This selection of shrubs is chosen specifically for the poor, thin, acid soils common on the upper parts of the Howth Penninsula. The two we have selected below are at their best this month.
Perovskia “Blue Spire”
Sometimes called Russian sage, this sub-shrub produces soft grey-green foliage on white stems. The flowers resemble spikes of blue lavender. This variety has larger flower-heads and is an impressive plant, even in winter when bold groups of the white stems make an attractive feature. The deeply cut foliage smells strongly of sage when bruised. The Royal Horticultural Society has given it the Award of Garden Merit (AGM).