Description
Agapanthus Delft Blue – Deciduous African Lily
Agapanthus Delft Blue is a beautiful deciduous African Lily renowned for its large rounded flower heads filled with rich blue trumpet-shaped blooms. Rising on sturdy upright stems above neat clumps of green strap-like foliage, the flowers create a vibrant display of colour throughout the summer months. The intense blue tones bring depth and contrast to planting schemes, making this variety an excellent choice for borders, patio containers and mixed perennial displays.
Growing to approximately 90–120cm in height, Agapanthus Delft Blue combines elegant beauty with reliable garden performance. The impressive flower heads stand proudly above the foliage, creating a striking architectural effect while attracting bees and other beneficial pollinators. Its long flowering season and strong visual impact make it suitable for both contemporary and traditional garden settings. The blooms also make excellent cut flowers, adding colour and structure to indoor arrangements.
Key Features of Agapanthus Delft Blue
- Deciduous Agapanthus variety
- Large rich blue flower heads
- Strong upright flower stems
- Flowers from July to September
- Excellent for borders and containers
- Attractive to bees and pollinators
- Ideal for cut flower arrangements
- Easy-to-grow perennial
Growing Agapanthus Delft Blue
Agapanthus Delft Blue thrives in a sunny position with fertile, well-drained soil. Full sun encourages abundant flowering and helps produce strong stems capable of supporting the large flower heads. Once established, plants are relatively drought tolerant, although regular watering during prolonged dry periods will encourage the most impressive floral display.
Container-grown specimens perform exceptionally well and are ideal for patios and terraces where the vibrant flowers can be appreciated at close range. As a deciduous variety, the foliage naturally dies back in autumn before fresh growth emerges in spring. Remove spent flower stems after flowering and apply a winter mulch in colder regions to help protect the crown and encourage vigorous regrowth the following season.
- Position: Full sun
- Soil: Fertile, well-drained soil
- Height: 90–120cm
- Spread: 45–60cm
- Flowering Period: July to September
- Foliage: Deciduous
- Hardiness: Hardy in most UK gardens
Related Plants and Further Information
Browse our full range of Agapanthus plants to discover more varieties suitable for borders, containers and patio displays.
For additional cultivation advice, planting tips and ongoing care information, visit the Royal Horticultural Society Agapanthus Growing Guide.
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