Tillandsia ionantha belongs to the Bromeliaceae family native to Central America and is found from Mexico to Nicaragua. This epiphyte is well adapted to its rather unique ecological niche, growing attached to the high branches of trees where it receives exposure to the sunlight that the canopy of trees shades from the forest floor below. It is a small stem less plant, often found growing in clumps large enough to encircle a tree branch. Tillandsia ionantha form a bulky rosette, standing like an aloe, 8 to 10 cm in height.
Its leaves are colored from gray to red. They are triangular, tough, superimposed and especially erect. The lower face is scaly and grayish. Before flowering, the end of the central leaves (bracts) turns to a stunning pink. At the time of flowering, the violets flowers with long stamens like two yellow bayonets, appears in the middle of the plant. When grown in bright light the entire plant quickly turns a fiery crimson color, with grape-violet flowers emerging from the center.
The culture of the tillandsia in a vegetative state is rather easy if the humidity of the atmosphere is high. However the flowering of the plant is more difficult to obtain. Moreover, the plant decays slowly and dies a few years after its flowering. The rejections which appear at the base will flower in their turn a few years later. Recover the rejections when the plant mother is desiccated and place them in small pots.
Hardiness zones: 9-11 (-5°C/25°F, 4°C/40°F) in winter. The tillandsia requires a sharp light in summer and sun in winter. Place it close to a window directed at the west in summer and the south in winter. The ideal temperature in summer is 22 to 24 ºC. In winter the temperature can be cooler (18 to 16 ºC) but it should not go lower than 13 ºC. The tillandsia is demanding on the level of moisture. Keep the water content of the air high. If you do not have a humidifier, regularly vaporize the plant with water at room temperature. If you cultivate it in a pot, place it on a wet gravel bed. Eliminate the yellowed leaves, cut the inflorescence after flowering and vaporize the foliage regularly.
This plant absorbs water mainly by its leaves. Regularly vaporize the plant with water at ambient temperature. You can plunge the plant with its support in water at ambient temperature (add a low dose of manure) during one hour, then let drain. If the plant is cultivated in a pot, sprinkle moderately to humidify the substrate, and let drain. Let the substrate dry slightly between watering, but never completely. In winter, when the temperature gets cooler, reduce watering and vaporization to let the soil dry for a short period. The tillandsia does not tolerate mineral salt very well. For the period of growth, fertilize once a month by vaporizing the foliage with a solution of the 20-20-20 diluted by half.
The tillandsia develops few roots. This is why it is often fixed on pieces of wood or plates of bark using wire, with the roots surrounded by foam of sphagnum. Its installation can take place anytime in the year, except during flowering. The tillandsia can also be cultivated out of a pot if the substrate is porous and drains well. In this case, you can use fibers of Osmond, sphagnum moss or sphagnum peat, and pearlite like substrate, and gravel for the bottom of the pot. This plant once out of pot should almost never be repotted.