Cedar Korean Pine Cultivation

2023 Author: Sebastian Paterson | [email protected]. Last modified: 2023-07-30 21:03

Korean Pine - Pinus koraiensis Siebold et Zucc

It is often also called incorrectly - Korean cedar, or Manchu cedar pine, in Latin - Pinus koraiensis Siebold et Zucc.

Extremely similar to Siberian pine (cedar). Outwardly, it differs in significantly larger cones: 10-15 cm in length and 5-9 cm in width, which, without opening, fall to the ground in October-November.

On mature trees located in the forest, their maximum number is up to 150 pieces per trunk, but on average it is much less, about 25. However, on trees standing free, there can be tens of times more cones. Each cone weighs 95-140 grams.

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In addition, this breed is distinguished by larger, angular triangular gray-brown seeds 12-17 mm long and up to 12 mm wide. Their mass reaches 54% of the weight of the cone, and the weight of the shell is 66-71% of the total weight of the seed. The weight of 1000 pieces of Korean pine seeds is approximately 500-700 g, i.e. there are about two thousand of them in 1 kg. For the successful renewal of Korean pine, like Siberian pine, autumn sowing of seeds is desirable. On the ridges, her seedlings should be kept for at least two to three years.

The bark on the trees is thick, smooth, black-brown or pinkish-gray. Needles 70-150 mm long, collected in bundles of 5 pcs. In the plantation, trees begin to bear fruit at 40-50 years. Bountiful harvests occur every three years on average. Korean pine can grow on lean soils, but then it is unproductive. It develops best on thick drained loams. Reaches 40-42 m in height and one meter in diameter.

Lives up to 400 years or more. It grows extremely slowly up to 10-12 years. The wood is pinkish, similar to the wood of Siberian pine, but more beautiful than the latter, therefore it is valued somewhat higher, it is used as a building and ornamental material. The nucleoli contain up to 65% of "cedar" oil, or 20.5% of the weight of the whole nut with shell.

However, the real yield of oil during its production is only 14%. From the remaining nut cake, nut milk and cream are obtained. Grows in the Far East in the Amur and Ussuri forests. The western border of the distribution runs along the Ussuri, Amur and Bureya rivers, the northern one at about 52 ° N, the eastern border along the Pacific coast, and the southern border along the border with China and the DPRK.

Korean pine is a valuable park tree for landscape design, but in the European part of the country in gardens and parks it is very rare. Some of its adult specimens are available in arboretums of botanical gardens. Its winter hardiness is lower than that of Siberian pine, but still sufficient for growing in the Leningrad region and other regions of the Northwest.

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Korean pine seeds are often found when buying "pine nuts" in trade organizations, so when growing "cedars" from seeds, seedlings of this breed can often be obtained. Korean pine has a number of advantages over Siberian pine - larger cones and seeds, increased oil content in them. In addition, she has abundant fruiting more often, and the yield is higher.

Read the next part. The healing properties of Korean pine →