How to Care for Abies Procera ‘Glauca’ (Blue Noble Fir)

Abies procera ‘Glauca’, commonly known as Blue Noble Fir, is a stunning evergreen conifer that makes for an eye-catching addition to any garden. With its blue-silver needles and attractive cones, this magnificent tree not only offers year-round interest but also serves as an excellent habitat for birds. In this article, we’ll take a closer look at the various aspects of caring for this Plant of Merit, including its botanical aspects, watering, light care, soil care, pruning, season and temperature, flowering, pests, and more. We’ll also discuss garden styles, companion plants, and answer some frequently asked questions.

Botanical Aspects

Growing Region

Native to the Pacific Northwest of the United States, the Blue Noble Fir thrives in USDA Hardiness Zones 5-6. This tree is well-suited to regions with cool, moist summers and cold winters.

Growth Rate, Height, Size, and Spread

Blue Noble Firs have a moderate growth rate and can reach an impressive height of 30-50 feet (9-15 meters) with a spread of 30-40 feet (9-12 meters). This makes them an excellent choice for creating a strong focal point in the landscape or as a windbreak in larger properties.


These trees require average watering, with a preference for consistent moisture. It’s essential to avoid letting the soil dry out completely, but also to prevent waterlogging, which can lead to root rot.

Light Care

Blue Noble Firs grow best in full sun, which allows them to develop a strong, symmetrical shape and maintain their vibrant blue-silver color.

Soil Care

These trees thrive in moist but well-drained, acidic to neutral soils, such as clay, loam, and sand. Good drainage is crucial to prevent root rot, while the right pH level ensures the tree can access necessary nutrients.


Generally, Blue Noble Firs require minimal pruning. However, you can remove any dead or damaged branches to maintain the tree’s health and appearance.

Season and Temperature

Blue Noble Firs are hardy trees that can withstand cold temperatures down to -20°F (-29°C), making them perfect for gardens in regions with harsh winters. They also appreciate the cooler, moist summers typical of their native Pacific Northwest habitat.


While not known for their flowers, Blue Noble Firs produce attractive, cylindrical cones that can reach up to 9 inches (23 cm) in length. These cones start as a purple-blue color and mature to a brown hue over time.


Blue Noble Firs are relatively pest-resistant, but they can occasionally be affected by aphids, adelgids, or bark beetles. Keep an eye out for signs of infestation and treat as necessary with appropriate control measures.


Tolerance and Resistance

These trees are known for their resistance to deer browsing and air pollution, making them a versatile choice for various garden settings.


Blue Noble Firs provide excellent shelter and nesting sites for birds, making them a valuable addition to any wildlife-friendly garden.

Garden Styles

The Blue Noble Fir’s unique color and texture make it a perfect addition to various garden styles, including informal and cottage gardens, prairie and meadow gardens, and traditional garden landscapes.

Companion Plants

When selecting companion plants for your Blue Noble Fir, consider species that enjoy similar growing conditions and provide interesting contrasts in color, texture, and form. Some excellent choices include Japanese Maples, Rhododendrons, Azaleas, and Ferns.

Frequently Asked Questions

Can Blue Noble Firs be grown in containers?

While it’s possible to grow Blue Noble Firs in containers, their large size and extensive root systems make them better suited for in-ground planting.

Are Blue Noble Firs suitable for small gardens?

Due to their large size and spread, Blue Noble Firs are better suited for medium to large gardens or properties where they have ample space to grow and develop.

Can I use Blue Noble Fir branches in holiday decorations?

Absolutely! The blue-silver needles of Blue Noble Firs make them a popular choice for wreaths, garlands, and other holiday decorations.


Abies procera ‘Glauca’ or Blue Noble Fir is a beautiful, eye-catching evergreen conifer that offers year-round interest and serves as a valuable habitat for birds. By understanding and providing the proper growing conditions, you can enjoy the stunning presence of this magnificent tree in your garden for many years to come.

Martin Duran

Hey y'all! My name is Martin Duran and I am from Cali, Colombia. Since 2018 I have been learning about plants and how to take care of them. Here's is my journey... “The clearest way into the Universe is through a forest wilderness.” ― John Muir

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