Frangula alnus
Frangula alnus
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Description
Frangula alnus, commonly known as Alder Buckthorn, is a deciduous shrub native to Europe, western Asia, and northern Africa. It thrives in wetland areas, often found along riverbanks and in damp woodlands. This plant has a rich history, having been used by various cultures for its medicinal properties. Its smooth, dark bark and glossy leaves give it a distinctive appearance. In spring, it produces small, inconspicuous greenish flowers that attract a variety of pollinators. By autumn, these flowers transform into dark purple to black berries, which are a food source for birds. In regenerative agriculture, Frangula alnus plays a role in supporting biodiversity and improving soil health. Its deep roots help stabilize soil, preventing erosion, and its presence in hedgerows provides habitat for wildlife. The plant's ability to thrive in poor soils makes it a valuable component in ecological restoration projects. As the seasons change, Alder Buckthorn's leaves turn a vibrant yellow, adding a splash of color to the landscape. Its potential future role in sustainable agriculture includes enhancing biodiversity corridors and serving as a natural barrier in agroforestry systems.
Growing Details
Frangula alnus is relatively easy to grow, preferring moist, well-drained soils but adaptable to a range of soil types, including clay and sandy soils. It thrives in full sun to partial shade. Propagation is typically done through seeds, which should be stratified before planting to improve germination rates. Cuttings can also be used for propagation. Regular watering is necessary during the establishment phase, but once established, the plant is quite drought-tolerant. Minimal fertilization is required, and pruning can be done in late winter to maintain shape and encourage bushier growth. It is important to monitor for potential invasive behavior in certain regions.
Tags
Hedge
Carbon Farming
Attracts Wildlife
Windbreak
Erosion Preventing
Bee Friendly
Invasive
Visual Appeal
Easy Propagating
Colouring
Tea
Range (Based on GBIF Data)
The map shows known occurrence points of <strong>Frangula alnus</strong> recorded in scientific biodiversity databases.
Source: <a href="https://www.gbif.org" target="_blank">GBIF.org</a> โ Global Biodiversity Information Facility
Location & Timing
native geo location: Europe, W. Asia
applicable geo region: Temperate regions
language used: english
Flowering:
middle
of May for 30 days
Harvest:
middle
of September for 30 days
Seed Start:
beginning
of March
Indoor Start:
Transplant:
Uses & Benefits
Edible Rating:
(1/5)
edible uses: While the berries of Frangula alnus are not commonly consumed due to their laxative properties, they have been used historically in small quantities. The berries can be dried and used to make a mild tea, though caution is advised due to their potent effects. They are not typically used in culinary applications due to their bitter taste and potential toxicity when consumed in large amounts. The berries are more often left for wildlife consumption, providing a food source for birds during the autumn months.
Medicinal Rating:
(3/5)
medicinal uses: Frangula alnus has been used in traditional medicine primarily for its laxative properties. The bark, when aged for at least a year or heat-treated, is used to make teas and tinctures that aid in relieving constipation. The active compounds, including anthraquinones, stimulate bowel movements. Historically, it has been used in European folk medicine, and modern research supports its efficacy as a natural laxative. It is important to use the bark correctly to avoid potential irritation or toxicity. The plant has also been explored for its potential anti-inflammatory and antimicrobial properties.
health concerns: The berries and fresh bark of Frangula alnus can be toxic if consumed in large quantities. The bark must be aged or heat-treated to reduce its potential to cause gastrointestinal irritation. Pregnant women, nursing mothers, and young children should avoid using this plant medicinally. Symptoms of overconsumption include nausea, vomiting, and severe diarrhea. If ingested inappropriately, seek medical attention immediately.
other uses: Beyond its medicinal applications, Frangula alnus has been used for various non-food purposes. The bark yields a yellow dye, historically used in textile production. The wood, although not durable, can be used for small crafts and tool handles. In ecological landscaping, it serves as an excellent hedge plant, providing privacy and windbreaks. Its dense growth habit makes it suitable for erosion control on slopes and riverbanks. The plant's ability to attract beneficial insects and birds makes it a valuable addition to wildlife gardens and biodiversity projects.
Scientific Literature
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Botanical data
specie: Frangula alnus
common names: Kruลกina
family: Rhamnaceae
sub family:
tribe:
sub tribe:
genus: Frangula
Growing Conditions
area needed: 1.0 m
spacing: 1.5 m
growing difficulty: Low
Deciduous / Evergreen: Evergreen
Seed Temp (Opt/Min/Max): 20ยฐC / 15ยฐC / 25ยฐC
Plant Temp (Opt/Min/Max): 18ยฐC / -15ยฐC / 30ยฐC
water demands: Medium
humidity: High
light demands: Medium
root type: Medium
frost tender: Low
hardness:
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(5/10)
first harvest: 3 years
life span: 20 years
succession: Mid
growth rate: Medium
max height: 5.0 m
max width: 3.0 m
soil preference:
Medium (Loam)
pH preference:
Neutral
flower type:
Hermaphrodite
growth details: Frangula alnus is relatively easy to grow, preferring moist, well-drained soils but adaptable to a range of soil types, including clay and sandy soils. It thrives in full sun to partial shade. Propagation is typically done through seeds, which should be stratified before planting to improve germination rates. Cuttings can also be used for propagation. Regular watering is necessary during the establishment phase, but once established, the plant is quite drought-tolerant. Minimal fertilization is required, and pruning can be done in late winter to maintain shape and encourage bushier growth. It is important to monitor for potential invasive behavior in certain regions.
Potential Disturbances: Frangula alnus is generally resistant to many common pressures but can occasionally face challenges from aphids and caterpillars. Aphids can be managed by encouraging natural predators like ladybugs or using insecticidal soap. Caterpillars can be handpicked or controlled with biological agents.
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