Aglaonema costatum
Aglaonema costatum
Spotted Chinese Evergreen
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Description
Aglaonema costatum, the spotted Chinese evergreen, is a compact, shade-loving aroid with deep green leaves dusted in white speckles and a bold white midrib. It’s forgiving, stylish, and perfect for low-light corners or offices, thriving with modest care and steady warmth.
Common Names
Spotted Chinese EvergreenPainted Drop TongueSpotted Aglaonema
Context
nativeRegion
Tropical Southeast Asia (Malaysia, Thailand, Borneo, Philippines).
usdaZones
10–12 (outdoors in frost-free climates only).
companionPlants
Aspidistra elatior (Cast Iron Plant), Spathiphyllum (Peace Lily), Zamioculcas zamiifolia (ZZ Plant), Epipremnum aureum (Pothos), Philodendron hederaceum, Dracaena trifasciata (Snake Plant)
culturalUses
Widely grown as an indoor ornamental for low-light spaces; often used in offices and lobbies. In some feng shui traditions, Chinese evergreens are associated with good fortune and prosperity.
Care
Care Requirements
LightLow to bright indirect light; avoid harsh direct sun which can scorch leaves.
WateringWater when the top 1–2 inches (2.5–5 cm) of soil is dry. Keep evenly moist but never soggy; reduce in winter.
SoilWell-draining aroid mix: peat/coir with perlite and fine bark; pot with drainage.
FertilizerBalanced, diluted (1/4–1/2 strength) every 4–6 weeks in spring–summer; none or minimal in winter.
HumidityModerate to high (50–70%). Tolerates average indoor humidity; higher humidity improves foliage.
TemperatureWarm: 65–85°F (18–29°C). Avoid cold drafts and temps below 60°F (16°C).
Growth & Life Cycle
HabitEvergreen, clumping herbaceous perennial with short stems from a rhizomatous base.
Mature Size12–24 in tall and wide (30–60 cm).
Growth RateSlow to moderate grower.
BloomingOccasional spadix with greenish-white spathe; flowers are modest and may be followed by small berries.
DormancyNo true dormancy; growth slows in cooler, darker months.
Propagation
MethodsDivision, Stem cuttings, Air layering, Seed (rare)
DifficultyEasy to moderate
Best SeasonSpring to early summer
Maintenance & Notes
PruningRemove yellowing or damaged leaves and spent inflorescences to keep plants tidy and focus energy on foliage.
RepottingEvery 1–2 years or when rootbound; step up one pot size and refresh airy mix. Likes slightly snug pots.
Pests & DiseasesWatch for spider mites, mealybugs, and scale; treat early with insecticidal soap or neem. Overwatering causes root rot; fluoridated or hard water may cause leaf tip burn.
ToxicityToxic if ingested (calcium oxalate crystals). Can cause mouth irritation; keep away from pets and children.
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