Lily of the Nile 'Cosmic Blue'
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WorryFree Promise
Compactness
Disease Resistance
Insect Resistance
Special Features
Kid/Pet Friendly
Attracts Wildlife
Low Maintenance
Great for Small Spaces
Good for Containers
Lily of the Nile 'Cosmic Blue'
Agapanthus 'Cosmic Blue' PPAF
Perennial
Height 32-34"
Spread 22-28"
Description
Agapanthus 'Cosmic Blue' is a non-invasive perennial delivering high-impact style with minimal stress. In mid-summer, dark blue buds open into rich indigo clusters with white centers, creating a sophisticated bicolor look over glaucous blue-green foliage. This compact, worry-free variety requires no pruning and naturally resists pests and disease. Thriving in full sun, it is perfect for borders or containers, offering reliable color with almost no effort.
Plant Care
Water
Water regularly; allow soil to dry down between watering
Fertilizer
Use a balanced fertilizer like 10-10-10 or a formula slightly higher in phosphorus and potassium (potash) to promote strong bud formation and vibrant indigo color. Do not use fertilizers with high nitrogen as this encourages lush green leaves at the expense of those stunning blue flowers.Apply your first dose in early spring as soon as new growth starts emerging from the ground. Follow up with a second application mid-summer to support the peak blooming period.
Pruning
Because it grows in a naturally tidy, compact mound, no pruning is necessary. Once the indigo flowers fade, simply cut the flower stalks off at the base. This keeps the plant looking neat and prevents it from wasting energy on seed production.
Seasons of Interest
Spring
The plant emerges with fresh, "glaucous" blue-green foliage that quickly forms a tidy, architectural mound.
Summer
Dark blue buds appear in mid-summer, opening into large, globular clusters of rich indigo flowers with white centers.
Fall
As flowers fade, the sturdy stems can be left to showcase decorative seedheads, which add structural interest to the autumn garden.
