This plant has in the system Hansen/Mussel used for describing perennials the following code : 3.1.6.7
Explanation of the first digit : General location : OPEN SPACES. Plants for an open space, free of trees and shrubs. Always in the sun and a more or less rich soil.
Explanation of the second digit : Specific demands of the plant : Plants preferring a dry and sunny place, sometimes in brick walls.
Explanation of the third digit : Where to put : Plants to be used in combination with rock-garden plants.
Explanation of the fourth digit : Other characteristics : Short-living plant. Needs rejuvenating regularly.
