Set of 3 or 6 Delphinium Pacific Giants Black Knight Hardy Perennial Plants, Tall Cottage Garden Flowers, Outdoor Garden Ready, 1 Litre Root-Ball

Add height and drama to your garden with this stunning Delphinium Pacific Giants 'Black Knight'. Renowned for its towering spires of deep violet-blue, semi-double flowers with contrasting dark centres (known as the \"bee\"), Black Knight is one of the most...
£20.99
£20.99
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Plants For All Seasons

Set of 3 or 6 Delphinium Pacific Giants Black Knight Hardy Perennial Plants, Tall Cottage Garden Flowers, Outdoor Garden Ready, 1 Litre Root-Ball

£20.99

Set of 3 or 6 Delphinium Pacific Giants Black Knight Hardy Perennial Plants, Tall Cottage Garden Flowers, Outdoor Garden Ready, 1 Litre Root-Ball

£20.99
PACK OF:: 3 Plants
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Add height and drama to your garden with this stunning Delphinium Pacific Giants 'Black Knight'. Renowned for its towering spires of deep violet-blue, semi-double flowers with contrasting dark centres (known as the \"bee\"), Black Knight is one of the most striking varieties in the celebrated Pacific Giants series. These garden-ready plants are supplied as a set of three in 1Ltr root-balls, well-established and ready to plant straight into borders or containers.


A classic cottage garden favourite, Delphinium 'Black Knight' produces magnificent, densely packed flower spikes that create a bold vertical accent in herbaceous borders and mixed plantings. The rich, dark blooms are highly valued for cut flower arrangements and are a magnet for bees and other pollinating insects. As a fully hardy herbaceous perennial, it will die back over winter and return reliably each spring with vigorous new growth.


What's Included:

  • 3 or 6 x Delphinium Pacific Giants 'Black Knight' plants

  • Supplied in 1Ltr root-balls, garden ready

Planting and Care Tips:

  • Plant in a sheltered position in fertile, well-drained soil that retains moisture

  • Prefers full sun but will tolerate light partial shade

  • Stake tall flower spikes to protect them from wind damage

  • After the first flush of flowers, cut spent stems back to encourage a second bloom later in the season

  • Apply a mulch of well-rotted compost in spring to encourage strong growth

  • Water regularly during dry spells, particularly while establishing

Cultural Information:

  • Botanical Name: Delphinium elatum 'Black Knight' (Pacific Giants Series)

  • Common Names: Delphinium, Larkspur

  • Classification: Hardy Herbaceous Perennial

  • Fully Grown Height and Spread: 120–180 cm x 60–90 cm

  • Growth Habit: Upright, Clump-Forming Herbaceous Perennial with Tall Flower Spikes

  • Perfect For: Herbaceous Borders, Cottage Gardens, Cut Flower Gardens, Back of Borders

  • Flowering Time: June to July (possible second flush in early Autumn if cut back)

  • Flower Colour: Deep Violet-Blue with Dark Central \"Bee\"

  • Planting Position: Full Sun to Light Partial Shade, Sheltered

  • Soil Type: Fertile, Moist but Well-Drained

  • Hardiness: Fully Hardy

  • Attracts: Bees, Butterflies and Pollinating Insects

  • Foliage: Mid-Green, Deeply Divided Palmate Leaves

Notes: This listing is for the 'Black Knight' variety, distinguished by its exceptionally deep violet-blue flowers — one of the darkest shades available in the Pacific Giants series.

At Plants for all Seasons, we take pride in our eco-friendly approach to packaging. Our custom-made plant boxes are designed with both the environment and your plants' wellbeing in mind. Here’s what makes our packaging special:

Upright and Fresh: Our innovative design ensures that your plants remain upright and fresh during transit. Specially engineered compartments and supports within the box prevent movement and damage, so your plants arrive in perfect condition.

100% Recyclable: Our plant boxes are fully recyclable, ensuring that after they have served their purpose, they can be responsibly disposed of without harming the planet.

Made from Recycled Materials: Sustainability is at the core of our values. That’s why our packaging is crafted from recycled materials, reducing waste and promoting a circular economy.

Winter Shipping: We offer additional heat packs in winter to keep your plants nice and warm on their travels. Add one heat pack per plant when checking out in winter months.

By choosing our products, you are not only enhancing your home with beautiful plants but also contributing to a greener, more sustainable future

Check out our YouTube video to see exactly how we pack for safe delivery.

Tropical Glasshouse Nursery: Our plants are nurtured in our tropical glasshouse nursery located in Lincolnshire, where we maintain an average temperature of 16°C. We do not use cold warehouses, ensuring optimal conditions for plant health.

Plastic Nursery Pots: All our plants are supplied in practical plastic nursery pots. If you prefer a more decorative option, we offer a range of stylish pots available for purchase separately.

Non-Consumable: Please note that our plants are intended for ornamental purposes only unless specifically stated as edible. Ensure you check product descriptions carefully if you are looking for edible varieties.

Variable Heights: The height of our plants can vary by approximately +/- 10%. This natural fluctuation ensures you receive a unique and healthy specimen.

Plant Pot Sizes: Pot sizes may vary by approximately +/- 1cm. To ensure a proper fit, we recommend selecting a decorative pot that is 1-2cm larger than the stated plant pot size. For instance, if you purchase a plant in a 17cm pot, a 18 - 19cm decorative pot would be ideal.

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