I have no trouble growing Grevillea banksii seeds the plants just pop up all over the place too. So do my neighbours Grevillea robusta ( Silky Oak ) them ones I have to pull out as soon as I see them As they grow to 30 mts, if you want any seeds from GB 3 mts red flowers email me as its flowering at present. Sorry I cannot help you about those store bought ones, but as Dee said try cuttings. Cheers...MM

Yes I think that would be a good idea, I have copy and pasted this from another site : It is best to take your cuttings from the hardened new growth that arises between October and April. The plant producing your cutting material should have finished a growth surge, with a clean and healthy appearance and no moulds on the stems. Cut it into 7-10cm lengths, and trim the leaves off the lower half of the cutting, ensuring no bark is torn off the stem. Remove young growing shoots or flowers. Dip the cut end into a rooting hormone powder to stimulate faster, more reliable root growth. Grevilleas prefer a low nutrient propagation mix, like 1:2 parts peat moss and coarse sand. Place the entire pot in a plastic bag and seal. The new cutting will produce roots in about 4 to 8 weeks, and can be potted up once the roots are 3-5cm long. Are you keeping the cuttings cool like wrapping them in damp paper if not potting up straight away as they will dry out quickly, I have potted up hundreds of cuttings and none have died within four days as they usually have enought moisture in them to keep them alive for a while and this is Queensland. And Pete's (Gardening Australia) other rooting compound is vegemite but I have never tried that interesting all the same yes do let us know how you go.......MM.

You need to break through the hard, waterproof outer layer of the seed coat, to allow absorption of water by the embryo. There are several ways: you can nick each seed with a knife, or (easier) rub briefly between sheets of sandpaper; then soak for at least half a day in water (lukewarm to start with), when you should see the seeds swell in size. Then plant. Alternatively you can pour boiling water over the seeds, but it must be sufficiently shallow that it cools in only 5-10 minutes, otherwise you will boil and hence kill the embryo. Some people go further and light a fire of dead leaves over their seeds, but this a bit risky and should not be necessary. If you have enough seeds there is no harm in trying several approaches, to see which one works best. If all else fails, you can experiment with smoke water. Try a Google search on, say, 'smoke' and 'germination' together and you should find heaps of information.

hi there. its not normally recommended to grow grevilleas from seed as they hybridise readily , so you can't always be sure what your going to get ! If you want to grow a particular grevillea then the best way is to do it is by cuttings , that way you will get a plant that is genetically identical to the original. hope this helps votepalantine