Grevillea olivacea
Olive Grevillea
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Olive Grevillea (Grevillea olivacea) - Description
Grevillea olivacea, commonly known as Olive Grevillea, is a shrub which is endemic to the south-west of Western Australia. It grows up to 4 metres in height and produces red, orange or yellow flowers between June and October (early winter to mid spring ) in its native range. It occurs in coastal areas between Coolimba and Jurien. The species was first formally described by botanist Alex George, his description published in Nuytsia in 1974.
Olive Grevillea (Grevillea olivacea) - Blooming
Too much phosphorus can prevent blooming. Flowers are petalless. Some species, like G. alpina, bloom year round.
Olive Grevillea (Grevillea olivacea) - Growth
Grow in open sunny position. Many are tolerant of drought and frost.
Olive Grevillea (Grevillea olivacea) - Planting
Grow from half hard cuttings for from seed. Seeds will sprout readily if planted in moist, warm area. Be aware that some types grafted onto more vigorous species.
Olive Grevillea (Grevillea olivacea) - Pest
Scale insects and mealybugs. Occasionally susceptible to root rot and dieback.
Olive Grevillea (Grevillea olivacea) - Interesting facts
Grevillea flowers were once mixed in water and drank as a sweet beverage by Australia aborigines. Plant parts may irritate the skin upon contact.
Olive Grevillea (Grevillea olivacea) - Soil and irrigation
Provide good drainage as too much watering negatively effects these plants. Use low phosphorus soil.
