Lithodora fruticosa, or the shrubby gromwell, is a small 15–60 cm high densely branched perennial shrub. Its erect young stems are covered with short white hairs, while Its older stems have peeling grey bark and are frequently gnarled and twisted.
Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.
Lithodora generally requires no fertilizer unless the leaves turn pale greenish-yellow. If this occurs, provide a fertilizer for rhododendron, azalea or other acid-loving plants in late winter or very early spring.
It also works well in window boxes or containers. Lithodora is relatively easy to find in garden centers.
