most energy goes to foliage.
DormancyMay semi-dorm in winter with cooler temps/short days; growth slows and watering should be reduced.
Propagation
MethodsDivision of rhizome/corms, Separating offsets/cormlets, Seed (rare, slow)
DifficultyModerate
Best SeasonSpring to early summer
Maintenance & Notes
PruningRemove yellowing or damaged leaves at the base; wipe leaves to remove dust and discourage pests.
RepottingRepot every 1–2 years in spring when roots fill the pot. Use a snug pot with ample drainage and refresh the airy mix.
Pests & DiseasesProne to spider mites, thrips, mealybugs, and aphids; treat early with insecticidal soap or horticultural oil. Overwatering can cause root rot; ensure airflow to deter fungal/bacterial leaf spots.
ToxicityToxic if ingested (calcium oxalate crystals); can irritate skin and mouth. Keep away from pets and children.
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