Douglas fir.

Auf einen Blick

Pflegestufe

Einfach

Pflanzenart

Conifer

Licht

Full sun

Licht im Innenraum

Direkte Sonne

Gießen

Alle 7 bis 14 Tage

Endgröße

200 feet

Wachstum

Mittel

Winterhärte

USDA 4 bis 7

Blütezeit

Mid to late spring

Pflege

Plant this tree in a spot with plenty of space for its eventual size. Keep an eye out for needle drop or yellowing which might suggest poor drainage. It is quite hardy once established in the ground.

Gießen

Water deeply during the first few years until the root system is well established.

Düngen

Apply a balanced fertilizer once in early spring to support healthy growth.

Schneiden

Remove dead or damaged branches in late winter while the tree is dormant.

Umtopfen

This tree is not suitable for container growth long term.

Boden

Well drained acidic soil

Boden-pH

5.0 to 6.0

Temperatur

-35 bis 35°C

Luftfeuchtigkeit

40 bis 80%

Trockenheitstoleranz

Mittel

Lebensdauer

Long lived, often 500 plus years

Duft

Leicht

Wildverbiss-Resistenz

Mittel

Sicherheit

Menschen

The plant is generally non toxic, though ingestion of large quantities of needles may cause mild digestive upset.

Kinder

The sharp needles can poke small children, so keep them away from low hanging branches.

Kontaktallergene

Handling the needles may cause mild skin irritation in sensitive individuals.

Allergene in der Luft

The pollen is a common airborne allergen during the spring release period.

Essbarkeit

The needles are sometimes used for tea, but ensure you have correctly identified the species as some conifers are toxic.

So erkennst du die Pflanze

• Soft needles with two white underside bands
• Cones have distinct three pointed bracts
• Dark gray bark with deep fissures
• Pyramidal shape when young

Höhe

20 bis 70m

Breite

6 bis 10m

Blätter

dark green, blue green, evergreen

Blüten

yellow, red, 1 bis 3cm

Früchte

brown, Autumn

Häufige Probleme

• Swiss needle cast — A fungal infection that causes yellowing and premature dropping of needles.
• Douglas fir beetle — A bark beetle that can cause significant damage to stressed or weakened trees.

Standort und Pflege

Vermehrung

seed

Pflanzzeit

Spring, Autumn

Überwinterung

No special winter care is required as it is fully hardy in its native range.

Im Kübel

It is not suitable for long term container growth due to its massive size.

Plant shade tolerant shrubs underneath to take advantage of the dappled light provided by the canopy.

Gute Pflanzpartner

• Westamerikanischer Riesen-Lebensbaum — They often grow together in native forest ecosystems.
• Gaultheria shallon — This shrub thrives in the acidic soil conditions found beneath these trees.

Ähnliche Arten

• Tsuga heterophylla — It shares a similar native range and forest habitat.

Botanisches

Familie

Pinaceae

Gattung

Pseudotsuga

Ordnung

Pinales

Klasse

Pinopsida

Ursprüngliche Heimat

Western North America

Artenschutz

This species is widely distributed and not currently of conservation concern.

It thrives in cool, moist climates and often dominates forests by outcompeting other species for light.

Nutzen für Wildtiere

nesting site, seed source for birds, larval host plant

Bestäuber

Bienen

Verwendung

timber production, ornamental specimen, windbreak, christmas tree

Taxonomie abgeglichen mit GBIF.

Häufige Fragen

How fast does it grow?

It grows moderately fast, often adding 30 to 60 centimeters per year in good conditions.

Can I grow this in a small yard?

It is generally too large for small residential gardens and is better suited for large landscapes.

Woher der Name kommt

The genus name Pseudotsuga means false hemlock, while the species epithet honors the Scottish botanist Archibald Menzies.

Gut zu wissen

• It is one of the tallest tree species in the world.
• The cones have unique three pointed bracts sticking out from under the scales.
• It is the state tree of Oregon.
• The wood is highly valued for construction due to its strength.
• It can live for over 500 years in ideal conditions.