How to Grow Evening primrose (Oenothera biennis)
Evening primrose relates to several plants in the Oenothera genus. There are many varieties worldwide but the most common in the UK is Oenothera biennis, a biennial plant native to North America, which has naturalised here in the UK. It bears large, light yellow bowl-shaped flowers, which open in the evening and attract night-flying pollinators […]