Growing 30–90 centimeters tall, the Shell Flower features square stems and lance-shaped, serrated leaves that create a lush, green backdrop. Its most iconic feature is the inflorescence: dense whorls of tubular, papery bracts that form a spiral around the stem, resembling stacked seashells or tiny green bells. These bracts, ranging from pale lime to vibrant emerald, surround small, white flowers that peek out from their centers. The entire structure has a velvety texture, adding depth to its visual allure. Blooming from summer to early autumn, the plant’s unique form and rare green color make it a standout in both gardens and floral arrangements.

In folklore, the Shell Flower is associated with luck and prosperity, earning its nickname "Bells of Ireland" from a legend that its green hue symbolizes the Emerald Isle’s lush landscapes. In Victorian floriography, it represented gratitude and humility, often used in bouquets to convey silent messages. Today, it is highly valued in cut flower markets for its long vase life (up to two weeks) and ability to complement both vibrant blooms and minimalist designs. The plant is easy to cultivate, thriving in full sun with well-drained soil, making it a popular choice for cottage gardens, borders, or container plantings. Though not endangered, its unique beauty has inspired conservation efforts in some native regions, ensuring this botanical treasure continues to enchant generations with its shell-like elegance.