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Grevillea robusta is a very ornamental and fast-growing upright tree with fern-like leaves and a silvery underside almost hidden by the masses of golden yellow-orange flowers in late spring. Truly a spectacular tree in flower.
One of the easiest Grevillea's to grow
The main species used as rootstock by commercial growers for grafting.
Prized for its beautiful timber used in furniture making.
Native to eastern Australia.
Prefers medium to heavy soils in an open sunny position, drought resistant but frost tender.
The best time to sow Grevillea seed is autumn or spring; avoid the hottest and coldest months of the year in cool temperate climates.
There are two main methods to assist germination.
Pre-treatment of smoke: Not considered critical for this species but may be beneficial.
Many members of the Proteaceae are responsive to pre-treatment of smoke. Although germination will often occur without smoke treatment it has proved to be beneficial in reducing the number of days to germination and increasing germination rates in many species.
Smoke treatments are simple and can be undertaken either by soaking the seed overnight or by applying it to the surface after sowing, both provide good results. Smoke treatments are available by clicking here.
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