Berberis x stenophylla, commonly known as Rosemary Barberry, is a medium-sized evergreen shrub known for its graceful arching branches, fragrant golden-yellow flowers, and attractive blue-black berries.
Here are the key features and care guidelines for this plant:
Description:
Rosemary Barberry features gracefully arching branches covered with narrow, spine-tipped leaves. The leaves are approximately 1 inch (2.5 cm) long and have a deep green color on the upper side and a blue-green hue on the underside.
The plant produces profuse clusters of bright golden-yellow flowers in late spring to early summer. These fragrant flowers dangle along the stems, adding visual and olfactory appeal.
After flowering, small blue-black berries develop on the plant. These berries are not only ornamental but also provide a food source for birds.
Size:
Rosemary Barberry typically grows to a height of 8-10 feet (240-300 cm) and has a width of 12-15 feet (360-450 cm).
Cultural Requirements:
This shrub thrives in full sun to part shade. It can adapt to various soil types, but it’s important that the soil is well-draining and not excessively wet or soggy.
Once established, Rosemary Barberry is drought-tolerant and requires little additional watering.
For optimal fruit production, plant the shrub in full sun.
It is suitable for a variety of garden settings, including banks, slopes, coastal gardens, cottage gardens, and as an informal hedge or screen.
Pest and Disease Considerations:
Rosemary Barberry is generally free from serious pest or disease issues. However, it’s recommended to be watchful for potential problems like berberis sawfly and powdery mildew.
The plant is considered deer-resistant, making it less likely to be browsed by deer.
Pruning and Maintenance:
To maintain the health and appearance of the shrub, prune it immediately after flowering. This helps to shape the plant and remove any dead or damaged growth.
Propagation:
Rosemary Barberry can be propagated from seed or from semi-hardwood cuttings. Collect seeds or take cuttings from the plant to start new individuals.
Safety Considerations:
Ingesting parts of the plant may cause mild stomach upset, so it’s advisable to keep it out of reach of children and pets.
In conclusion, Berberis x stenophylla, or Rosemary Barberry, is an evergreen shrub with a combination of attractive foliage, fragrant flowers, and berries. Its versatility in various garden settings, ease of care, and resistance to pests and diseases make it a valuable addition to landscapes. Whether used as a specimen, hedge, or slope stabilizer, Rosemary Barberry can contribute beauty and interest to a range of garden designs.