Crinum asiaticum is also known as the Poison bulb, Spider Lily, Giant Crinum Lily, Grand Crinum Lily, Asiatic Poison bulb, Mangrove Lily, or St. John’s Lily. It is a tender bulbous perennial in the Amaryllis family, Amaryllidaceae. It is native to Indian Ocean Islands, East Asia, Tropical Asia, Australia, and the Pacific Islands. The name is from the Greek word krinon which means lily. Asiaticum refers to being native to Asia.
It produces large umbels of show flowers with slender petals. The flowers appear an erect stem. Crinum asiaticum can grow to 1m or 3ft approximately. The leaves are lanceolate, long, and strap-shaped. The flowers are composed of twenty or more spidery looking for flowers that are white. The flowers are fragrant and have thin, slender, protruding stamens with red filaments.
Plant Crinum asiaticum in the sun in consistently moist, organically-rich but well-drained soil. In very hot summers or climates provide some shade from the strong sun. Crinum asiaticum tolerates poor soil and salt. It is also drought-tolerant, rabbit, and deer-tolerant. It does well near ponds and streams. It is generally disease-free and pest-free. Though crickets, slugs could be a problem, and if you notice scorched leaves they might be exposed to too strong of sun exposure.
Cold winters can kill the leaves of this evergreen plant. It is better to protect the bulbs in cold winter climates or plant them in containers that could be moved indoors. The plants can grow to form larger colonies. Crinum asiaticum can benefit from regular fertilization. It usually takes about 4 years for it to start flowering. This plant is poisonous particularly the bulb.