1 / 4Key characteristics
- Family
- Amaryllidaceae
- Height
- 3 to 5 feet
- Width
- 2 to 3 feet
- Flower color
- Dark blue to purple flowers
- Foliage color
- Dark green, strap-like leaves
- Bloom time
- Summer
- Light
- Full sun to partial shade
- Water
- Medium
- Maintenance
- Low; occasional deadheading and trimming of foliage
- Growing zone
- USDA zones 7–10
- Wildlife
- Bees and butterflies
Perennials
Agapanthus 'Storm Cloud'
Storm Cloud Lily of the Nile
Agapanthus 'Storm Cloud' is a variety known for its bold, dark blue flowers that appear in large, globe-like clusters. The blooms, which emerge in late summer, create a dramatic contrast against the plant's rich green, strap-shaped leaves. The flower heads are compact and dense, offering an eye-catching display that adds depth and color to the garden throughout the growing season.
This cultivar originates from the hybridization of various Agapanthus species, with a focus on creating a more compact and vigorous plant suited for garden settings.
Works well in
- Borders
- Cottage Gardens
- Pollinator Gardens
- Cut Flower Gardens
Companion plants
Sedums · Columbines · Lungworts · Daylilies · Japanese anemones · Bleeding hearts
Design tip
The long summer show pairs well with plants that peak earlier, keeping one area interesting for months. Because it is easy about light, use it to carry a planting from a sunny end of the bed into the shadier side.
Where to see it
This plant can be seen at the Center for Urban Horticulture.
More perennials

Tradescantia virginiana
Virginia Spiderwort
Blooms blue to violet purple with yellow stamens
Full sun to partial shade

Salvia x sylvestris 'May Night'
May Night Sage
Blooms deep violet-blue flower spikes with darker purple calyces
Full sun

Delphinium elatum 'Guardian Blue'
Guardian Blue Larkspur
Blooms double, vivid blue flowers with purple overtones and white centers ("bees")
Full sun

Centaurea montana
Perennial Cornflower
Blooms blue, purple, or pink
Full sun to part shade