
Pink-flowered plant of damp places blooming in late summer; a butterfly favourite that gives honey bees moderate nectar and little pollen.
Hemp-agrimony is a perennial that forms stands along stream and lake shores, in damp woodland clearings and ditches, and can reach one and a half metres in height. Its dense clusters of small pink heads particularly attract butterflies. Honey bees also visit and take nectar from the narrow tubular florets; its pollen contribution is low.
It lasts 6-8 weeks from July to September; in damp valleys it coincides with the late-summer period when other sources are dwindling.
No monofloral honey is produced; it contributes to the late-summer mixed honey of damp regions.
The plant contains pyrrolizidine alkaloids; it is harmful to grazing animals and these substances can occur in trace amounts in honey. Bear this in mind for late-summer honey produced near dense stands. It is common in the damp valleys of the Black Sea and Marmara regions.