Allium 'Globemaster'

2 litre pot £9.99
in stock
Quantity 1 Plus Minus
Buy Allium 'Globemaster' ornamental onion: Enormous, deep violet globes

  • Position: full sun
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: July
  • Hardiness: fully hardy

    Spherical flowerheads made up of numerous star-shaped, deep violet flowers appear in summer. These enormous flowerheads, measure up to 15cm and look great in pots or borders where they can be seen in their full glory. They are also perfect for a sunny border, dotted in groups among ornamental grasses, or as part of a Mediterranean scheme. Alliums look best planted between medium-sized herbaceous plants, which help to mask the strap-like leaves, which fade by the time the flowers appear.

  • Garden care: Avoid excessive moisture from late summer when dormant.

Delivery options
  • Standard £4.99
  • Next / named day £6.99
  • Click & collect FREE
more info

Eventual height & spread

Notes on Allium 'Globemaster'

"Plant these astounding alliums in a group to make a bold gesture and watch their completely round purple heads expand as new flowers cover the old throughout summer - keeping a tidy presence"

Lovely large purple head


I love alliums and this one is superb. A very large head on an approx 1 metre stem. The bees absolutely adore these and I often saw 15 to 20 on each head whilst they were in flower. They are a lovely achitectural plant, the only down side is hiding the leaves which become staggly and messy by the time they flower. Mine were hidden by a pink rose. I planted them in the front garden and lots of people have asked what they are and commented on how beautiful they are.




Fabulous Plants


An absolute show stopper! Large head attracted many comments




Visually impressive but short lasting


Visually impressive Needs more than one Best placed in sheltered area




I would recommend this product


These looked amazing on the website and they didn't disappoint. They came perfectly packed, no damage in transit, and were absolutely huge when they came out in flower and lasted for ages, very happy

Happy customer

West dorset



4.8 4


Hi When is the best time to buy and plant these? If I plant them in a container now (this early spring) will they flower this year? Also would you recommend a 2 litre pot per container? Thank you kindly


Hello there There is one bulb per 2lt pot which was potted last autumn, so will flower this year as long as planted in a sunny position. If you want to have a display of these alliums, you will probably want a few of these 2lt pots. Hope this helps

Can you plant them in spring for same year flowering ?


Hello there Yes these bulbs were potted up last autumn so will flower this year. Hope this helps.

Hi, What stage are these at now it is May. I have some gaps in a run of Globemasters that I would like to fill. Are they actively growing and will flower this year ?


Hello, These are in active growth and although we cannot guarantee flowers at any particular time, I would say that there is an excellent chance that they will flower this year.


Hi Are these bulbs already potted and growing? It's my friends birthday and she mentioned in the summer how she loved the huge allium flowers. I should have got myself organised earlier and planted some bulbs for her but left it too late so was looking to see if I could find ones already potted for her. Kind Regards Chris


Hello there Yes these bulbs are already planted in 2lt pots, although I doubt they will be showing any growth yet. Hope this helps

Allium 'Globemaster' planting Please can you tell me if it is too late to plant the above bulbs at the end of November. Many thanks Valerie


Hello Valerie, It is a little late, but if you get them in the ground as soon as possible you should not have any problems. You should enrich the soil with added compost and plant the bulbs 15cm deep. Space them at 25cm intervals to take full advantage of the big flower heads. Make sure the soil does not get too wet or waterlogged over winter. I hope this helps. Helen Plant Doctor

Crocus Helpdesk


A popular style during the Renaissance period, formal gardens were considered to represent mans domination and control over nature. They had a geometric layout with lots of straight lines and were often symmetrical. These days they tend to be a little les

Read full article

Flowers for the cutting garden

At some stage in June, your garden will be a glorious affair full of scent and soft flower. Placing a posy from the garden, close to a family hub like the kitchen table, unites your home and garden as effectively as having a huge picture window. You don’t

Read full article