Veronica, herbaceous trial 2025–2027

Objectives and purpose of the trial

The purpose of this trial is to assess a range of herbaceous Veronica species and cultivars readily available to gardeners. The RHS Trials team at RHS Wisley, Surrey, will compare, record and display the merits of new additions against established cultivars, as well as identify the correct nomenclature (naming) for the species and cultivars in the trial. Those that perform best will be awarded the RHS Award of Garden Merit (AGM).
Veronica spicata ‘Glory’ adding colour to the garden
Vibrant spikes of Veronica longifolia ‘Marietta’ in full bloom

Judges and criteria

Judging criteria

The following factors are all taken into consideration as part of the judging of the trial:

  • Overall impact and habit
  • Balance of flower to foliage, flower quality, depth of colour, length of flowering and re-flowering
  • Health and vigour

  • Pest and disease resistance
  • Plant value when out of flower, and foliage quality
  • Attractiveness to pollinators (as an observation note)

RHS Award of Garden Merit logo
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Handy tools and information

Get in touch

For more information on our RHS Plant Trials or to access older trial reports, please get in touch with our team via email at trials@rhs.org.uk.

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