Delphinium 'Centurion White' F1

delphinium

approx 10 seeds £4.99 Buy
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  • Position: full sun
  • Soil: fertile, well-drained soil
  • Rate of growth: average
  • Flowering period: June and July
  • Flower colour: blue
  • Other features: all parts of the plant may cause severe discomfort if ingested; contact with the sap may cause skin irritation
  • Hardiness: fully hardy

    The pure white flowers, which crowd around the upright flower spikes look luminous in the border. This is an elegant perennial, which will often produce a second flush of flowers later in the summer if the spent flowers are removed promptly. Magnificent in the garden, it also makes a wonderful cut flower.

  • Garden care: Stake with bamboo canes in mid-spring. During the growing season apply a balanced liquid fertiliser every 2-3 weeks and wearing gloves cut back the faded flower-stems to a flowering side-shoot. At the end of autumn cut back and compost the faded flower stems

  • Sow: October or January-February

  • Flowering: June-July

  • Approximate quantity: 10 seeds

  • Harmful if eaten

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

    When should I plant Delphiniums, Foxgloves and Hollyhocks, and what will I gett in a pot?

    Hi there, I have a brand new, small, garden (approx. 36' by 30') and am in the process of creating borders. I'm aiming for fairly deep borders as I would like loads of cottage garden flowers. I am thinking of having a few evergreen / deciduous shrubs here and there to form some permanent interest. My gardening knowledge is more or less at the 'beginner' stage so I need some advice please. Is it okay to plant the shrubs now as long as the ground isn't frozen? When should I plant the perennials and annuals? Spring time? When I order for example Hollyhocks, Delphiniums and Foxgloves, and what do I get in the pot? Is it one plant that will produce one flowerhead? If I wanted to make a big colour impact, would I need to order loads of each plant? I look forward to hearing from you. Many thanks, Lynn
    Asked on 12/10/2009 by Wilson Lynn

    1 answer

    • A:

      Hello Lynn, You can plant any fully hardy plant at any time of the year
      as long as the ground is not frozen, but the ideal times are spring or
      autumn. Annuals only live for 1 year, some will flower in winter, while
      others flower in summer, so the planting time will depend on what type
      they are. As for the herbaceous perennials, these can be planted anytime
      as long as they are hardy, you will get 1 plant per pot. Each plant and
      species will produce flowers in different way. The ones you mention
      will generally produce 1 main flowerspike and a couple of smaller
      side-shoots, and if you cut them back when they start to fade you can
      often encourage a second flush later in the year. Finally then, if you
      want big impact, then yes you will need a lot of plants. I hope this
      helps. Helen Plant Doctor

      Answered on 12/11/2009 by Wilson Lynn
  • Q:

    When should I plant Delphiniums?

    I am interested in purchasing some Delphinium plants. When is the best time to buy and to plant? I live in Scotland and the winters here are both damp and cold.
    Asked on 11/25/2005 by alistair mackie

    1 answer

    • A:

      As a rule hardy plants that are grown in containers, can be planted at any time of year as long as the soil isn't frozen solid. The best times are in the autumn when the soil is still warm enough to encourage root growth but the plant isn't in active growth, or the spring before the temperatures start to rise, however you can also plant throughout summer as long as you make sure the plant is kept well watered.

      Answered on 11/30/2005 by Crocus
Displaying questions 1-2

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