Cardamine bulbosa, commonly known as Bulbous Bittercress, is a perennial herbaceous plant. It typically grows to a height of 15 to 45 cm (6 to 18 inches). The plant is characterized by its small, white flowers that bloom in clusters during the spring. The flowers have four petals each and are often found in moist, shaded environments. The leaves are basal, with a rounded or heart-shaped appearance, and are slightly toothed at the edges. The plant derives its common name from its bulb-like corms found underground, which store nutrients.
Known Range
Cardamine bulbosa is native to North America. It is commonly found in the eastern and central United States and parts of southeastern Canada. The plant thrives in wetland areas, such as floodplain forests, swamps, and along streams and rivers. It is particularly prevalent in regions with moist, rich soils.
Care Requirements
Light: Prefers partial shade to full shade. It can tolerate some sunlight, especially in the early morning or late afternoon.
Soil: Thrives in moist, rich, well-drained soils. The soil should be kept consistently damp but not waterlogged.
Water: Requires regular watering, especially during dry periods. The soil should remain moist to mimic its natural wetland habitat.
Temperature: Hardy in USDA zones 4-8. It can tolerate a range of temperatures but prefers cool to moderate climates.
Fertilization: Generally, it does not require heavy fertilization. A light application of a balanced, slow-release fertilizer in early spring can promote growth.
Propagation: Can be propagated by seed or by dividing the corms. Seeds should be sown in a cold frame in the fall. Corms can be divided and replanted in the spring or fall.
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