Fertilising a Campanula persicifolia 'Coerulea'
The Campanula persicifolia 'Coerulea' thrives with periodic fertilization, which bolsters its upright growth habit and enriches the vibrancy of its blue and purple flowers. To optimize the health and flowering potential of this species, apply a balanced, slow-release fertilizer in early spring as new growth appears. A second application can be beneficial at the onset of the flowering period in June, ensuring the plant has ample nutrients to sustain blooming through August. It is essential to incorporate the fertilizer into the humus-rich soil surrounding the plant, taking care not to disturb the root system. Regular fertilization, coupled with consistent watering—ensuring the root ball is fully submerged—will support robust growth and a profusion of blooms, making it a standout in any border or group planting arrangement.