1 / 4Key characteristics
- Family
- Amaryllidaceae
- Height
- 24 to 36 inches
- Width
- 18 to 24 inches
- Flower color
- Deep blue, funnel-shaped blooms
- Foliage color
- Strappy, dark green leaves
- Bloom time
- Summer
- Light
- Full sun to partial shade
- Water
- Medium
- Maintenance
- Low; occasional trimming of dead flowers and leaves
- Growing zone
- USDA zones 7–10
- Wildlife
- Bees and butterflies
Perennials
Agapanthus inapertus ssp. pendulus 'Graskop'
Grassland Lily of the Nile
Agapanthus inapertus ssp. pendulus 'Graskop' features elegant, pendulous clusters of tubular, deep blue flowers that bloom in late summer to early fall. These flowers dangle delicately from long, arching stems, creating a graceful and soft appearance in the landscape. The plant's lush, narrow, strap-like leaves provide a lush backdrop to the blooms, enhancing its ornamental appeal.
Originating from the highland regions of South Africa, particularly near Graskop in Mpumalanga, this variety of Agapanthus thrives in well-drained areas with warm temperatures.
Works well in
- Borders
- Cottage Gardens
- Pollinator Gardens
- Cut Flower Gardens
Companion plants
Foxgloves · Bergenias · Sedums · Columbines · Lungworts · Daylilies
Design tip
The long summer show pairs well with plants that peak earlier, keeping one area interesting for months. It takes sun or light shade, which makes it useful along the changing light of a bed edge or a partly shaded border.
More perennials

Amsonia orientalis 'Blue Ice'
Blue Ice Bluestar
Blooms pale periwinkle blue
Full sun to partial shade

Baptisia Australis
Blue False Indigo
Blooms indigo-blue
Full sun; tolerates light shade

Agapanthus campanulatus 'Bressingham Blue'
Bressingham Blue Lily of the Nile
Blooms deep blue flowers arranged in large umbels
Full sun to partial shade

Amsonia ciliata 'Halfway to Arkansas'
Halfway to Arkansas Fringed Bluestar
Blooms pale blue
Full sun to part shade