A fairly common garden escape, to be found on waste land. It seems to persist well.
J F Robinson 1902: "Very abundant in the chalk pits at Hessle, where it is quite naturalised ..."
Herbarium material: HLU : Hessle 1933 {A K Wilson}. HLL : Hessle 1936 {A K Wilson}. BBC : Hessle 1864.
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