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A picture of a Mertensia


Mertensia spp.

Mertensia virginica.bbg by User:Nafsadh (CC BY 2.0)

Full Sun
Moderate watering
Frost Hardy


RHS hardiness


Minimum temperature

Expected size





  • spring
  • summer
  • autumn
  • winter

More images of Mertensia

A photo of Mertensia
A photo of Mertensia
A photo of Mertensia

Mertensia Overview

A genus of between 45 and 62 species of herbaceous perennial plants in the Boraginaceae family native to North America and parts of Asia with a centre of diversity in the Rocky Mountains where they inhabit alpine, subalpine and montane zones. They have usually grey-green or glaucus leaves and tubular or open-trumpet shaped blue flowers. Commonly cultivated species such as M. virginica have become naturalised in parts of Europe. They prefer a shady spot.

Common problems with Mertensia

How to propagate Mertensia


You can propagate by division in the spring.


Seed in the autumn.

Other uses of Mertensia

Grown for their funnel-shaped flowers.

Blue Flowering Summer Plants

Love blue flower and looking for summer inspiration.

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