Fertilising a Astilbe chinensis 'Pumila'
To support the lush foliage and vibrant blooms of Astilbe chinensis 'Pumila', it is crucial to fertilize effectively. This species thrives when fed with a balanced, slow-release fertilizer applied in early spring as new growth appears. A second application should follow by early summer, coinciding with the onset of the flowering period. This ensures the plants have adequate nutrients to sustain their growth and flowering needs.
A granular, all-purpose fertilizer is suitable for this purpose. Apply it according to the manufacturer's instructions, being careful to avoid direct contact with the plant's leaves and stems to prevent burn. Adequate fertilization is particularly important for this variety, as it enhances the plant's vibrant display of purple and pink flowers, and fosters the development of its attractive green and red foliage throughout the growing season.