Contents [hide]
Description
Also known as Alnus alnus, Frangula alnus subsp. alnus is a deciduous shrub or small tree that belongs to the Rhamnaceae family. It is native to Europe and western Asia and can grow up to 10 meters tall. The bark of the tree is smooth and grey, while the leaves are oval and slightly serrated. The flowers are small and greenish, while the fruit is a small, red or black drupe.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Rhamnales |
| Family | Rhamnaceae |
| Genus | Frangula |
| Species | Frangula alnus |
| Subspecies | Frangula alnus subsp. alnus |
Appearance
Frangula alnus subsp. alnus is a shrub or small tree that can grow up to 10 meters tall. The bark of the tree is smooth and grey, while the leaves are oval and slightly serrated. The flowers are small and greenish and bloom from May to July. The fruit is a small, red or black drupe that ripens from August to September. The plant prefers full sun to partial shade and moist, well-drained soil.
Care Guide
Frangula alnus subsp. alnus prefers moist, well-drained soil and full sun to partial shade. It is hardy in USDA zones 3 to 7. Water the plant regularly during the growing season and fertilize with a balanced fertilizer in the spring. Prune the plant in the late winter or early spring to promote healthy growth and remove any dead or damaged branches.
Common Pests & Diseases
Frangula alnus subsp. alnus is susceptible to a variety of pests and diseases, including aphids, spider mites, powdery mildew, and leaf spot. To prevent infestations, keep the plant healthy and well-watered. If necessary, treat with an insecticide or fungicide.
Habitat
Frangula alnus subsp. alnus is native to Europe and western Asia and is commonly found in wetlands, along rivers, and in other moist habitats. It is often used for erosion control and habitat restoration.
Question and Answer
Q: Is Frangula alnus subsp. alnus toxic?
A: Yes, the plant contains compounds that can be toxic if ingested.
Q: Can Frangula alnus subsp. alnus be grown in a container?
A: Yes, the plant can be grown in a container, but it will not reach its full size.
Q: What is the best time to prune Frangula alnus subsp. alnus?
A: The best time to prune the plant is in the late winter or early spring.
Q: What is the hardiness zone for Frangula alnus subsp. alnus?
A: Frangula alnus subsp. alnus is hardy in USDA zones 3 to 7.
Related Plants
- Frangula alnus
- Frangula californica
- Frangula caroliniana
- Frangula purshiana
References
- Missouri Botanical Garden: Frangula alnus subsp. alnus
- RHS: Frangula alnus subsp. alnus
- University of Connecticut Plant Database: Frangula alnus subsp. alnus
