Species Siberian Alder

Siberian Alder

Alnus alnobetula subsp. fruticosa

The Siberian Alder (Alnus alnobetula subsp. fruticosa) is a small deciduous shrub that is native to northern Asia. It grows in moist areas, including along riverbanks. The shrub can reach a height of up to 10 feet and has thin gray or gray-brown bark. Its leaves are round or obovate with finely serrated edges, borne in alternate fashion. The small, greenish-yellow flowers appear in early spring and are followed by oval-shaped, woody cones. The Siberian Alder is a popular choice as an ornamental shrub due to its lush foliage, elegant shape, and attractive flowers and fruits.

Watering:

Frequent

Propagation:

Cutting,Grafting Propagation,Layering Propagation,Seed Propagation

Hardiness Zone:

Sun:

full sun,part shade

Cones:

Yes

Leaf:

Yes

Leaf Color:

green

Growth Rate:

Low

Drought Tolerant:

Yes

Salt Tolerant:

Yes

Invasive:

Yes

Care Level:

Medium

watering

Watering recommendations for Siberian Alder (Alnus alnobetula subsp. fruticosa) differ depending on the soil type, exposure and other environmental conditions. In general, the plant will require regular watering to keep the soil moist but not soggy. It should be watered deeply once or twice a week.

sunlight

Siberian Alder prefers full sun and should receive 6-8 hours of direct sunlight each day. Since it is a deciduous species, it tolerates partial shade, but growth will be slower with fewer hours of sunlight. Soil moisture should be kept slightly moist, not completely dry or saturated. During the hottest months of summer, Siberian Alder should be kept in the shade in order to protect its delicate foliage.

pruning

For Siberian Alder, pruning should be done lightly in late winter or early spring in order to maintain shape and size. Remove dead, damaged or diseased branches, and any branches that may be growing in the wrong direction. To limit the height of your Siberian Alder shrub, thin out the crown, removing 2 or 3 of the biggest branches each year. Prune side shoots to 5-7 leaves, as this encourages growth of main branches. Prune after flowering and never cut more than a third of the total growth at 1 time.