Two British species of Hypericum have hairs on both upper and lower sides of the leaf; Marsh St Johns-wort, which has runners and is found in bogs, and Hairy St Johns-wort, which has an erect stem and black dots along the margin of its sepals.
Being a medium to tall grassland perennial with a rounded stem Hairy St Johns-wort can be mistaken for Perforate St Johns-wort but as the name suggests, it is hairy and the oblong leaves are much longer. It flowers from July to August with seed shed from September onwards. The plant normally dies back in winter but may persist in particularly sheltered sites.
We sell Hairy St Johns-Wort (Hypericum hirsutum) seeds per gram; customers should be aware that when ordering more than one gram of Hairy St Johns-Wort seeds, the entire amount will be bagged together to reduce unnecessary packaging.
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