Drummond’s Sundrops (Calylophus berlandieri) is a native perennial groundcover cherished for its cheerful, bright yellow flowers that resemble drops of sunshine. These blooms appear from early spring through summer, adding vibrant color to landscapes. The plant forms low, rounded clumps of wiry stems and evergreen foliage, making it an excellent choice for rock gardens, borders, or xeriscapes.
History
Named after French-Swiss botanist Jean Louis Berlandier, who collected plants in Texas and northern Mexico during the 19th century, Calylophus berlandieri is native to the southwestern United States and northern Mexico. Its ability to thrive in arid conditions has made it a popular choice for water-wise gardening.
Growing and Maintenance Tips
- Light: Thrives in full sun, which encourages abundant flowering.
- Soil prefers well-draining soil and adapts to sandy, rocky, or limestone-based soils. To improve drainage, amend clay soil with grit or decomposed granite.
- Watering: Once established, it requires minimal watering. Occasional watering during extreme drought can help maintain its appearance.
- Temperature: Hardy in USDA zones 5–10, it tolerates heat, drought, and mild frost.
- Fertilizer: Generally does not require fertilization. If needed, apply a low-nitrogen fertilizer in early spring.
- Pruning: Cut back wiry stems in late winter to encourage fresh growth and maintain a tidy appearance.
- Propagation: Spreads naturally and can be propagated through division or seeds.
Compact Calylophus is a resilient and low-maintenance plant that adds year-round beauty to gardens. Its ability to thrive in challenging conditions makes it a valuable addition to native and xeriscape gardens.