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Search Results for ' Sciadopitys verticillata'
PAL Questions: 2 - Garden Tools:
How can I propagate a Japanese umbrella pine?
Peter Thompson's book, Creative Propagation (Timber Press, 2nd ed., 2005), states that Sciadopitys verticillata can be propagated by seed or by cuttings (the latter method in autumn, early winter, or early spring). Seeds will grow into the form inherited from the parent trees; cuttings vary. On page 153 of his book, Thompson says that the cuttings can be taken from almost any part of the plant, but he recommends using cuttings from the leader shoot in order to get a symmetrical tree with an upright leader.
An article entitled Growth Response of Umbrella Pine as Influenced by Temperature, Photoperiod and Chilling (Journal of Environmental Horticulture, December 1985) discusses propagating Sciadopitys from seed.
There is information on propagation which comes from the USDA Forest Service National Seed Lab's profile of Sciadopitys verticillata (no longer available online). Here is an excerpt:
"The seeds should be sown in the fall or stratified for sowing in the spring. Umbrella-pine is not easy to grow and is extremely slow-growing when propagated from seed (Halladin 1991). It has a tendency to form several leaders. Field planting has been done with 3+2 and 4+2 stock (Dallimore and Jackson 1967). Umbrella-pine can also be propagated by layers or by cuttings of half-ripened wood in summer (Bailey 1939). A nursery in Oregon propagates solely by cuttings because of faster results; Halladin (1991) describes the technique in detail."
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Keywords: Sciadopitys verticillata
My neighbor wants to give us a prized Sciadopitys, 5-6' high. In transplanting this cultivar now in Skagit County, what would you recommend? How tall do these get in the Pacific Northwest?
Sciadopitys verticillata is listed in Great Plant Picks, a website of plants recommended for our area. Here is what they have to say about this tree:
The thick, dark green needles of this unusual evergreen conifer are held like the ribs of an umbrella around its stems, giving it a unique appearance. It is very slow-growing and columnar in shape, which makes it suitable for small gardens. Japanese umbrella pine (or parasol pine) creates an eye-catching accent in the landscape. Despite its common name, this is not a true pine (genus Pinus). Like the dawn redwood, Sciadopitys was once widespread, even growing in Europe, where it is seen in the fossil record. Due to climate changes and competition, its native range was reduced to a few towns in central Honshu, in japan. However, it has been grown around monasteries in Japan for centuries. This species is the only one in the genus.
Japanese umbrella pine grows well in full sun or part shade. It prefers acidic soil that is well-drained (sandy is ideal) with some organic matter. In very hot or windy sites, it may sustain damage to its thick needles.
Japanese umbrella pine is an evergreen, coniferous tree. Its habit is columnar to pyramidal, growing 6 to 7 feet high and 3 feet wide in ten years. While it reaches 120 feet in the mountains of Japan, in cultivation it is seldom taller than 30 feet, with a spread of about 10 feet.
USDA zones 6 to 8
As for transplanting, University of Wisconsin's Master Gardener manual says to transplant balled and burlapped or container-grown plants, and plant in rich, moist, acid soil in a sunny, open spot. Wind protection is essential, and you should avoid hot spots with intense afternoon sun. It is slow-growing, and drought tolerant once established.
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August 03 2016 12:06:47