Allium plummerae

Allium plummerae S.Watson has a very limited range in Arizona and New Mexico, where it is found at high elevations in marshes and alongside streams. Accordingly, it prefers good garden soil and adequate irrigation. It has upright tufts of strongly keeled (almost three-sided) grayish foliage and showy flat clusters of wide-open upright starry pure white flowers with creamy yellow ovaries that age a tawny orangish color. It is a very reliable, non-invasive, clump-forming species, blooming in July-August. Height: about to 60 cm. Photo by Mark McDonough who considers it to be one of his absolute favorite onions.