Grevillea robusta
分類
家族Proteaceae
属Grevillea
ゾーン9
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Grevillea robusta, commonly known as the Silk Oak, is a fast-growing evergreen tree native to eastern coastal Australia. It belongs to the family Proteaceae and the genus Grevillea. This tree is known for its fern-like leaves and bright yellow-orange flowers. It thrives in subtropical climates and can grow up to 30 meters tall. It is often used as an ornamental tree in gardens and parks.
としても知られている
Australian Silky-Oak
Silkoak
Silky Oak
Stylurus Robustus
Grevillea robusta var. forsteri
Grevillea umbratica
Grevillea venusta
概要
詳細
お手入れ方法
Grevillea robusta requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and high humidity. Water the plant when the soil is almost completely dry, but avoid waterlogging. This tree is relatively easy to care for but requires regular pruning to maintain its shape and health.土壌
The Silk Oak prefers well-draining loamy soil. It can tolerate a range of soil types but thrives best in slightly acidic to neutral pH levels. Ensure the soil has good drainage to prevent root rot.肥料
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season, typically in spring and summer, to promote healthy growth.植え替え
Repot young trees every 2-3 years to accommodate their growing root system. Choose a pot that is slightly larger than the current one and ensure it has good drainage. Repotting is best done in the spring.伝搬
Grevillea robusta can be propagated from seeds or cuttings. Seeds should be sown in a well-draining seed mix and kept moist until germination. Cuttings should be taken from semi-hardwood growth and rooted in a suitable medium.剪定
Prune the tree regularly to remove dead or damaged branches and to maintain its shape. Pruning is best done in late winter or early spring before new growth begins.毒性
Grevillea robusta is toxic to pets and humans. The leaves and flowers contain compounds that can cause skin irritation and allergic reactions. Ingestion can lead to more severe symptoms, so it is important to handle the plant with care.追加
Grevillea robusta is also known for its timber, which is used in furniture making and cabinetry. The tree attracts birds and insects with its vibrant flowers, making it a valuable addition to wildlife gardens.植物の手入れに革命を起こす
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