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  • Soil drainage: Moisture-retentive x

Althaea cannabina (Palm-leaf marsh mallow)

Other names: Hemp-leaved hollyhock, Althaea armeniaca, Althaea kotschyi, Althaea narbonensis, Alcea cannabina, Hemp leaf mallow

A. cannabina is an erect, woody-based, herbaceous perennial with open, branching stems bearing, deeply lobed, hairy, dark green leaves and clusters of small, cupped, lilac to deep pink flowers from summer into autumn.

Ultimate spread 0.6m
max. spread
Ultimate height 2m
max. height
Time to ultimate size 1-2 years
to maturity
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