Categories blue & purple flowers | Glandora diffusa “Heavenly Blue” Glandora diffusa “Heavenly Blue” Common name(s): Purple Gromwell Synonyme(s): Lithodora diffusa, Lithospermum diffusa Family: Boraginaceae Origin: the wild type is native to France, Portugal, Spain, Morocco More infos: USDA zone 7 Related plants:Anchusa arvensis Anchusa officinalis Borago officinalis Borago officinalis “Alba” Brunnera macrophylla Brunnera macrophylla “Jack Frost” Brunnera macrophylla “Looking Glas” Brunnera macrophylla “Silver Heart” Carmona microphylla Cordia subcordata Cynoglossum officinale Echium vulgare Echium vulgare Heliotropium curassavicum Myosotis arvensis Myosotis sylvatica Omphalodes verna Omphalodes verna “Alba” Phacelia tanacetifolia Pulmonaria officinalis Symphytum officinale