Photo by Mark
McDonough
The pale blue-flowered plant in the center is
a robust
plant labeled as Dracocephalum grandiflorum from the
NARGS seed exchange. I received it as a small seedling
in August 2000 at a New England Chapter NARGS
meeting and seedling sale. It surprised me with it's
size, quickly spreading to 24" across x 14-16" tall,
and swamping some of my little Allium flavum var.
tauricum color selections in the foreground.
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Photo by Mark
McDonough
According to Hortus and other references, the
plant
distributed as D. grandiflorum in cultivation is typically
D. rupestre instead. However that species is said to
have reddish calyxes (they're green in my plant), the
calyx half as long as the corolla (here the calyx is
much shorter than the corolla), and dark bluish-violet
flowers (flowers are pale blue in my plant). So,
what can this plant be?
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