Fertilising a Aubrieta 'Cascade Blue'
To promote the vibrant flowering of Aubrieta 'Cascade Blue', it is essential to fertilize effectively. For optimal health and bloom, apply a balanced slow-release fertilizer in early spring, just as the plants start actively growing. This will provide a steady supply of nutrients throughout the peak growth and flowering season. A second application of fertilizer can be beneficial after the first flush of flowers has faded, usually in late spring or early summer. This helps rejuvenate the foliage and can encourage a second round of blooming in this perennial.
Take care to distribute the fertilizer evenly around the plant, avoiding direct contact with the leaves and stems to prevent burn. Water thoroughly after applying to help the nutrients penetrate the soil and reach the roots. With proper fertilization, this species will reward you with a profusion of purple blooms and lush foliage.