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Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -
Giant Allium Globemaster -

Giant Allium 'Globemaster' -

Giant blooms - 8in across
  • Enormous, deep-magenta flower heads that make a real impact!
  • Each multi stemmed plant bursts with vibrant colour May to June each year.
  • Grows to 1m (3ft) tall with flowers up to 20cm (8 inches) across!
  • Perfect for pots, containers or borders. Displays get bigger and better each year.
  • Pack of 2 bulbs, ready for planting. Size 18/20.

Product options:

Pack of 2 bulbs
Item: 630039
Pack of 2 bulbs - Item: 630039
ONLY £9.99
Key Points
Full Product Details

Product Information

The biggest and the best ...

Allium Globemaster is a fantastic plant with enormous, deep-magenta flower heads that grow up to 20cm (8in) across, bursting with vibrant colour from May into June each year. Growing to 1m (3ft) tall, each of these bulbs will look great in pots or borders and will thrive and form a multi-stemmed clump in any garden.

Coming back year after year with bigger and better flowers, the stems last really well once dried too.

What Is Supplied

Item 630039 supplied as:
Supplied as a pack of 2 bulbs, ready for planting.
Size: 18/20.

Plant Care Information

RHS Garden Merit
RHS Garden Merit
Perfect In Pots
Perfect In Pots
Winter Hardy
Winter Hardy
Cut Flower
Cut Flower
Easy To Grow
Easy To Grow

Top Tips

Underplant with hostas, ferns or other low-growing, hardy perennial plants which will help to disguise the leaves as they fade.

Care Information

Planting Advice for Allium Globemaster:

  • Find a location where the soil drains well and where they will receive full sun.
  • Plant allium bulbs in early to mid autumn in a sheltered site to prevent the top-heavy flower spikes from getting blown over.
  • Dig over the soil and remove any weeds before planting.
  • Water well after planting, saturating the soil around the bulbs. Once established, alliums are drought tolerant.
  • In borders, plant bulbs in early autumn at a depth of about four times the diameter of the bulbs.
  • In containers, alliums will do well in deep pots with a good general-purpose potting compost with a handful of horticultural grit added.


Aftercare Advice for Globemaster:

  • After planting, feed with a general-purpose feed such as our Blooming Fast Superior Soluble Fertiliser.
  • Dried flower heads can be removed and made into indoor decorations or left on the plants to self-seed.
  • Divide alliums every three to four years or when the plants begin to look overcrowded and blooming decreases.
  • Lift the bulbs with a garden fork or spade and pull the bulbs apart.
  • Replant some in the original location and plant the remainder in a new location.


Pruning and trimming advice for Alliums:

  • The leaves die down at flowering time, so itís best to plant alliums where this foliage is masked by that of other plants.
  • Avoid removing them while still green, as they provide the bulbs with energy for the following season.

Planting/Flowering Calendar

Planting Time
Flowering Time
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Fully Grown Plant Dimensions (approx)

Plant Dimensions
100 cm
20 cm
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1. If you're not totally happy with your order, return it within 30 days and we'll replace or refund in full!
2. Should any hardy plant fail to thrive thereafter, we'll replace free of charge - you just pay the P&P
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