Allium 'Globemaster'

ornamental onion

2 litre pot
pot size guide
£9.99 £7.49 Buy

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

Val Bourne - Garden Writer

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

    Large spherical flowerheads made up of numerous star-shaped, deep violet flowers appear in summer. The enormous flowerheads, measuring up to 15cm, 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 that will 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.

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Astrantia 'Roma' (PBR)


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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    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
    Asked on 1/7/2014 by Shiraz21 from Hull

    1 answer

    • Plant Doctor


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

      Answered on 1/9/2014 by Anonymous from Crocus
  • Q:

    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
    Asked on 11/27/2009 by Valerie

    1 answer

    • A:

      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

      Answered on 11/30/2009 by Crocus Helpdesk
Displaying questions 1-2

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