Sawtooth oak - Quercus acutissima (Care, Characteristics, Symbolism, Images, Toxic)

Sawtooth oak

Also known as: Japanese silkworm oak

Sawtooth oak (Quercus acutissima) is an Asian oak species that is native to China, Korea, Japan, Vietnam, Thailand, and Cambodia. Sawtooth oak wood can be used to make charcoal used in Japanese tea ceremonies.

Scientific classification

Species

Sawtooth oak (Quercus acutissima)

Beeches, walnuts, and allied trees

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Toxic to Humans

Toxicity

Perennial

Lifespan

Tree

Plant Type

Spring

Bloom Time

Fall

Harvest Time

30 m

Plant Height

12 m to 18 m

Spread

Green, Yellow

Leaf Color

2.5 cm

Flower Size

Brown, Copper

Fruit Color

Yellow, Green, Gold

Flower Color

Silver, Red, Gray, Burgundy

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

10 - 35 ℃

Ideal Temperature

Spring

Growth Season

Moderate

Growth Rate

Images of Sawtooth oak

Culture

Garden Use

The versatile sawtooth oak provides endless interest in woodland gardens, especially with its colorful autumn foliage. Its large branches make it a great shade tree or specimen tree. You can also plant it in butterfly or wildlife gardens since its spring blooms and acorns are popular food sources for butterflies, birds, and squirrels.

Symbolism

Protection, Health, Money

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Toxicity

Sawtooth oak causes toxic reactions in humans, cats, and dogs if ingested. In humans, symptoms include an upset stomach, diarrhea, and extreme thirst due to tannins. Cats and dogs may also experience gastrointestinal upset, vomiting, or diarrhea after consuming leaves or seeds. Immediate veterinary care is essential if pets show signs of poisoning.

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Quickly Identify Sawtooth oak

Tree reaches 40-60 feet (12-18 meters), with a distinctive trunk bark displaying corky ridges and furrows.

Leaves are dark green, lance-shaped, and adorned with bristle-tipped marginal teeth.

Male flowers appear as yellowish-green, golden, pendant catkins measuring 2-4 inches (5-10 cm).

Acorns are 1 inch (2.5 cm) long, held in spiny cups covering two-thirds of each nut.

Twig stems have red to gray-brown color, triangular twigs, and pyramidal, imbricate buds.

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Care Guide for Sawtooth oak

Every 1-2 weeks

Water

Full sun

Sunlight

10 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Sawtooth oak, native to East Asia, prefers consistent moisture and withstands short dry spells. Water every 1-2 weeks to mimic its natural rhythm. Thriving in temperate climates, sawtooth oak has fluctuating water needs, requiring less during its winter dormancy.

Fertilize: For sawtooth oak, fertilization promotes growth and vitality. Use balanced fertilizers, switching to high nitrogen in early growth stages. Apply annually in spring, adjusting for young and mature plants. Always water after fertilization to prevent root burn and ensure effective nutrient absorption.

Pruning: Sawtooth oak has serrated leaves and acorns. Prune in early spring to shape, remove dead branches, and improve air circulation. Regular pruning enhances structure and prevents disease. Sterilize tools to avoid infections. For more guidance, consult reputable sources like the Arbor Day Foundation.

Propagation: Sawtooth oak can be propagated via hardwood cuttings, layering, and sowing seeds, particularly in Autumn and Winter. Moderate difficulty is associated with this process. Successful signs include healthy roots and new growth, with moisture management as a key tip.

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Images of Sawtooth oak

Culture

Toxicity

Quickly Identify Sawtooth oak

Care Guide for Sawtooth oak

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