Pseudotsuga Menziesii - Douglasir
- Pseudotsuga menziesii - Douglasir
Pseudotsuga menziesii - Douglasir
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Douglasfir wächst 150 bis 200 Fuß und verbreitet 12 bis 18 Fuß. Der Baum bevorzugt einen sonnigen Standort mit einem feuchten Boden. Douglasfir transplantiert gut ballig und rülpsen und hat eine schnelle Wachstumsrate. Es toleriert Wind, Schnitt und Scheren, toleriert aber keinen trockenen Boden.
Kultivare sind: 'Anguina' - lange, schlangenartige Äste; "Brevifolia" - kurze Blätter; 'Compacta' - kompaktes, konisches Wachstum; "Fastigiata" - dicht, pyramidenförmig; 'Fretsii' - dichter Busch, kurze, breite Blätter; Glauca - bläuliches Laub; 'Nana' - Zwerg; 'Pendula' - lange, hängende Zweige; "Revoluta" - gekräuselte Blätter; 'Stairii' - bunte Blätter.
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FAQ - 💬
❓ Where does Douglas fir grow best?
👉 Douglas-fir grows best on well-drained deep soils and will not thrive on poorly drained or compacted soils. Along the coast it is mostly found where marine sandstones and shales have weathered deeply to fine-textured, well drained soils. Douglas-fir is found on a wide variety of soils in the Sierra Nevada.
❓ What is Douglas fir most commonly used for?
👉 Douglas-fir is a high-quality wood for the manufacturing of sashes, doors and windows. It is also used to produce a wide variety of products including general millwork, flooring, furniture, cabinets, veneer, vats, ships and boats, transmission poles and marine pilings.
❓ How old is my Douglas fir?
👉 Estimating tree age can be done through the use of the species' growth factor. For instance, the growth factor for Douglas Fir trees is 5. This means that in 5 years, the tree's diameter at 4.5 to 5 feet above ground increases by one inch.
❓ What soil is best for Douglas fir?
👉 Soil Preference The Douglasfir prefers acidic or neutral soil that is well-drained, thought it can also be found in its native habitat of rocky mountain slopes. It is sensitive to drought.
❓ Is Douglas-fir better than cedar?
👉 Douglas fir's strength is one of its best features, and the wood has been used in everything from fencing, decking, structural joists, and even boats and aircraft. Douglas fir is better than cedar in terms of structural strength. Douglas fir is often ranked as one of the strongest softwoods after Southern Yellow Pine.
❓ Is Douglas-fir a good tree?
👉 This fir species is one of the most popular ornamental and Christmas trees as well as one of the best timber trees in North America.
❓ What are the disadvantages of Douglas fir?
👉 Cons. Like all softwoods, one issue that can be a negative is that the Douglas Fir wood is, as the softwood name implies, softer than hardwoods. This can mean that the wood can be more easily damaged, so care must be taken in milling, handling, and transporting the lumber.
❓ How long does Douglas fir last outdoors?
👉 It's also naturally resistant to rot, decay, and insects. According to research done by the University of California's Division of Agriculture and Natural Resources, completely untreated Douglas fir will last 10-15 years in outdoor uses.
❓ What tree makes the best Christmas tree?
👉 The species of fir trees considered best for Christmas purposes include Nordmann Fir, Noble Fir, Fraser Fir, Douglas Fir, Spanish Fir, and Balsam Fir. These types of fir trees are suitable since they have aromatic foliage. They also do not shed many of their needles when they get dry.
❓ What animal eats Douglas Fir?
👉 Use by animals Douglas-fir seeds are an extremely important food source for small mammals such as moles, shrews, and chipmunks, which consume an estimated 65% of each annual seed crop.
❓ Do Douglas fir trees need a lot of water?
👉 You'll need to water between one and four times each month, depending on rainfall and how the soil holds water. You'll do best planting a Douglas fir tree in a shady area. Either part shade or full shade will work fine. Be certain that the soil is deep, moist, and well-drained.
❓ What is Pseudotsuga menziesii?
👉 Mexican Douglas-fir ( P. lindleyana ), which ranges as far south as Oaxaca, is often considered a variety of P. menziesii . Fossils (wood, pollen) of Pseudotsuga are recorded from the Miocene and Pliocene of Europe ( Siebengebirge, Gleiwitz, Austria).  It is also naturalised throughout Europe,  Argentina and Chile (called Pino Oregón ).
❓ How many species of Pseudotsuga are there?
👉 species of tree. Pseudotsuga menziesii is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is known as Douglas fir, Douglas-fir, Oregon pine, and Columbian pine. There are two varieties: coast Douglas-fir (P. menziesii var. menziesii), and Rocky Mountain Douglas-fir (P. menziesii var. glauca).
❓ Where do Pseudotsuga trees grow in California?
👉 native range of Pseudotsuga menziesii. Green denotes the coastal variety, Blue denoting the interior variety. Distribution. The typical variety, coastal Douglas-fir (Pseudotsuga menziesii var. menziesii), grows in the coastal regions, from west-central British Columbia southward to central California.
❓ How big do seedlings of Pseudotsuga grow?
👉 Seeds measure 0.2 to 0.24 inch (5 – 6 mm) long and 0.12 to 0.16 inch (3 – 4 mm) broad, with a 0.48 to 0.6 inch (12 – 15-mm) wing. native range of Pseudotsuga menziesii. Green denotes the coastal variety, Blue denoting the interior variety. Distribution.
Autor Des Artikels: Alexander Schulz. Unabhängiger Konstrukteur und technischer Experte. Arbeitserfahrung in der Baubranche seit 1980. Fachkompetenz in den Richtungen: Bau, Architektur, Design, Hausbau.