Silkoak, Silky Oak Grevillea robusta

Detailed Listing For
Botanical Name:

Grevillea robusta

Family:

Proteaceae

Genus:

Grevillea

Species:

robusta

Common Name:

Silkoak, Silky Oak

Seeds Per Pound:
34,135
Quantity:
1.86 lb
Average Viable Seeds/Packet:
33
Germination:
91%
Germination Test Type:
cut
Purity:
99%
Height:
60-90 feet
Collection Locale:
India
Crop Year:
2020
Minimum Hardiness Zone:
9
In Stock: 1.86 lb
Prices
  • Grevillea robusta

Items are priced on a curve, you can buy any 'bulk quantity' up to what we have in stock, some examples are:
1 packet
$4.95
10 g
$13.50
1 oz
$19.95
1 lb
$154.50
Growing Info, follow in order:
Scarification: Soak in hot tap water, let stand in water for 2 days.
Stratification: none required.
Germination: sow seed 3/8" deep, tamp the soil, mulch the seed bed.
Other: germinates best with diurnally fluctuating temperatures between 70 and 50 degrees F. If hot water does not allow the seed to imbibe, nick the seed carefully and soak again in warm water.
In a Nutshell:
* Grevillea robusta , commonly known as the southern silky oak or Silky-oak , or Australian Silver-oak , is the largest species in the genus Grevillea . It is a native of eastern coastal Australia , in riverine, subtropical and dry rainforest environments receiving more than 1,000 mm per year of average rainfall. It is a fast growing evergreen tree, between 18-35 m tall with dark green delicately dented bipinnatifid leaves reminiscent of a fern frond. more...
* The flowers are one of the richest sources of nectar. This can be sucked directly from the flowers, shaken into a bowl or washed out in a small quantity of water. The nectar falls in showers when the flowers are shaken.
* A very ornamental plant, it is often grown as a street tree in suitable climates. more...