Hymenocallis festalis Sulphur Queen - Spider Lily

The 'Sulphur Queen' Ismene, also known as Hymenocallis festalis, is a rare perennial bulb in our latitudes. Its beautiful trumpet-shaped flowers initially resemble daffodils or lilies, hence their nicknames. But their lovely yellow cups are streaked with fine green tongues and surrounded by a row of slender petals that extend beyond them, giving them a much more exotic appearance. With a subtly spicy fragrance, this tender plant that blooms in summer often prefers to be grown in a pot. This way, you can keep it warm, close to your eyes and nose.

'Sulphur Queen' is a cross between Hymenocallis amancaes and Hymenocallis narcissiflora. It is also known as the Peruvian Daffodil. This name tells us about the genus's origins. Hymenocallis actually come from Central and South America. They like well-drained soils that do not dry out and remain moist, but also do not retain excess water. They prefer rich soils and warm, sunny exposures. In most of our regions, growing them in a pot is recommended, as this tender plant cannot tolerate frost. If you want to plant it in a bed, you will need to remove the bulb in autumn and store it.

This 'Sulphur Queen' has thick, glossy, lanceolate leaves. They are rather wide (3-4 cm (1-2in)), stand up to 30-40 cm (12-16in) tall, and encircle the base of the flower stalks. These stalks are made up of large cylindrical stems that can reach 50 to 60 cm (20 to 24in) in height, topped with 2 to 3 flowers that bloom from June onwards (depending on temperatures). The trumpet-shaped cup is actually made up of fused petaloid stamens. They are fringed at the tip, with a beautiful sulphur yellow color and streaked with green filaments that shoot out from a heart of the same shade. All of this is further enhanced by a row of slender petals that extend beyond in the background, giving it a dynamic fireworks-like appearance. Very elegant, they can be used to create vibrant bouquets with a delightful fragrance.

The Hymenocallis festalis 'Sulphur Queen' is a delicate plant that is best monitored and placed in a conservatory or sunny courtyard. Among cacti, succulents, and other tender plants, it will bring a lovely light and a welcome touch of exoticism to our latitudes.