Distribution
Marrubium peregrinum is a plant from South-eastern Europe that is
archeophytically distributed in Germany. The only stable populations are in
the eastern part of the Harz Mountains in the vicinity of the lake Süßer See.
This region is rather summer-warm and summer-dry. The plants grow in
slightly disturbed dry meadows on loess.
Our plants are from Erdeborn (Saxony-Anhalt), where an old individual
grows since a long time. Other plants are from Wormsleben.
Biology and growth
The plants are partly evergreen. It grows as a pleiokorm (caudex), i.e. the
basal branches remain attached to the long-lasting primary root and may
hardly separate. Propagation using cuttings is, thus, hardly possible. Plants in
beds grow better than those in pots. In pots, the plants produce few seeds.
They germination rate is moderately.
Conservation
Seeds are sown from autumn until early summer. Best time is from the
beginning of April until June. Highest germination rates are obtained if the
seeds are not exposed to frost. Later, the seedlings are transplanted into pots
with a diameter of 9 cm. In the second year they again transplanted in pots
with a diameter of 12-13 cm. The soil is sandy garden soil. The pots are
watered moderately and kept not too wet.
Places of conservation
Plants are in the Botanical Gardens of Halle. In 1980 and 1982 plants
originating from Wormsleben were brought back to the vicinity of
Wormsleben.
Literature
Meusel, H., Jäger, E., Rauschert, S., Weinert, E. (1978): Vergleichende
Chorologie der zentraleuropäischen Flora. Vol. 2. Fischer, Jena (distribution
map).
Text (c) Botanischer Garten Halle: J. Böttcher, F. Ebel,
H.-G. Fuhrmann, M. H. Hoffmann, 2007.
Back to species list