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Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i
Australian silky-oak (Grevillea robusta)-i

Australian silky-oak

Scientific name
Grevillea robusta

Basic Information

Proteaceae Family Grevillea Genus Australian silky-oak Species
Proteaceae > Grevillea > Grevillea robusta
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  • Broad-leaved tree
  • Tree
Height
3000cm ~
Flower Color
Leaf Color
Anthesis
spring
Sunlight Exposure
Full Sun
Hardiness Zones
9
Cold resistance
Fair
Heat resistance
Excellent
Habitat of origin
Australia
Growth Rate
Fast

What is Australian silky-oak (Grevillea robusta)?

What is Australian silky-oak (Grevillea robusta)

Australian silky-oak, known as Grevillea robusta scientifically, is native to Australia. It belongs in Proteaceae family. It is large, reaching about 30 meters high. The leaves look fern-like. They are dark green. This gives the elegant look to the tree. The flowers are bright orange or yellow. They bloom in groups. This brings birds and bugs to pollinate. The flowers have a unique design. They look like a toothbrush with long skinny petals. The tree is evergreen. It is used in landscaping often. This is for the nice leaves and flowers. Grevillea robusta grows well in different soils. It can grow in sandy or clay soils. It needs full sun. It needs normal watering. Dry times require more water. The tree makes small woody fruits. The fruits have seeds birds take away. The symbolism is strength and resilience. This reflects the strong and adaptable nature.

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Flower meaning

The Australian silky-oak, also known as Grevillea robusta, does not have a specific flower language commonly used in America. In other regions, this tree may convey unique meanings through the historical language of flowers. Regional flower customs shape the symbolic associations ascribed to plants. Cross-cultural perspectives allow us to appreciate the diverse symbolic meanings found in flora worldwide. The language of flowers springs from varied cultural traditions, so flexibility is required in interpreting different plants’ significance.

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Calendar of Australian silky-oak (Grevillea robusta)

Calendar

Australian silky-oak, also called Grevillea robusta, is native to Australia. The flowering period of Australian silky-oak in America depends on climate and location. It typically blooms late winter through early spring, February to April. The tree then produces bright clusters of golden-yellow blossoms attracting bees and birds. Blooming usually continues for weeks, decorating gardens. To extend flowering, supply well-drained soil, sunlight, and regular water. Pruning after blooms also promotes new growth and future flowers. Australian silky-oak beautifully enhances landscapes during its bloom season.

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How to grow Australian silky-oak (Grevillea robusta)

Watering

The Australian silky-oak plant requires regular watering during the growing season, typically spring and summer. Water deeply once a week, ensuring the water penetrates the root zone. The amount of water can vary depending on the size and soil type, but 1 to 2 inches per week is usually sufficient. During fall and winter, less frequent watering is needed. Allow the soil to dry out slightly between waterings to prevent overwatering and root rot. Monitor soil moisture and water when the soil dries out 2 inches deep. Providing the right amount of water based on the season will ensure the plant's health.

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Soil and Fertilizer

Australian silky-oak, scientifically known as Grevillea robusta, thrives in appropriate soil with a pH range. It tends right soil being moist yet not saturated, as extra wetness can source root decay. To guarantee ideal development, it is prescribed to apply a adjusted slow-discharge fertilizer. This ought to be finished in early spring and early pre-winter, the dynamic development times for the plant. During the principal year of planting, it is recommendable to apply a higher phosphate fertilizer, to advance root improvement. Normal soil testing is suggested to screen the pH and supplement levels in the soil. Changes can be made in like manner to keep up the ideal conditions.

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Sunlight and Place

Australian silky-oak scientifically Grevillea robusta plant thrives full sun exposure. Highly cold heat tolerant suitable wide climates. However important note extreme temperatures especially frost damage plant. Optimum temperature Australian silky-oak 60°F 80°F (15°C 27°C). Tolerate temperatures low 25°F (-4°C) high 100°F (38°C). Summer recommended provide some shade hottest part day prevent leaf scorching. Sunlight Australian silky-oak requires minimum 6 hours direct sunlight per day thrive. Important place plant location receive ample sunlight throughout day. Winter Australian silky-oak withstand cooler temperatures advisable protect freezing conditions. Mulching around base plant help insulate roots protect cold temperatures. Overall Australian silky-oak hardy plant tolerate wide temperatures requires good sunlight thrive.

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Advanced Information of Australian silky-oak (Grevillea robusta)

Pruning

Australian silky-oak, scientifically known as Grevillea robusta, benefits from regular pruning and cutting back to maintain its health and appearance. Removing dead or damaged branches, as well as shaping and controlling size, keeps the plant in peak condition. Cutting back can encourage new growth and better blooms. Late winter or early spring, before new growth starts, is best for pruning. This gives the plant time to recover and avoids frost damage risk. When cutting back, use clean, sharp tools to prevent disease spread. Start by taking out any dead or sick branches. Then selectively trim to keep the plant balanced and sized right. Don't remove over one-third of foliage at once so as not to stress or hinder healthy regrowth. After pruning, clean up and discard trimmings to prevent disease spread. Proper care like water and fertilizer will also help recovery and thriving. For more on pruning and cutting back this plant, check reliable sources like English Wikipedia or ask a professional horticulturist.

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Planting and Harvest

Australian silky-oak, scientifically known as Grevillea robusta, is a plant that can be potted or planted in the ground. When somebody puts a plant in a container it is significant to decide on one big enough for its root scheme. The container must allow water to exit. Fill the holder with a well-draining potting combination, and softly set the specimen in the centerline, ensuring the crown of the root ball is on the same level as the brim of the holder. Backfill the holder with further potting amalgamation, firming it mildly around the origins. Flush the plant thoroughly following containerization, and situate it somewhere with bright, indirect daylight. When moving Australian silky-oak to a new container, opt for a slightly bigger one and track the same course of action as planting in a pot. This is typically executed every couple of years or when the organism out matures its prevailing receptacle. Improper protection can steer to the deterioration of the organism. It is foremost to evade over saturating, as this may reason root decomposition. Permit the top inch of terrain to dry out before irrigating anew. Nourish the organism with a poised, slow-release fertilizer during the maturation season. Prune any expired or impaired extensions to sustain the specimen's configuration and wellness. In end, Australian silky-oak can be fruitfully planted or settled in the terrain. Accurate containerization, re-containerization, and protection skillsets are fundamental for its prosperity.

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Propagation

Australian silky-oak might be propagated via various methods like putting seeds in soil, pulling plant apart, plant parts, and leaf parts. For putting seeds in soil, get ripe seeds from the greenery and put them in a draining soil combination. Keep the earth damp and situate the container in a sunny spot. Germination commonly takes 2-4 weeks. For pulling plant apart, cautiously isolate the bush into littler segments, guaranteeing each segment has roots appended. Plant the segments in discrete pots with draining soil and water them all the time. To propagate through plant parts, remove 4-6 inch pieces from the greenery, ensuring to take leaves off the lower half. Dip the cut end in rooting substance and plant it in a pot loaded up with a blend of peat greenery and perlite. Keep the earth clammy and spot the pot in a warm splendid area. Leaf parts can likewise be utilized for proliferation. Take a sound leaf and cut it into pieces, guaranteeing each piece has a vein. Plant the leaf segments in a pot loaded up with a draining soil blend and keep the earth sodden. Gathering is not pertinent for proliferation techniques referenced previously.

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Pests and Diseases

Australian silky-oak (Grevillea robusta) is susceptible to various pests and diseases. Silky oak sapling ravaging sawfly (Perga affinis),which feeds on emblazon, cause bare and stunted growth. Silky oak psyllid bug (Heteropsylla spinulosa), induce deformed and discolored leaf. Control pests by using bug killers, ladybird beetle and lacewing. Rot root caused by Phytophthora cinnamomi fungus infect roots, leading to withering, yellowed leaf, eventual demise. Drain well and avoid overwatering to prevent rot root. Infected plants can be treated with fungicides. Powdery mildew by the fungus Erysiphe spp appears as white powdery coating on leaf, stem, flower. Improve air circulation and apply fungicides to control it. Withering can be caused by drought or excessive heat. Water properly and provide shade in summer to prevent withering. Monitor regularly for pests and diseases, take appropriate measures to ensure health and vitality.

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Habitat of Australian silky-oak (Grevillea robusta)

Habitat

Toxicity of Australian silky-oak (Grevillea robusta)

Health Benefits

edible
Inedible
Toxic
No toxicity

NO DATA

Toxic for dogs and cats

NO DATA

Q&A of Australian silky-oak (Grevillea robusta)

  • Is there a recommended way to choose Australian silky-oak?

  • What Are the Qualities of Australian Silky Oak Timber?