Colocasia ‘Tossakan’

Colocasia ‘Tossakan’ is a bold and striking elephant ear variety known for its dark, almost black foliage with subtle green undertones and glossy texture. The leaves are large, heart-shaped, and slightly cupped, giving the plant a dramatic tropical presence. Its upright growth habit and sturdy dark stems make it an architectural standout, perfect for both indoor display and outdoor tropical gardens.

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Origin

‘Tossakan’ is a cultivated hybrid of Colocasia esculenta, developed for collectors who love bold, dark-leaved tropical plants. Like all Colocasias, it originates from Southeast Asia and India, where these plants grow naturally in warm, humid regions near rivers and wetlands. ‘Tossakan’ was selected for its dramatic foliage, strong upright growth, and easy-to-manage size relative to giant Colocasias.

What Makes ‘Tossakan’ Special

The leaves of ‘Tossakan’ are almost black with a subtle green sheen, creating a sleek, modern tropical look. Compared to other dark-leaved varieties like ‘Black Magic’ or ‘Kona Coffee’, Tossakan’s foliage has a slightly glossier, smoother surface and a very upright growth habit, making it compact and ideal for indoor containers or smaller outdoor beds. Its stems are sturdy and dark, complementing the rich leaf tones and emphasizing the architectural form of the plant.

Care

‘Tossakan’ thrives in moist, nutrient-rich soil. Keep the soil evenly damp but avoid waterlogging. Indoor plants should be watered deeply once or twice a week, depending on temperature and humidity. Outdoors, it enjoys consistently moist soil or shallow standing water. For indoor growth, a shallow tray with water and pebbles beneath the pot can help maintain humidity and support healthy foliage.

It prefers bright, indirect light but tolerates some gentle morning or late afternoon sun. Avoid harsh direct sunlight, which may scorch the leaves.

Repot every 1–2 years in a soil mix that retains moisture yet drains well, such as cocopeat, compost, and perlite. Fertilize every 2–3 weeks during the growing season to encourage bold, healthy leaf growth. Reduce feeding in cooler months when growth slows.

Temperature & Humidity

‘Tossakan’ loves warm temperatures (18–28°C) and high humidity. Indoor plants benefit from misting or a pebble tray. Outdoors, it thrives in partially shaded garden beds, patios, or near water features.

Pet and Reptile Safety

Like all Colocasias, ‘Tossakan’ is not safe for pets or humans due to calcium oxalate crystals in the leaves and stems. It is reptile safe for display in terrariums where animals do not consume the foliage.

Indoor or Outdoor Use

‘Tossakan’ can thrive both indoors and outdoors. Indoors, it makes a striking statement plant in bright, humid spaces. Outdoors, it prefers partial shade and consistently moist soil, making it perfect for shaded garden beds, patio containers, or near water features. It prefers consistently damp soil but does not require permanent standing water, although a water tray indoors helps maintain humidity.

Comparison to Other Dark-Leaved Colocasias

• Leaf Color: Almost black with subtle green undertones; Black Magic is darker and more matte, Kona Coffee is warmer brown.

• Visual Impact: Sleek, glossy, and architectural; ideal for modern tropical displays.

• Growth Habit: Upright, slightly more compact than some giant dark-leaved varieties, making it easier to manage indoors.

Summary Care

• Soil: Moist, nutrient-rich, well-draining

• Water: Keep evenly damp; water 1–2 times per week

• Light: Bright indirect light; gentle morning or late sun

• Temperature: 18–28°C

• Humidity: High

• Fertilizer: Every 2–3 weeks during growing season

• Pet Safe: ❌ No

• Reptile Safe: ✅ With caution

Final Thoughts

Colocasia ‘Tossakan’ is a tropical powerhouse that combines drama, elegance, and easy care. Its almost-black glossy leaves and upright growth habit make it ideal for indoor or outdoor spaces where a bold statement plant is needed. With consistent moisture, bright indirect light, and warm, humid conditions, Tossakan thrives and stands out beautifully alongside other Colocasias, offering collectors a sleek, modern tropical aesthetic that is both striking and manageable.