Erysimum (wallflower) trial 2025

Objectives and purpose of the trial

The focus of this trial is on Erysimum (wallflower) cultivars grown in open ground. New selections have been introduced since the last trial in 2004 at RHS Wisely, Surrey. The trial, in partnership with the Floral Fantasia Group, will compare these new additions against established cultivars at RHS Hyde Hall, Essex, to see how they perform. Those that perform best will be awarded the RHS Award of Garden Merit (AGM).
Newly planted trial beds in Floral Fantasia in January 2025
Close up plant portrait of colourful Erysimum ‘Constant Cheer’

People’s choice vote

From 1 March to mid-May, have your say in choosing the top Erysimum at RHS Hyde Hall. Explore the stunning displays, pick your favourite, and cast your vote. Simply ask a member of staff for a voting paper – every vote counts.

Judges and criteria

Judging criteria

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

  • Flower performance
  • Habit
  • Colour and appeal

  • Pest and disease resistance
  • Longevity
  • Hardiness

Suppliers to the trial

List of plants in the trial

View all of the Erysimum on trial at RHS Hyde Hall
  • Erysimum ‘Bowles’s Mauve’
  • Erysimum ‘Constant Cheer’
  • Erysimum COLOUR VIBE ORANGE (‘Cdcery2’)
  • Erysimum COLOUR VIBE RED (‘Cdcery1’)
  • Erysimum ‘Early Sunrise’ (Sky Series)
  • Erysimum linifolium ‘Bowles Me Away’
  • Erysimum linifolium ERYSISTIBLE MAGENTA (‘Erfz0004’) (Erysistible Series)
  • Erysimum linifolium ERYSISTIBLE SUNSET IMPROVED (‘Erfz0008’) (Erysistible Series)
  • Erysimum linifolium ERYSISTIBLE TRICOLOR (‘Erfz0006’) (Erysistible Series)
  • Erysimum linifolium ERYSISTIBLE YELLOW (‘Erfz0007’) (Erysistible Series)
  • Erysimum linifolium FLORANGE (‘Balcherflora’) (Cheers Series)
  • Erysimum linifolium LEMON YELLOW (‘Balcherlemy’) (Cheers Series)
  • Erysimum linifolium SUN-KISSED AMETHYST (‘Balcherissam’) (Cheers Series)
  • Erysimum linifolium ‘Sunstrong Violet’ (Sunstrong Series)
  • Erysimum linifolium SUPER BOWL MAUVE (‘Erfz0001’)
  • Erysimum ‘Night Skies’ (Sky Series)
  • Erysimum ‘Paint Box’ (Artist Series)
  • Erysimum ‘Red Jep’
  • Erysimum RYSI WINTER CARNIVAL
  • Erysimum RYSI WINTER CREAM
  • Erysimum RYSI WINTER JOY (‘Inerywijoy’)
  • Erysimum RYSI WINTER ORCHID (‘Innerywinorch’)
  • Erysimum RYSI WINTER POWER (‘Inerywipow’)
  • Erysimum RYSI WINTER SPICE (‘Inerywispi’)
  • Erysimum RYSI WINTER SPIRIT
  • Erysimum RYSI WINTER TOUCH
  • Erysimum SPRING BREEZE COPPER (‘Kerysicop’)
  • Erysimum SPRING BREEZE SUNGLOW (‘Kerysiglo’)
  • Erysimum SPRING BREEZE SUNSET (‘Kerysiset’)
RHS Award of Garden Merit logo
Buy AGM plants at RHSplants.co.uk

Choose from hundreds of specially-selected plants, bulbs, seeds and gardening products in our online shop.

Shop now

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.

Love gardening

Sign up to receive regular gardening tips, inspiration, offers and more

View our Privacy Policy

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.