Description
Height: 1 – 1.2 m
Width: 0.5 – 1 m
Grass
slightly tolerant to wind
frost resistant
Soil: loess, sabulous clay, light clay, sand, loamy soil
Soil moisture level: dry, moist
Light requirements: sun
Flower colour: violet, blue. Flowering period: June – August
Leaf colour: grey-green, underside white-grey
Root system: moderately branched, coarse roots
