What is the stone pine in bonsai?

The Swiss stone pine variety (Pinus cembra), also known as the Alpine stone pine or Siberian stone pine, is a species of pine that is often used in bonsai. This slow-growing pine tree is native to the mountainous regions of Europe and Asia.
As a bonsai tree, stone pine offers many attractive characteristics. Here are some key points to know about this bonsai strain:
1. Size and shape : Swiss stone pine is slow growing and compact, making it a popular choice for bonsai trees. It develops a conical or pyramidal shape, with short, dense branches.
2. Foliage : The needles of the stone pine are grouped in pairs, usually measuring 5 to 8 cm in length. They are bright green and retain their color all year round, providing consistent visual appeal.
3. Bark : The bark of the stone pine is smooth and silvery-gray when young, but it gradually develops cracks and crevices with age, giving it an interesting texture.
4. Cones: The cones of the stone pine are small in size, usually 4 to 7 cm in length. They are light brown in color when mature and can remain on the tree for several years.
5. Cold tolerance : Swiss stone pine is suitable for cold climates and can withstand extremely low temperatures. This cold hardiness makes it an attractive choice for bonsai enthusiasts living in areas with harsh winters.
6. Care & Maintenance : As with any bonsai, the stone pine in bonsai requires careful care, including regular pruning to maintain the desired shape and proper watering. It prefers well-drained soils and exposure to full sun or partial shade.
Due to its compact size, slow growth, and rustic beauty, the stone pine is popular with bonsai enthusiasts who want to create miniature landscapes that capture the essence of mountainous regions. Its sleek appearance and ability to tolerate cold conditions make it an attractive choice for bonsai collectors around the world.

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