Grevillea Robusta 'Silver Oak' Seeds
- Regular price
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$7.00 - Regular price
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- Sale price
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$7.00
includes:
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Ships in 1-2 business days
30 day returns
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 2024 growing season.
About the seeds:
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difficulty |
beginner | intermediate | advanced |
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germination time |
14-60 days |
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depth |
1/4" |
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spacing |
1-3 seeds per nursery pot or soil pod |
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recommended planter |
2“-4" nursery pot(no terra cotta for germination) |
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time to maturity |
1 year+ |
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seed prep |
pre-soak | scarification | stratification | none |
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method |
greenhouse | paper towel method |
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temperature |
70F - 85F |
About the Plants:
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description |
evergreen tall tree with green fern-like foliage and silvery undersides |
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difficulty |
beginner | intermediate | advanced |
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growth speed |
slow | medium | fast |
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size of plant |
up to 100' if grown outdoors |
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light |
full sun | partial sun | shade | grow lights |
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soil |
well-draining sandy coconut coir/peat-based potting mix |
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temperature |
warm | cool |
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pet-friendly |
cats | dogs | no |
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pests |
scale, fungus, root rot |
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fertilization |
heavy | moderate | light |
when you order with us:
FAQs
how difficult are these seeds to grow?
Houseplant seeds are generally trickier to grow than your more common garden seed varieties- they require a specific setup and more time to sprout. You can find the difficulty for each seed variety specified under the "about the seeds" tab on each product page.
We definitely recommend following the setups outlined in our seed guide here, and you can find further details in our blog!
how long does it take for the seeds to germinate?
Houseplant seeds take longer than most seeds to germinate, the average time for germination is 2-3 weeks. If you're curious about the sprouting time for a specific seed variety, you can find that information in the "about the seeds" tab on each product page.
how do I grow houseplant seeds?
All of our orders come with a basic starter guide for you to follow, but our seed guide here goes in much more detail and also offers alternative seed starter methods.
We also include additional planting tips specific to each seed variety under the "instructions" tab of each product page. If you need extra help, don't hesitate to reach out to us at hello@plantflix.com!
my seeds aren't germinating, what do I do?
Houseplant seeds are tricky, and sometimes certain more difficult varieties can take some practice to finally get them to sprout!
If you're having trouble with the seeds, you're not alone. Luckily there are ways to sometimes salvage seeds by adjusting the setup- this quiz can help diagnose any issues you may have with your setup and make suggestions for how to improve it.
You can also email us at hello@plantflix.com and we can help out! If the seeds still aren't germinating, we'll send out a replacement :)