Black Swan Colocasoa

Black Swan Colocasoa Care

Colocasia 'black Swan'

What is the plant

Colocasia 'Black Swan' doesn't grow to quite the massive proportions of 'Thailand Giant', but the leaves are far larger than other colored Colocasias. Given warmth, rich soil, and lots of water, 'Black Swan' Elephant Ear will quickly grow into an upright, arching clump to 6 feet tall and 5-7 feet across.

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Lighting

Full Sun

Hardiness zone

max 8a

Difficulty

Easy

Toxicity

Poisonous

How to Care for the Plant

Water
Elephant ears are water-loving plants. They need at least moist, organically rich soil, but constantly moist soil is preferable, especially in warm months. You can decrease your watering schedule for the plants in winter, when they don't need as much water as they do other times of the year.
Pruning
Cutting back an elephant ear is easy, but timing and good pruning habits are essential to maintain a healthy, thriving plant for years. Cut back an elephant ear plant two or three days after the first killing frost when the foliage turns brown.
Fertilizer
All elephant ear varieties are considered heavy-feeders, requiring rich, fertile, slightly acidic soil. Fertilize your plants once a month with a slow-release, water-soluble 20-20-20 fertilizer. Alternately, Burpee recommends top dressing with organic compost.

Disease diagnosis

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Sunlight
Full sun is not ideal for most—they grow best in bright but indirect sunlight. Too much sunlight can burn the leaves, while too little sunlight can cause yellowing.
Soil
Elephant ears need rich soil that is moist (not saturated), but well-drained. Most don't like wet feet, though a few are tolerant of wet conditions—like the big-leaved colocasias you might see in water gardens.
Temperature
Elephant ears will only truly thrive in warmer areas similar to their native humid climates of Southeast Asia, and with daytime temperatures of 70 to 85F, and nights no lower than 60F. They can be grown in cooler areas, but will need to be replanted each year.

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Container
Choose a container that's at least 18 inches wide and 16 inches deep for Colocasia varieties, or 36 inches wide for the larger Alocasia varieties. ... The container should be made of a nonporous material, such as plastic, fiberglass or glazed clay, rather than plain terra cotta.
Additional
Alocasia is a very poisonous plant; the leaves contain insoluble oxalate crystals. A human or pet chewing or biting into a leaf releases the crystals which can cause swelling and irritation of the mouth and GI tract.
Popularity
61 people already have this plant 53 people have added this plant to their wishlists