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Agapanthus ‘Blackjack’ (PBR)
(African Lily)


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Great for wildlife
July - September
80cm x 70cm
Award Winner
Half Hardy

Agapanthus ‘Blackjack’ holds a special place in our collection, chosen for its evergreen elegance and impactful presence. This award-winning perennial, adorned with striking purple-black blooms, adds a bold and architectural flair to your garden. The coveted RHS Plants for Pollinators award underlines its ecological significance showcasing its impressive breeding. ‘Blackjack’ not only provides a vibrant display but also aligns with our commitment to fostering pollinator-friendly environments, making it a cherished addition to our range.

Additional information

Plant Type
Flower Colour
Flowering Period
Fully Grown Size
Garden Position
Light Level
RHS Plants For Pollinators
RHS Garden Merit Award
Pot Size
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Agapanthus Blackjack is a brand new variety of Agapanthus that has been bred to bear flowers of a very deep purple colour, that are inky and almost black when in bud which creates a stunning effect even before they've started flowering. These flowers are held on stems up to around 60cm tall, protruding from foliage composed of long, thin, evergreen leaves. In addition to this perennial's stunning looks, it's also very low maintenance and drought tolerant, and are also not typically prone to any pests or disease meaning they can continue to show their impressive floral displays without any hassle. Agapanthus look great potted, which is also good for their growth as they produce more flowers when their roots are constricted in a container, so if you've got an empty spot on the patio in need of some striking colour then this variety may be perfect for you. If longevity is what you're looking for then Agapanthus may also be a great option as they come back year after year. This particular variety is hardy down to -10 degrees Celsius and so will continue to impress in it's subsequent years!

Planting Conditions

For optimal growth of Agapanthus 'Blackjack,' plant in moist, well-drained soil consisting of sand, loam, clay, or chalk. The plant is versatile regarding soil ph. Choose a sheltered location with at least six hours of sunlight daily. Whether in pots or flower beds, ensure the soil doesn't become waterlogged. When planting in containers, the restricted root growth enhances performance and encourages more blooms. Water well during dry periods and avoid waterlogging. This adaptable Agapanthus variety establishes well in various conditions, rewarding your garden with its striking foliage and vibrant blooms.

Watering & Feeding

Agapanthus 'Blackjack' benefits from regular watering during dry spells, maintaining soil moisture without waterlogging. For potted plants, ensure consistent but not excessive watering. During the growing season, feed every 4-6 weeks with a balanced, water-soluble fertiliser to support healthy growth and flowering. Adjust watering frequency based on weather conditions, allowing the soil to dry between waterings. This approach helps prevent root rot and encourages the plant's resilience. With attentive watering and modest feeding, 'Blackjack' thrives, showcasing its elegant blooms and contributing to a vibrant garden display.

General Care

Agapanthus 'Blackjack' demands minimal care for a vibrant display. Little water, disease resistance, and a lack of extensive pest issues simplify maintenance. Shield from frost in Winter, especially if outdoors. When planting, dig a hole twice the pot's size, fill with compost, and mulch with a 3-inch layer. Ensure the soil stays moist during establishment. Prune dead foliage at ground level, promoting new growth. With its low-maintenance nature, 'Blackjack' proves an excellent choice for gardens, providing elegance without the need for intensive care or attention.