St. John’s Wort (Hypericum Perforatum)
St. John’s wort is common in the gardens of those who grow for medicinal purposes, but it also produces incredibly beautiful exotic flowers. It’s a herbaceous perennial with creeping rhizomes, reddish stems that get rather woody near their base, clustered branches, and delicate bright yellow flowers.
These flowers each have five petals with black dots spread across their surface. Although it’s effectiveness as medicine has little evidence, these plants are poisonous to livestock so do consider this before planting.