Allium Karativiense 'Red Giant Star'

5 bulbs
£4.19
£0.84 each
10 bulbs
£7.49
£0.75 each
Save 11%
25 bulbs
£16.19
£0.65 each
Save 23%

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Red Giant Star' is a prized cross between Allium christophii and Allium atropurpureum, inheriting the giant, starry structure of the former and the deep colouring of the latter.

Make way for a stellar performance. 'Red Giant Star' is a magnificent hybrid that commands attention with its massive flower heads and unique colouration. It features the huge, starry florets of its christophii parentage but infuses them with a rich, reddish-pink hue, centered with a deeper red eye. The individual flowers are enormous, creating a lacy, open globe that can span over 8 inches wide. It blooms on strong, relatively short stems, making it a robust and wind-resistant choice for a high-impact position in the mid-border. The combination of its impressive size, intricate floral detail, and warm, radiant colour makes it a living sculpture in the garden, a true showstopper that draws the eye and sparks conversation.

Botanical name Allium 'Red Giant Star'
Flower colour Reddish-purple
Bulb size Not specified
Established height 40-50 cm
Established spread 15-20 cm
Plant spacing Not specified
Leaf colour Green
Habit Upright
Life cycle Perennial
Hardiness Fully hardy
Years to establish 1st year
Sunlight Full sun
Position Sheltered
Suitable for Borders, Containers
Soil acidity Any
Soil moisture Free draining
Soil type Loam, Sandy
RHS Award (AGM) Not specified
Growing skill Easy to grow
Pollinator-friendly Yes
Deer resistant Yes

Where to Plant:

This allium needs a position in full sun to develop its large, reddish-purple flower heads and strong stems. As with all ornamental onions, excellent drainage is paramount to prevent the bulbs from rotting in wet winter weather. It is a striking specimen for the middle of a sunny border, where its unique colour and starry flower shape can act as a focal point. It works well planted amongst silver-leaved perennials or grasses, which will complement its rich tones.

How to Plant:

Plant the bulbs in the autumn. For a plant named 'Giant Star', deep planting is key to support the flower stalk. Aim for a depth of at least 15-20cm from the base of the bulb to the soil surface, with the pointed tip facing the sky. Space the bulbs generously, at least 30cm apart from one another, to give each plant enough room to show off its impressive flower head. Planting in groups of three or five will create a cohesive and dramatic impact.

Aftercare:

This is a low-maintenance bulb once established. It is drought-tolerant and should not require any additional watering. After the impressive flower globes have faded, you must allow the foliage at the base to die back completely. This process of senescence is vital for the bulb to store sufficient energy for a reliable performance the next year. The decorative seed heads can be left on the plant for extended visual interest.

Planting and Flowering Calendar

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Key Features

Packed in paper

Packed peat-free

Great for Shade

Attracts wildlife

Low maintenance

Perfect for pots

Good for cutting

Allium 'Red Giant Star' - Harding & Bloom

Allium Karativiense 'Red Giant Star'

£4.19

£4.19

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Kind Words from Our Gardeners

Arrived quickly and well-packaged. Planted them in some pots on the patio and they all came up. Look beautiful. Thank you!

Careane Wallace

Oxfordshire, UK

The bulbs arrived beautifully packaged and you could just tell they were excellent quality. We had the most wonderful display of daffodils this spring on our patio. Simply stunning. Will definitely be ordering again

David P

Kent, UK

I ordered the mixed hyacinth collection and the scent in my garden this April was absolutely heavenly. Every single bulb produced a strong, beautiful flower and the colours were stunning together. A fantastic purchase, I'll be back for more next year!

Eleanor R

Somerset