Allium 'Globemaster'

1 bulb
£5.99
£5.99 each
5 bulbs
£25.99
£5.20 each
Save 13%
10 bulbs
£44.99
£4.50 each
Save 25%

Order today, receive in August/September

Free delivery on UK orders over £50

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Our "Bloom or Bust" Promise

It's all flower, no seeds! 'Globemaster' is sterile, so instead of worrying about making babies, it puts all its energy into creating a massive, long-lasting bloom that can last for over a month.

When it comes to making a statement, 'Globemaster' is in a class of its own. This magnificent variety boasts some of the largest flower heads available—enormous, 8-10 inch globes packed with thousands of star-shaped, purple florets. What makes 'Globemaster' truly special is its incredibly long bloom time; as new florets open from the center, the flower head continues to expand, maintaining its perfect spherical shape for weeks on end. It’s a living sculpture for your garden, providing a powerful focal point that commands attention and inspires awe. Even after the colour fades, the dried seed heads provide architectural interest well into the winter.

Botanical name Allium 'Globemaster'
Flower colour Giant violet-purple globes
Bulb size 20/+ cm
Established height 80-100 cm
Established spread 20-30 cm
Plant spacing 10-15 bulbs per m²
Leaf colour Grey-green
Habit Upright
Life cycle Perennial
Hardiness Fully hardy
Years to establish 1st year
Sunlight Full sun
Position Sheltered
Suitable for Borders, Gravel gardens, Cut flower gardens
Soil acidity Any
Soil moisture Free draining
Soil type Loam, Sandy, Chalky
RHS Award (AGM) Yes
Growing skill Easy to grow
Pollinator-friendly Yes
Deer resistant Yes

Where to Plant:

Choose a location that receives at least six hours of direct sunlight per day. Well-drained soil is essential, as these large bulbs will rot in soggy ground. They are perfect for adding height and structure to the back or middle of perennial borders and make stunning, long-lasting cut flowers.

How to Plant:

In the autumn, plant each bulb with the pointed tip facing upwards, about 15-20cm (6-8 inches) deep. This depth is crucial to help support their tall, heavy flower heads. Space them at least 20-30cm (8-12 inches) apart to give them room. For a powerful visual statement, plant in bold drifts of five or more bulbs. Water them once after planting to help settle the soil.

Aftercare:

Once the impressive flower globes fade, allow the foliage to die back and turn yellow naturally. Do not cut it down while it is still green. This is the most important step for ensuring a repeat performance, as it allows the plant to store energy in the bulb for next year's bloom. The dried seed heads can be left for extended structural interest or removed by snipping the stalk at the base.

Planting and Flowering Calendar

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Key Features

Packed in paper

Packed peat-free

Great for Shade

Attracts wildlife

Fragrant

Low maintenance

RHS Award (AGM)

Rodent resistant

Perfect for pots

Good for cutting

£5.99

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