Fertilising a Nepeta × faassenii
To ensure a profusion of vibrant blue flowers and lush foliage, fertilizing Nepeta × faassenii is essential. This species thrives when fertilized in early spring as new growth begins to emerge. A balanced, slow-release fertilizer, applied once at the onset of the growing season, will provide the necessary nutrients for sustained health and vigor. The application should be according to the manufacturer's instructions, and it is important to avoid over-fertilization, which can lead to excessive foliage at the expense of flowering.
Additionally, a mid-season top-up can be beneficial, especially if the plant appears lackluster or is not blooming as expected. The extra feed will invigorate the bushy, spreading habit of Nepeta × faassenii, supporting both its ornamental and growth needs throughout the active months.