The Manchurian walnut tree in Ravila Park is one of the largest in Estonia in terms of diameter.
MANCHURIAN WALNUT Juglans mandshurica
Distribution: Far East.
Size: 20-25 m, trunk diameter up to 1 m.
Crown: In stands, the crown is short, erect, and sparse. When growing freely, it has a spreading rounded crown.
Bark, twigs: The bark of the trunk is dark gray and fissured. Young twigs are densely brown hairy. Buds are large and brown. Pith with diaphragms.
Leaves: Alternate compound leaves, up to 1 m long, with 11-19 leaflets, finely serrated. Leaflets are lanceolate, with parallel margins in the center, long and finely pointed at the tip, yellowish-green, and hairy when young. They emerge in late May and fall in September.
Flowers and fruits: It blooms during leaf emergence. Male flowers are in thick hanging yellowish-green catkins, located at the base of young shoots. Female flowers are clustered in groups of 5-15 on long stalks at the tip of young shoots. The fruit is a drupe, initially covered with a fleshy husk that later dries out, leaving a dry nut. The fruits are 4-6 cm long, round or elongated, with a pointed tip, and sticky brown hairy. They ripen in late September, early October.
Growing conditions: Cold-resistant but susceptible to late frosts. Shade-tolerant when young but demands light later. Prefers fertile, moist soils. Lifespan up to 200 years.
Uses: Highly valued timber used in carpentry. The nuts are used in the food industry. Also commonly used in landscaping.
Cultivation in Estonia: Cultivated as an ornamental tree in parks
Allikas: https://www.hariduskeskus.ee/opiobjektid/dendro/mandzuuria_pahklipuu.html
