Fertilising a Carex foliosissima 'Irish Green'
To maintain the lush greenery of Carex foliosissima 'Irish Green', a balanced approach to fertilization is recommended. Given its moderate nutritional needs, an application of a general-purpose fertilizer in early spring can encourage vigorous foliage and support its growth through the flowering season. As an evergreen species, providing nutrients at this time helps reinforce its vitality as it prepares for the active growing months.
With its ability to thrive in a range of soil types, 'Irish Green' benefits from well-drained conditions coupled with fertilization that ensures a steady supply of essential nutrients. A second light application of fertilizer may be beneficial in mid-summer to sustain its bushy and spreading growth habit, especially if the plant is located in a container where nutrients can be depleted more rapidly. Always ensure that the fertilizer is applied according to package instructions to avoid over-fertilization, which can be detrimental to the plant's health.