Grevillea Robusta 'Silver Oak' Seeds
Grevillea Robusta 'Silver Oak' Seeds
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Grevillea Robusta, also known as Silver Oak or Silky Oak, is a sun-loving evergreen tree that thrives when placed in bright, direct sunlight, so pick a sunny spot indoors to help it grow tall and strong. With its silvery, fern-like leaves the Silver Oak adds an elegant touch to any home.
Instructions:
We recommend using the following to sow the seeds:
Grevillea Robusta, aka Silver Oak or Silky Oak is an evergreen tree native to Australia that prefers lots of light, so make sure to place this plant in a spot with lots of direct sun when growing indoors!
To plant the seeds, pre-soak in warm water for 12-24 hours, sow in a well-draining medium, cover with a humidity dome and keep >70F(use a heat mat if necessary). The seeds can germinate very quickly given good conditions, otherwise they can take up to 60 days to germinate.
(Find more info on germinating seeds by going to our seed guide)
These seeds are for the 2026 growing season.
About the seeds:
|
difficulty |
beginner | intermediate | advanced |
|
germination time |
14-60 days |
|
depth |
1/4" |
|
spacing |
1-3 seeds per nursery pot or soil pod |
|
recommended planter |
2“-4" nursery pot(no terra cotta for germination) |
|
time to maturity |
1 year+ |
|
seed prep |
pre-soak | scarification | stratification | none |
|
method |
greenhouse | paper towel method |
|
temperature |
70F - 85F |
About the Plants:
|
description |
evergreen tall tree with green fern-like foliage and silvery undersides |
|
difficulty |
beginner | intermediate | advanced |
|
growth speed |
slow | medium | fast |
|
size of plant |
up to 100' if grown outdoors |
|
light |
full sun | partial sun | shade | grow lights |
|
soil |
well-draining sandy coconut coir/peat-based potting mix |
|
temperature |
warm | cool |
|
pet-friendly |
cats | dogs | no |
|
pests |
scale, fungus, root rot |
|
fertilization |
heavy | moderate | light |
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