https://www.plantdelights.com/products/onosma-echioides
Learn about Onosma echioides | Golden Drops | Perennial Encyclopedia
Onosma echioides aka Golden Drops is natvie to Southern Europe, is hardy in 7a to 8b, guessing, grows to 15
learn aboutonosmagoldendropsperennial
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:119611-1
Onosma dalmatica Scheele | Plants of the World Online | Kew Science
plants of the world onlineonosmascheelekewscience