This Heuchera is a cross from H. 'Palace Purple' and H. 'Sunset and was bred in 1994 by a Hardy Plant Society member who named it and another Heuchera - 'Rachel' - after her children. It has round-lobed slightly toothed purple foliage which ages to a very dark green with the reverse of the leaves being a very bright purple-pink. The long flower stalks extend well beyond the foliage and produce a succession of white flowers from pink buds over a long season from early summer to the first frosts.
The plant is a very good cultivar that is a strong grower in sun or part shade and stays looking good even when it is not in flower over the winter. The evergreen foliage of Heuchera 'David' reaches a height of 30-40cm with the flower spikes extending to 40-50cm depending on the soil conditions.
It will grow in a range of conditions but dislikes extremes of wet and dry soils.
Propagation can either be by basal cuttings or division. Alternatively, if the plant becomes woody at the base, which it can tend to do, the whole thing may be dug up and planted in a deeper hole which usually results in the 'branches' rooting individually.
As with all Heucheras it is vulnerable to vine weevil so any grower must be vigilant, especially if it is kept in a pot.
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.