Douglas fir.

De un vistazo

Nivel de cuidados

Fácil

Tipo de planta

Conifer

Luz

Full sun

Luz en interior

Sol directo

Riego

Cada 7 a 14 días

Tamaño adulto

200 feet

Ritmo de crecimiento

Medio

Rusticidad

USDA 4 a 7

Floración

Mid to late spring

Cuidados

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.

Riego

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

Abonado

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

Poda

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

Trasplante

This tree is not suitable for container growth long term.

Suelo

Well drained acidic soil

pH del suelo

5.0 to 6.0

Temperatura

-35 a 35°C

Humedad

40 a 80%

Tolerancia a la sequía

Moderada

Longevidad

Long lived, often 500 plus years

Fragancia

Suave

Resistencia a ciervos y conejos

Moderada

Seguridad

Personas

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

Niños

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

Alérgenos por contacto

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

Alérgenos en el aire

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

Comestibilidad

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

Cómo identificarla

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

Altura

20 a 70m

Anchura

6 a 10m

Hojas

dark green, blue green, evergreen

Flores

yellow, red, 1 a 3cm

Frutos

brown, Autumn

Problemas frecuentes

• 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.

Cómo cultivarla

Propagación

seed

Cuándo plantar

Spring, Autumn

Cuidados en invierno

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

En maceta

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.

Buenas compañeras

• Cedro rojo occidental — They often grow together in native forest ecosystems.
• Gaultheria shallon — This shrub thrives in the acidic soil conditions found beneath these trees.

Especies parecidas

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

Ciencia

Familia

Pinaceae

Género

Pseudotsuga

Orden

Pinales

Clase

Pinopsida

Distribución natural

Western North America

Conservación

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.

Valor para la fauna

nesting site, seed source for birds, larval host plant

Polinizadores

abejas

Usos

timber production, ornamental specimen, windbreak, christmas tree

Taxonomía cotejada con GBIF.

Lo que más preguntan

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.

De dónde viene el nombre

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

Bueno saberlo

• 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.