The African Spear Plant, or Sansevieria cylindrica, is a favored succulent, admired for its distinctive, architectural foliage. Its upright, cylindrical leaves provide a striking visual element in diverse settings. While primarily cultivated for its unique leaf structure, it can produce flowers under specific circumstances. Flowering is generally uncommon, especially for indoor specimens, making it a surprising event for plant enthusiasts.
Characteristics of African Spear Plant Flowers
When an African Spear Plant blooms, a tall, slender flower stalk typically emerges from its base, reaching a height of approximately 2 to 3 feet. Along this unbranched stem, numerous small, tubular, and often star-shaped flowers appear. These delicate blooms are typically white, cream, or pale green, sometimes tinged with pink, and are about one inch long.
These flowers have a sweet, strong fragrance, which is often more pronounced at night. The scent can be described as vanilla or jasmine-like. While not overtly showy, the presence of these fragrant blooms adds an unexpected dimension to the plant’s appeal.
Flowering is a rare occurrence, particularly for plants grown indoors. It typically signifies that the plant is mature and thriving in optimal conditions. While there isn’t a strict flowering season, blooms may appear in late winter or early spring, or sometimes during warmer months if the plant’s environmental needs are met. The flowering period usually lasts for about two weeks.
Encouraging African Spear Plant Flowering
Encouraging an African Spear Plant to flower depends on providing consistent care that mimics its natural habitat. Optimal light conditions are important, with the plant preferring bright, indirect sunlight. While it tolerates lower light, ample light can contribute to its overall vigor and potential to bloom. Some morning sun exposure can be beneficial, but intense afternoon sun should be avoided to prevent leaf scorching.
Proper watering techniques are crucial, as these succulents are susceptible to root rot if overwatered. The soil should be allowed to dry out completely between waterings, with less frequent watering needed during cooler months. A well-draining, sandy soil mix, such as those formulated for cacti or succulents, is ideal to prevent water accumulation around the roots. African Spear Plants prefer warm temperatures, generally between 65-85°F (18-29°C), and can tolerate average indoor humidity levels. Protecting them from cold drafts is also beneficial.
Light fertilization during the active growing season (spring through fall) can support flowering. A balanced, water-soluble fertilizer diluted to half strength, or a phosphorus-rich fertilizer, applied once or twice a month, can be effective. Fertilizing should be avoided during winter when the plant is dormant. Allowing the plant a cooler, drier dormancy period in winter, by reducing watering and ceasing fertilization, can sometimes help induce blooming by mimicking its natural cycles.
Post-Flowering Care
After the African Spear Plant completes its flowering cycle and blooms fade, prune the spent flower stalk. This can be done by cutting the stalk close to the base of the plant. Removing the stalk is primarily for aesthetic reasons, and it also prevents the plant from expending unnecessary energy on maintaining a dying structure.
Maintaining consistent care after flowering is important to ensure the plant recovers and remains healthy. Flowering is an energy-intensive process for the plant, so continued good practices are beneficial for its long-term well-being. Regular watering should resume as per the plant’s needs, allowing the soil to dry out between waterings. While re-flowering is not guaranteed, providing optimal light, temperature, and occasional light fertilization during the growing season will support the plant’s overall vitality.