Giant Knotweed in Winter
Recently on a trip to the Leiden Observatory with my friend Fem (follow her blog, she’s off to volunteer in South-Africa on Sunday!), I ran across my old friend the Giant Knotweed.
More on this gorgeous, non-indigenous plant, follow the tags giant knotweed.
Tags: Botanical Garden, botanical garden leiden, Fallopia sachalinensis, giant knotweed, Hortus Botanicus, invasive species, Leiden, Polygonum sachalinensis