Botanical Name: Prunus spinosa
Common Name: Sloe Plum, Blackthorn, Wilplum, Wild Cherry, Abrunheiro
Family: Rosaceae
€2.16
Prunus spinosa is a hardy, deciduous shrub or small tree native to Europe, western Asia, and parts of North Africa, widely known for its dense, thorny growth and early spring blossoms. It typically reaches 2 to 5 meters in height, forming a tangled, spreading habit with dark, rigid branches armed with sharp spines, making it an excellent choice for hedging and wildlife habitat.
In early spring, before the leaves emerge, the plant is covered in masses of small, white, five-petaled flowers that provide an important nectar source for pollinators. These are followed by small, round fruits known as sloes, which ripen to a deep bluish-black with a waxy bloom. The fruits are very astringent when fresh but are traditionally used in preserves, syrups, and the production of sloe gin after exposure to frost or processing.
Prunus spinosa thrives in full sun to partial shade and is highly adaptable to a wide range of soils, including poor or calcareous conditions, as long as drainage is adequate. It is extremely hardy and tolerant of wind and cold, making it suitable for temperate climates.
Prunus spinosa
The seeds of cherries, peaches, and plums have a dormancy that must be broken for successful germination. This process requires a little patience, but if you follow the correct procedures, you will achieve satisfactory results.
Pre-treatment:
To begin the stratification procedure, the seeds should be soaked in warm water for 24 hours and then dried.
Next, the seeds need to be stratified in the refrigerator for 12 to 16 weeks (90 to 120 days). Use a high-quality, pathogen-free substrate that is suitable for seed germination. We suggest a 50/50 mix of perlite and peat or vermiculite.
Stratification should be performed in a damp environment, not a soaked one. If you squeeze the substrate in your hands and water drips out, it is too wet. Mix the seeds with the substrate in a plastic container with a lid, and place it at the bottom of the refrigerator, where the temperature typically stays around 5°C. Alternatively, you can use a clear Ziploc bag or a regular plastic bag that is loosely knotted.
After this pre-treatment period, the seed coats should begin to open. It is also possible for some seeds to germinate while in the refrigerator. If this happens, carefully remove and plant them.
Planting:
Use a good-quality substrate and plant the seeds about 8 to 10 mm deep. Keep the container at room temperature (between 18°C and 24°C), and germination should begin within two weeks.
Newly sown seeds should not be exposed to high temperatures (above 25°C), as this can induce a new dormancy period.
Keep the seedlings adequately moist and free of weeds. Growth in the first year is typically between 40 and 60 cm.
Protect and acclimate small seedlings before planting them in their permanent location.
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