Erysimum Lewis Hart
This former HPS conservation plant was withdrawn from the scheme because it was felt to be similar to other perennial wallflowers and the small size of the flowers reduced its impact. However it has had a favourable reception in Cheshire and one grower has provided her view about the plant for your information.
It has been grown in a very dry and sunny spot in a garden in Cheshire in 2013 (other growers have also commented that it needs a sunny, well-drained position). The plant started flowering in the autumn and continued to flower all through the winter. By the end of winter the flowers were still there, left on the tips of the flowering spikes but in the meantime, side shoots had developed at the base of all the flowering spikes and these produced their own flowers so the plant has actually been in continuous flower for over 7 months and looks likely to continue all through the summer. It must be the most floriferous plant I have ever had!
This Erysimum is about 18 inches high and is nearly 2 feet across after just a year. The flowers are small, several to a head and vary in colour from lavender-pink to a dull orange which is quite unusual. They are not especially showy but they have produced colour all through the winter when very little else was around. They also grow well from cuttings.
The Conservation scheme involves HPS members in growing these plants and documenting the best way to grow and propagate them. The plants are distributed across the country with many local groups and individual growers being involved.
The scheme is open to all HPS members. More information about the scheme can be found here.
Since the present scheme started in 1998, we have been successful in conserving over 30 plant varieties that are, in our opinion, all worthy of being grown in British gardens. However, there are still a large number of potentially garden worthy plants in need of conservation.
If you are a interested in making this (or any other of our conservation plants) available on a commercial basis, please contact the National Coordinator.