Sheffield's Seed Company

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Growing Info

Scarification: Soak in hot tap water, let stand in water for 24 hours or roughen or scrape the hard seed coat prior to sowing

Stratification: none required

Germination: sow seed 3/8" deep, tamp the soil, mulch the seed bed

Other: If hot water does not allow the seed to imbibe, nick the seed carefully and soak again in warm water.|germinates best with diurnally fluctuating temperatures between 70 and 50 degrees F.

Native to: New South Wales, Queensland

Introduced to: Argentina Northeast, Assam, Bangladesh, California, Cameroon, Canary Is., Cape Verde, Comoros, Costa Rica, Cuba, Easter Is., Ecuador, El Salvador, Eritrea, Ethiopia, Florida, Gambia, Guatemala, Gulf of Guinea Is., Hawaii, India, Italy, Jawa, Kenya, Lesser Sunda Is., Marianas, Marshall Is., Mauritius, Mexico Southwest, Mozambique, New Zealand North, Norfolk Is., Pakistan, Réunion, Rwanda, Society Is., Solomon Is., St.Helena, Tanzania, Trinidad-Tobago, Venezuela, Venezuelan Antilles, Vietnam, Zaïre, Zambia

Native

Introduced

Grevillea robustaGrevillea robusta

Silk Oak, Silky Oak

In Stock: 0.346 lb (Total:0.346lb)

Grevillea robusta

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0.35 lb

Details

Germination:

91%

Germination test:

Cut (Full Seed)

Purity:

98%

Seeds per lb:

32,956

Quantity:

0.35 lb

Collected in:

India

Crop year:

2023

Min. hardiness zone:

Item ID:

1832648

Characteristics

Growing Info

Scarification: Soak in hot tap water, let stand in water for 24 hours or roughen or scrape the hard seed coat prior to sowing

Stratification: none required

Germination: sow seed 3/8" deep, tamp the soil, mulch the seed bed

Other: If hot water does not allow the seed to imbibe, nick the seed carefully and soak again in warm water.|germinates best with diurnally fluctuating temperatures between 70 and 50 degrees F.

Native to: New South Wales, Queensland

Native

Introduced

Discover the majestic Grevillea robusta, commonly known as Silk-Oak or Silky Oak, a versatile and fast-growing tree species celebrated for its stunning beauty and adaptability. Native to the coastal regions of eastern Australia, this member of the Protea family thrives in warm-temperate to subtropical climates. Renowned for its fern-like foliage, Silk-Oak can reach impressive heights of up to 40 feet or more, creating a striking vertical silhouette. Its dense canopy, adorned with thick green leaves that reveal a silvery underside, adds a unique visual appeal to landscapes.

This tree boasts vibrant golden-orange, bottlebrush-type flowers atop its branches, blooming abundantly after 8 to 10 years, followed by pod-like fruits producing winged seeds. While it's a pioneer species capable of thriving in diverse soils, including sandy and slightly acidic ones, it prefers well-drained conditions to prevent waterlogging. Notably resilient to drought, Silk-Oak thrives in full sun, showcasing its drought-resistant attributes while benefitting from deep irrigation during hot summers.

Silk-Oak's versatility extends to various applications. It's ideal as a shade tree, windbreak, or ornamental feature, making it a valuable addition to urban landscapes, roadways, or parking lots. Additionally, its wood, once used for high-quality furniture, is known for its decorative grain and ease of workability. Although classified as frost-tender, the tree can withstand temperatures down to 24°F, and while its branches might be somewhat brittle in high winds, its overall disease resistance is commendable.

Experience the enduring charm of the Silk-Oak, a tree that combines aesthetic elegance with functional versatility, making it a cherished choice for landscapers and tree enthusiasts alike.