These perennials usually remain in the 1 to 2 feet high range under most conditions. They are still low enough for the front of perennial border, garden, and landscape and some of the rhizomatous species will make low to medium height groundcovers. Their tidy habits also lend them to use as fillers and spillers for container specimens and in combinations for small to medium sized containers. Growing conditons and how well a plant is established may affect it's ultimate size.
A dwarf selection of our native Sundrops, Fireworks is the ultimate Oenothera cultivar producing vigorous but compact sprawling plants with red tinged foliage and even redder new growth and winter rosettes. The plants are absolutely covered by 2" wide, widely flaring, 4-petalled, glowing sunny yellow flowers in late spring and early summer. Images courtesy of North Creek Nurseries. Item# 10160.