Betula pendula SILVER BIRCH (25 seeds)

Birch is a hardy tree belonging to the Betulaceae family. It can reach up to 25 meters in height and is known for its rapid growth.
It is commonly cultivated alongside other trees such as ash or linden.

Silver birch seeds come from Betula pendula; they are very small, measuring only 2 millimeters in length. They are elongated and feature two light brown wings that allow them to be disseminated by the wind.

It possesses light, graceful foliage consisting of oval leaves with serrated margins. They are light green in summer, turning yellow in autumn.

Flowering occurs in spring, shortly before or after the buds open. The drooping male catkins release pollen in abundance, while the female catkins are smaller and less conspicuous.

The trunk is slender and elegant, with white to grayish bark that fissures into thin plates, giving it a papery appearance. The texture is smooth when young, becoming more cracked with age.

The fruits are elongated samaras carried by catkins. They detach easily in autumn, dispersing the seeds via the wind. These samaras are lightweight, allowing for wide distribution.

- Properties / Uses:

The light and flexible wood of the silver birch is highly valued in woodworking and crafts. It is used to make decorative objects, small furniture, or traditional musical instruments, thanks to how easy it is to work with.

It is often planted in parks and gardens for its elegant silhouette and attractive white bark. It brings an aesthetic and bright touch, especially in winter when it loses its leaves.

- Germination and Sowing:

• The most favorable time to sow birch tree is starting in early March.
• Stratify the seeds either naturally outdoors starting in March, or artificially by placing them in the freezer for at least one full month.
• Prepare a tray of seed-starting compost and sprinkle the seeds on top without covering them.
• Water delicately and place the tray in a greenhouse at a temperature of 25°C.
• Germination generally begins 2 to 3 weeks after the stratification process.

- Soil Type and Substrate:

It prefers a well-drained, rather light substrate enriched with organic matter. It thrives best in slightly acidic to neutral soil (pH 5.5 to 7). Compact or clay-heavy soil should be amended to ensure proper growth.

- Exposure and Light:

This birch loves to be planted in full sun to promote vigorous growth and dense foliage. It can tolerate light shade.

- Temperature and Hardiness:

This tree is extremely hardy and can withstand cold temperatures down to -35°C. It prefers a temperate climate with cold winters and moderately warm summers.

- Watering and Irrigation:

Watering must be regular, especially during the first year after planting, to ensure good root establishment. Subsequently, the soil should be kept slightly moist, but stagnant water must be avoided. During prolonged droughts, watering is recommended to preserve the tree's health.

- Propagation:

Propagation is primarily done through seeds or cuttings. Cuttings can be attempted in summer by taking young shoots.

- Pests and Diseases:

The silver birch can be attacked by pests such as the birch leaf beetle, which causes defoliation, or by saproxylic insects. It may also be vulnerable to fungal diseases like leaf blight or root rot if the soil is poorly drained.