evening primrose

Evening Primrose (Oenothera 'Shimmer') should be watered fairly consistently year round. Water the soil deeply, and then water again when the top 1 or 2 inches of soil feel dry. Soil should not be allowed to become soggy. In general, it is better to water less and more deeply than to frequently water only a little bit. In the summer months, Evening Primrose may require watering twice a week. In the spring, and in cooler months, watering every 7-10 days should be sufficient.

The evening primrose (Oenothera 'Shimmer') should be placed in a spot with full sun for at least 6 hours per day. This plant prefers direct sunlight, and should ideally receive at least 6 hours of direct sunlight each day. It can also tolerate partial shade, but will perform best if it has direct sun for a majority of the day. Avoid shady locations, as this can cause the plant to be weakened and unable to produce flowers. The evening primrose is an excellent choice for a container garden, as it doesn’t require much space. It’s ideal for containers with good drainage, as it can tolerate a wide range of temperatures. Additionally, it can even be grown indoors in a sunny window.

For best results, prune the Evening Primrose (Oenothera 'Shimmer') in late winter to early spring, before new growth begins. Prune hard, by removing a large portion of the old flowering stems. All stems more than 1 year old can be removed, down to 10 to 20 cm from the base of the plant. This type of pruning encourages vigorous growth and larger, more abundant blooms. If needed, prune again lightly in mid-summer, to shape or to restrict vigorous growth. If desired, remove a few dead or damaged stems any time throughout the summer.