Gambel Oak (Quercus gambelii)

Gambel Oak

Also known as: Oak Brush, Blue Oak, Iron Oak

The gambel Oak is a small deciduous tree that also goes by the name scrub oak or Quercus gambelii. Gambel Oak is found throughout the lower mountains of the Western United States. It provides food for many small animals in these locations.

Scientific classification

Species

Gambel Oak (Quercus gambelii)

Beeches, walnuts, and allied trees

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Toxic to Humans

Toxicity

Perennial

Lifespan

Tree

Plant Type

Spring, Early summer

Bloom Time

91 cm to 9 m

Plant Height

4.5 m

Spread

Green, Red, Brown

Leaf Color

2.5 cm

Flower Size

Yellow, Green, Red

Flower Color

Winter dormancy

Dormancy

Evergreen, Deciduous

Leaf type

Images of Gambel Oak

Attributes of Gambel Oak

Growth Rate

Gambel Oak's slow growth rate in the spring and summer seasons is reflected in its steady increase in height, its gradual leaf production and its unhurried flowering process. Its growth, albeit slow, ensures a well-composed structure, durability and longevity, providing a valuable ecological resource throughout these active periods.

Distribution of Gambel Oak

Distribution Map

Gambel Oak is native to North America, specifically within the major region corresponding to the southwestern United States and parts of the adjacent northern plateau. It has not been widely introduced or naturalized outside of its native range, maintaining a presence predominantly within its original geographic bounds.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Montane conifer, oak-maple, and higher margins of pinyon-juniper woodlands

Hemisphere Trend Curve

Northern

Sorthern

Culture

Symbolism

Protection, Health, Money

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Toxicity

Gambel Oak has toxicity to humans, cats, and dogs due to tannins in leaves and acorns, leading to symptoms such as gastrointestinal upset and excessive urination. Children, cats, and dogs may consume fallen leaves or seeds in parks or yards. Immediate veterinary care is essential for pets showing symptoms of poisoning after ingestion. Prevention is key for safety. Gambel Oak affects kidneys at worst.

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Care Guide for Gambel Oak

Every 2-3 weeks

Water

Full sun

Sunlight

5 - 35 ℃

Ideal Temperature

Water: Gambel Oak is suited to semi-arid climates, thriving with deep, infrequent watering every 2-3 weeks. Drought-tolerant, it prefers drier roots, making it ideal for xeriscaping. Its adaptability to variable soil moisture allows it to flourish outdoors in water-wise gardens.

Fertilize: To promote healthy growth of gambel Oak, apply balanced fertilizer in spring and switch to high nitrogen mid-season. Fertilize biannually, adhering to guidelines based on size. Monitor for deficiencies and avoid over-fertilizing, especially in younger plants. Adjust practices seasonally and water thoroughly after fertilization.

Pruning: Gambel Oak are deciduous trees suitable for rocky soils, featuring leathery leaves. Prune from early to late winter when dormant, focusing on removing dead wood, thinning branches, and enhancing structure. This reduces stress, lowers pest risks, and improves air circulation for healthier growth.

Propagation: Gambel Oak propagates best in Spring using cutting and layering methods. Maintain adequate moisture and warmth for moderate propagation success. New foliage growth indicates successful rooting.

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Images of Gambel Oak

Attributes of Gambel Oak

Distribution of Gambel Oak

Culture

Toxicity

Care Guide for Gambel Oak

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