Xanthosoma violaceum
Xanthosoma violaceum
Xanthosoma violaceum
Xanthosoma violaceum
Xanthosoma violaceum
Xanthosoma violaceum

Xanthosoma violaceum (Tannia)

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Large growing species with beautiful, dark green leaves and purple to black petioles.
Xanthosoma violaceum
Xanthosoma violaceum (Tannia)
39,99€ EUR
Description

Tannia (Xanthosoma violaceum) originates from South America and is very widespread there. Its growth habit is very reminiscent of the elephant ear (Colocasia) from Asia. It grows to about 2 meters tall, and individual leaves reach about 80 cm long and 50 cm wide. The leaves are dark green and lightly dusted with white. They sit on purple to black leaf stalks, about 1 meter long, which are also covered with a white waxy layer. This layer, by the way, rubs off easily and does not regenerate! So don't rub it too much ;-)

Just like taro (Colocasia esculenta), the starchy stem of Xanthosoma violaceum is cooked and processed into flour, from which a variety of dishes can be prepared.

A small note on the name: Some time ago, the name Xanthosoma violaceum was synonymized with Xanthosoma sagittifolium, so it technically no longer exists. However, we continue to use it here for this form because it clearly differs from the uniformly green "normal" X. sagittifolium.

X. violaceum remains somewhat smaller (2 meters instead of 2.50 meters), has dark green (instead of light green) leaves, and white-dusted, purple to black leaf stalks (instead of glossy green).

You will receive a vigorous young plant, approx. 50 to 60 cm tall.
Care tips
Light & Location
Substrate & Repotting
Watering & Fertilizing

This Alocasia prefers soft water and should therefore be watered with distilled water, rainwater, or water from an osmosis system. It should never completely dry out, but how moist it likes to be strongly depends on the (substrate) temperature. In summer and at temperatures above 25°C, it can be kept consistently moist to wet. If it is kept as a houseplant (especially on a windowsill), it should be watered sparingly in winter, as the combination of colder temperatures and moisture weakens it and can lead to rot. We recommend placing it on a heating mat in winter, in which case it can continue to be watered normally.

This is a rather slow-growing species that doesn't need too much fertilizer. Fertilization should occur during the main growing season, from about May to September. If additional lighting is not provided, this plant will grow little to not at all from October to April, and does not need to be fertilized. No special fertilizer needs to be used. A normal complete fertilizer (N-P-K + trace elements) for houseplants is sufficient. We recommend halving the dosage indicated by the manufacturer (this corresponds to about 500 µS/cm conductivity of fertilizer).

When cared for under grow lights, it can be fertilized year-round.

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