Erysimum 'Ruston Royal'
A Conservation Scheme Plant
Norfolk & Suffolk Group
Reason for Inclusion
Discovered as a chance seedling at East Ruston Old Vicarage. Alan Gray believes this to be a cross between Erysimum ‘Bowles Mauve’ and a Canary Island species.
Brief description of plant
Short-lived evergreen perennial.
Height x Spread
70cm x 50cm
Flower spikes have both light and dark mauve cruciform flowers together.
Evergreen, lanceolate bright green, heavily-serrated leaves.
May - Sept
Neutral to alkaline soil. Free-draining.
Pests and diseases
Like all brassicas they can be susceptible to flea beetle damage which appears as small holes in the leaves. Club root can be a problem if the soil is too acid.
Short-lived perennial with typical lifespan of 3-4 yrs so needs to be propagated regularly.
Take soft or semi-ripe cuttings to root in gritty compost under glass, with or without heat.