Pulmonaria 'Opal' or Ocupol stands out for me because of its pale green leaves, speckled with silver. Pale pink buds emerge in March above the small ovate leaves and turn into clusters of pale blue flowers. Simply enchanting. This is a compact, neat plant and can be left to grow without any regular maintenance.
In general pulmonarias are well-suited for clay, chalk or loam soil that is fertile but not waterlogged. 'Opal' unlike other pulmonarias is a semi-evergreen perennial and so may lose some leaves during autumn and winter. It also grows at a much slower rate than other types but still forms clusters which many need to be divided every few years.
There are a variety of pulmonarias to choose from ranging from heady reds through to white and blues and some plain foliage types if all those silver spots get a bit too much. However for me, Pulmonaria 'Opal' gives that little splash of welcome colour in early spring that's just right.
Average height: 0.1- 0.5cm
Average spread: 0.1 - 0.5cm
Flowers between: Mar - Apr
Soil type: fertile
Sun/shade: Full sun/partial shade
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