Grevillea robusta

$570.00
$570.00
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Description
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Grevillea robusta, commonly known as the Silk Oak or Australian Silver Oak, is a splendid evergreen tree native to Australia. This ornamental tree is renowned for its elegant appearance, featuring feathery, fern-like foliage and striking orange-red flowers that create a visually captivating display. With a mature height of up to 30 meters, Grevillea robusta adds a touch of grandeur to gardens, parks, and landscapes.

Common Name: Silk Oak, Australian Silver Oak
Mature Height (meters): Up to 30 meters
Mature Width (meters): Varies with age but typically 10-15 meters
Spacing: Allow ample space to accommodate its mature width and height.
Foliage: The fern-like, pinnately compound leaves are a distinctive feature, providing a lush and tropical appearance.
Flowering Period: Grevillea robusta produces stunning orange-red flowers in clusters, attracting birds and pollinators.
Form/Habit: Tall and upright with a symmetrical, conical crown.
Uses: Ideal for larger gardens, parks, and open spaces. Often used as a shade tree or as an ornamental specimen due to its impressive foliage and flowers.
Evergreen/Deciduous: Evergreen
Tolerates: Grevillea robusta can tolerate a variety of soil types, including clay and sandy soils. It is also relatively drought-tolerant once established.
Drought Hardy: Yes, moderately drought-tolerant once mature.
Sun: Full sun to partial shade
Maintenance: Low to moderate
Water Requirement: Regular watering during establishment; reduce frequency as it matures.

Planting your Grevillea robusta
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How to Plant Grevillea robusta:

Select an Ideal Location: Choose a location with well-draining soil and sufficient space for this tree's eventual size.

Dig the Planting Hole: Dig a hole that's as deep and twice as wide as the root ball.

Position the Tree: Place the tree in the hole, ensuring the top of the root ball is level with the surrounding soil.

Backfill with Soil: Fill the hole with soil, gently tamping it down to remove air pockets.

Water Thoroughly: Provide a generous watering to help the tree settle in.

Caring For Your Grevillea robusta
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Caring for Your Grevillea robusta:

Watering: During the first few years, maintain consistent soil moisture. Reduce watering frequency as the tree matures.

Pruning: Prune to maintain shape and remove dead or damaged branches. This tree typically requires minimal pruning.

Fertilization: Apply a balanced, slow-release fertilizer in spring to promote healthy growth.

Frequently Asked Questions about Grevillea robusta
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Frequently Asked Questions (FAQs):

Q: Can Grevillea robusta tolerate drought?
A: Yes, once established, Grevillea robusta is moderately drought-tolerant, making it suitable for regions with dry spells.

Q: What type of soil does it prefer?
A: Grevillea robusta can thrive in various soil types, including clay and sandy soils, as long as they are well-draining.

Q: Are the orange-red flowers attractive to wildlife?
A: Yes, the vibrant orange-red flowers of Grevillea robusta are known to attract birds and pollinators, adding to the tree's appeal in the garden.

Description

Grevillea robusta, commonly known as the Silk Oak or Australian Silver Oak, is a splendid evergreen tree native to Australia. This ornamental tree is renowned for its elegant appearance, featuring feathery, fern-like foliage and striking orange-red flowers that create a visually captivating display. With a mature height of up to 30 meters, Grevillea robusta adds a touch of grandeur to gardens, parks, and landscapes.

Common Name: Silk Oak, Australian Silver Oak
Mature Height (meters): Up to 30 meters
Mature Width (meters): Varies with age but typically 10-15 meters
Spacing: Allow ample space to accommodate its mature width and height.
Foliage: The fern-like, pinnately compound leaves are a distinctive feature, providing a lush and tropical appearance.
Flowering Period: Grevillea robusta produces stunning orange-red flowers in clusters, attracting birds and pollinators.
Form/Habit: Tall and upright with a symmetrical, conical crown.
Uses: Ideal for larger gardens, parks, and open spaces. Often used as a shade tree or as an ornamental specimen due to its impressive foliage and flowers.
Evergreen/Deciduous: Evergreen
Tolerates: Grevillea robusta can tolerate a variety of soil types, including clay and sandy soils. It is also relatively drought-tolerant once established.
Drought Hardy: Yes, moderately drought-tolerant once mature.
Sun: Full sun to partial shade
Maintenance: Low to moderate
Water Requirement: Regular watering during establishment; reduce frequency as it matures.

Planting your Grevillea robusta

How to Plant Grevillea robusta:

Select an Ideal Location: Choose a location with well-draining soil and sufficient space for this tree's eventual size.

Dig the Planting Hole: Dig a hole that's as deep and twice as wide as the root ball.

Position the Tree: Place the tree in the hole, ensuring the top of the root ball is level with the surrounding soil.

Backfill with Soil: Fill the hole with soil, gently tamping it down to remove air pockets.

Water Thoroughly: Provide a generous watering to help the tree settle in.

Caring For Your Grevillea robusta

Caring for Your Grevillea robusta:

Watering: During the first few years, maintain consistent soil moisture. Reduce watering frequency as the tree matures.

Pruning: Prune to maintain shape and remove dead or damaged branches. This tree typically requires minimal pruning.

Fertilization: Apply a balanced, slow-release fertilizer in spring to promote healthy growth.

Frequently Asked Questions about Grevillea robusta

Frequently Asked Questions (FAQs):

Q: Can Grevillea robusta tolerate drought?
A: Yes, once established, Grevillea robusta is moderately drought-tolerant, making it suitable for regions with dry spells.

Q: What type of soil does it prefer?
A: Grevillea robusta can thrive in various soil types, including clay and sandy soils, as long as they are well-draining.

Q: Are the orange-red flowers attractive to wildlife?
A: Yes, the vibrant orange-red flowers of Grevillea robusta are known to attract birds and pollinators, adding to the tree's appeal in the garden.

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