This plant has in the system Hansen/Mussel used for describing perennials the following code : 1.2.6.4
Explanation of the first digit : General location : WOODLAND. Plants, that in a garden need to be planted close to trees or shrubs. They require shade and prefer a peaty soil.
Explanation of the second digit : Specific demands of the plant : Plants for a sheltered, shaded place, between or near trees or shrubs, with a cool soil and maybe an hour or so sun a day.
Explanation of the third digit : Where to put : Plants of near the edge of a forest: some shade, some sun.
Explanation of the fourth digit : Other characteristics : Does not sucker much, combines well with other plants.
Color : blauw
Flowering period : march - may
Size approx. : 30 cm.
Recommended quantity per square meter : 7
Location of the plant shown in the first picture : Botanische Tuin Fort Hoofddijk Utrecht