Finally! After looking for the "plain" blue one for many long years, we located them at the Winterthur Museum, kindly shipped to us by Patti Pleva. As they came as a "park mix", we selected the best and now we are we're able to share. Unlike Anemone nemorosa, these are clumping. Anemone apennina bloom March into April for us but will do so later in colder zones.