Fertilising a Carex buchananii
To maintain the robust health and distinctive coloration of Carex buchananii, it is advised to fertilize moderately. A balanced, slow-release fertilizer applied in early spring can support vigorous growth and the maintenance of its striking brown and orange foliage throughout the seasons. Care must be taken to ensure the granules are evenly distributed around the base of the plant, avoiding direct contact with the foliage to prevent any potential burn.
Given its average water requirements and lack of drought resistance, it is essential to water the plant after fertilizing, helping to dissolve the nutrients and carry them down to the roots. This will aid in establishing a strong root system that supports the plant's clump-forming growth habit, ensuring it thrives in its sunny location and contributes to the aesthetic of borders and group plantings.