Sundrop or Oenothera

Oenothera is a genus of about 145 species of herbaceous flowering plants native to the Americas. It is the type genus of the family Onagraceae. Common names include evening primrose, suncups, and sundrops. They are not closely related to the true primroses (genus Primula). The sun-drop usually found in gardens is mistakenly called “evening primrose” some Oenothera do bloom at night, but not thee. They resemble large, spread open buttercups and bloom in early summer, with some repeat bloom as summer goes on O. pilosella however sometimes labeled O. fruticosa is the weedy variety gardeners tend to complain to plant if you want a lot of sunny yellow in your garden and you want it quickly, O. missourensis has larger flowers, grows low to the ground, and is not a spreader. Fyrverkeri is long blooming. Moreover all sun loving and tolerant of dry, infertile soil and those that enjoy your garden too much can easily be weeded out, for they are shallow rooted. Try them in a spot where you want a lot of color quickly.