In the United Kingdom, Intermediate Evening-primrose (Oenothera glazioviana x biennis) is a perennial flowering plant that belongs to the Onagraceae family. It is a hybrid species, resulting from the cross-pollination of various evening-primrose species, including Oenothera biennis and Oenothera hookeri.

Intermediate Evening-primrose typically grows in open habitats such as grasslands, meadows, roadsides, and waste grounds across the UK. It thrives in well-drained soils with moderate nutrient levels and is often found in sunny or partially shaded areas.

Nutrient requirements for Intermediate Evening-primrose are moderate, and it can tolerate a range of soil types, including sandy, loamy, and clay soils.

In terms of predators, Intermediate Evening-primrose faces few threats specific to the UK. While some herbivorous insects may feed on its foliage, it is generally left undisturbed by grazers and other animals due to its bitter-tasting leaves and low palatability.

The lifespan of Intermediate Evening-primrose can vary, but individual plants typically persist for several years, flowering annually during the summer months.

Culturally, Intermediate Evening-primrose does not hold significant references in UK culture. However, it is valued for its ornamental value in gardens and landscaping projects, adding color and interest to outdoor spaces.

An interesting fact about Intermediate Evening-primrose is its ability to attract pollinators such as bees and butterflies with its showy, fragrant flowers. Its blooms open in the evening, releasing a sweet scent to attract nocturnal pollinators, making it a fascinating addition to garden landscapes in the UK.