Description
Agapanthus Black Jack
Agapanthus Black Jack is an outstanding evergreen agapanthus producing dramatic deep purple-black buds that open into rich dark violet flowers throughout summer. This award-winning variety forms attractive clumps of lush green strap-shaped foliage and creates a bold display in borders, patio containers and contemporary garden designs. Reaching approximately 60–80cm in height, it combines exceptional flower colour with reliable garden performance. Agapanthus Black Jack was named RHS Chelsea Flower Show Plant of the Year 2023, highlighting its exceptional ornamental value and garden appeal.
Why Choose This Award-Winning Variety?
Few agapanthus varieties can match the striking flower colour of this remarkable plant. The almost black buds provide interest before the flowers open, while the densely packed flower heads deliver weeks of colour. In addition, the long flowering period and occasional repeat blooming help extend the display well into the season. Pollinators are also attracted to the blooms, bringing extra life to the garden.
Growing Agapanthus Black Jack
For best results, plant Agapanthus Black Jack in a sunny position with fertile, well-drained soil. During establishment, regular watering will encourage strong root growth. However, once mature, plants become tolerant of heat and short periods of drought. Furthermore, a spring application of balanced fertiliser will support healthy foliage and abundant flowering. This variety performs particularly well in containers where its dramatic flowers can be fully appreciated.
Perfect for Borders and Containers
Whether used as a feature plant or incorporated into mixed perennial borders, this variety provides strong architectural interest. Meanwhile, the dark flower heads contrast beautifully with silver foliage plants, ornamental grasses and lighter flowering perennials. Because of its compact habit and evergreen foliage, it remains attractive even when not in flower.
Care and Maintenance
Maintenance is straightforward and suitable for gardeners of all experience levels. Remove faded flower stems after blooming to keep plants looking tidy. Additionally, protect container-grown plants from severe winter frosts where necessary. With minimal care, plants will provide years of reliable performance and striking summer colour.
Related Plants and Further Information
Browse our full Agapanthus collection:
https://www.mailorderplants4me.com/product-category/agapanthus/
For expert agapanthus growing advice visit the Royal Horticultural Society:
https://www.rhs.org.uk/plants/agapanthus/growing-guide
Key Features
- RHS Chelsea Flower Show Plant of the Year 2023
- Deep purple-black buds and dark violet flowers
- Evergreen strap-shaped foliage
- Long flowering season with repeat blooming potential
- Ideal for borders and patio containers
- Attractive to bees and pollinators
- Heat and drought tolerant once established
- Easy to grow and maintain












There are no reviews yet.