Nierembergia

More Information About Nierembergia

Nierembergia is a genus of 20 or more herbaceous South American perennials that are related to petunias, tomatoes, and potatoes. These flowering perennials produces hundreds of penny-sized, cup-shaped flowers on top of a low growing mound of narrow foliage.

Nierembergia flowers are blue or white, attract butterflies, and are produced continuously from spring until frost. Nierembergia is a relatively unknown perennial wildflower genus that we believe deserves much wider use. It is usually grown as an annual, although some species are perennial at least to Zone 7.

Tips for Growing Nierembergia (Cupflower)

Nierembergia grows best in full sun and consistently moist, well-drained soil. However, when dormant, does not like winter moisture and should be kept dry. Once established, it is drought-tolerant.

Cupflower in the Garden

Try massing along a border or on a slope. It looks great when combined with thicker textured perennials like echinacea plants, Japanese iris, or eucomis. Cupflowers are also great as groundcovers, container plants, or cascading over a wall.