Delphinium trials

The Royal Horticultural Society are planning a Delphinium Seed Trial to be planted out in 2023 at the RHS Wisley Trial grounds. The seed range is still to be decided and the trial will be run by the Herbaceous Plant Committee of the RHS and the Wisley Trials Department.

The last trial was in 2007/8 and it is hoped this new trial will run for 3 years. This should provide a better assessment of the true perenniality of different seed strains.

We are aware of the many commercial seed strains that are available, but we are looking for those which have given particularly good results. So, we are seeking recommendations from specialist delphinium growers and Society Members.

Dr Clive Rowe will send our suggestions to the RHS trials department at Wisley and they will finalise the list of nurseries and growers who will be invited to take part in the Trial.

If you have any suggestions, please email Dr Clive Rowe

Details of new trials

  1. General
  2. Selection
  3. Application Form
  4. Triallists
  5. Results
  6. AGM plants in 2014

Past trials

Previously AGM awards given by the Royal Horticultural Society, were confined to the results of the delphinium trials at Wisley, until they ended in 2013.