Agapanthus ‘Black Jack’ – Dramatic Dark-Stemmed Lily of the Nile with Striking Blue Flowers
Agapanthus ‘Black Jack’ is a bold and elegant perennial known for its deep violet-blue flower heads and striking dark stems. This modern variety combines architectural form with vibrant colour, producing tall stems topped with rounded clusters of trumpet-shaped blooms. Ideal for adding height and drama to borders, containers, and contemporary planting schemes, it provides a long-lasting summer display while remaining easy to grow and low maintenance.
Seasonal Beauty & Growth
Spring:
Fresh, strap-shaped green leaves emerge, forming neat clumps that create structure in borders and containers.
Summer:
Tall, dark stems rise above the foliage, carrying large, rounded heads of deep blue flowers that bloom from mid to late summer, attracting pollinators.
Autumn:
Foliage remains attractive as flowering fades, maintaining a tidy clump of greenery in the garden.
Winter:
Depending on conditions, foliage may remain semi-evergreen in milder climates, with dormant roots ready to regrow in spring.
Structure & Form
Growth Habit: Clump-forming perennial with upright flowering stems rising above neat mounds of foliage.
Height & Spread: Typically grows 70–90cm tall with a spread of around 40–60cm, making it perfect for borders and containers.
Foliage: Arching, strap-like green leaves that provide a lush base throughout the growing season.
Flowers: Rounded clusters of rich violet-blue trumpet-shaped flowers held on distinctive dark stems.
Stems: Deep purple to near-black stems create a dramatic contrast with the vivid blooms.
Perfect for Various Landscapes
Mixed Borders: Adds height, colour, and structure to perennial borders.
Containers & Patios: Excellent for large pots where the dark stems and vibrant flowers can be appreciated up close.
Coastal & Mediterranean Gardens: Thrives in sunny, free-draining positions.
Pollinator Gardens: Flowers attract bees and other beneficial insects during summer.
Growing Conditions & Care
Position: Best grown in full sun for the strongest flowering and colour.
Soil: Prefers well-drained soil, particularly important in winter to prevent root rot.
Hardiness: Moderately hardy; may benefit from winter protection in colder areas.
Maintenance: Low-maintenance; remove faded flowers and old foliage in early spring.
Watering: Water regularly during establishment and dry periods, especially for container-grown plants.
Why Choose Agapanthus ‘Black Jack’?
Striking Dark Stems: Deep purple-black stems provide dramatic contrast with vibrant blue flowers.
Long Summer Flowering: Produces impressive blooms through the height of summer.
Architectural Impact: Tall flower stems create vertical interest in borders and containers.
Low Maintenance: Easy to grow and reliable once established.
Ideal Plant Combinations
Pair with Ornamental Grasses such as Stipa or Pennisetum for a naturalistic planting style.
Combine with Lavender, Salvia, or Nepeta to create a drought-tolerant Mediterranean-style border.
Plant alongside silver-leaved plants like Artemisia or Santolina to highlight the deep blue flowers.
Does the height include the pot?
No, we measure from the top of the pot to the tip of the plant except for some of the instant planted screens, in this case it will be stated in the description
How long does delivery take?
Most orders are delivered in just a few days, Smaller items are often sent with Parcelforce on a next day service, Larger items should allow up to 10 days due to the size of the items they often have to be sent on our own transport.
Where will you leave my plants?
We will leave your order at the front of your property, Parcelforce may
leave your items in a safe place if you let us know, Pallet couriers
will require a flat hard surface to deliver to, no gravel or soil, a
driveway or parking spot would be best. Most importantly Deliveries by
pallet courier will require access for a large truck (bin lorry sized)
to get near the delivery point. Deliveries sent on our own transport may come in a small van or larger truck.
