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tillandsia Journal

cresting - Genus Tillandsia

1/2/2026

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PictureUnique and beautiful Crested form of Tillandsia ionantha



​Cresting—also called fasciation or cristation—is a rare growth abnormality where the plant’s growing tip becomes elongated or flattened, instead of remaining a single point. This causes structures like stems, leaves, or even flowers to grow in a fan-shaped, fused, or wavy form rather than their normal shape. In Bromeliads and Tillandsias, this often affects the inflorescence, creating wide, layered, and highly ornamental bloom structures.
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In this example, (Tillandsia ionantha) the flowering meristem has flattened and multiplied, producing a dense, crested bloom packed with overlapping bracts. The result is the vibrant, coral-like crest, you see many growing points fused together rather than one central spike. This is a textbook case of floral fasciation.

Cresting can occur due to genetic mutation, early mechanical injury, hormonal imbalance, or environmental stress. In my experience cresting appears in Tillandsia hybrids more than species. Probably a result of the mixing of genetics. One species that develops cresting more frequently is Tillandsia ionantha. Since T. ionantha is widespread, its genetics is more diverse than more restricted species. Cresting is not contagious and rarely harms the plant, though the affected tissue may be more delicate and the growth pattern unpredictable. Offsets may grow normally or occasionally repeat the cresting trait.
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Collectors value crested plants because each one is entirely unique, and the effect is visually dramatic. Care remains the same—simply avoid damaging the crest. This crested T.ionantha is an especially striking example, showing intense pigmentation and complex growth that makes it highly ornamental and truly one-of-a-kind.

PictureTillandsia Fat Boy, 'Crested'






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​Tillandsia Fat Boy, a Koide hybrid of Tillandsia streptophylla X roseoscapa. A few of these developed pronounced cresting creating a beautiful large clump.
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PictureTillandsia Amazing Grace 'Crested'



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​Tillandsia Amazing Grace, a Dimmitt hybrid of Tillandsia roseoscapa X bulbosa.  Several of these have developed cresting which grow into interesting shaped clumps.

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    Pamela Koide HyattPamela Koide Hyatt
    Horticulturalist & Explorer Specializing in the Genus Tillandsia.

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© Pamela Koide Hyatt , Bird Rock Tropicals
Photos from cm195902, ggallice