Grevillea johnsonii
Spider Flower
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Spider Flower (Grevillea johnsonii) - Description
Grevillea johnsonii (Johnson's Grevillea) is a shrub species which is endemic to New South Wales in Australia. It grows to between 2 and 4. 5 metres high. The leaves are 10 to 25 cm long and have narrow lobes that are 0. 7 to 1. 5 mm wide. Flowers appear between August and November (late winter to late spring) in the species native range.
Spider Flower (Grevillea johnsonii) - Blooming
Too much phosphorus can prevent blooming. Flowers are petalless. Some species, like G. alpina, bloom year round.
Spider Flower (Grevillea johnsonii) - Growth
Grow in open sunny position. Many are tolerant of drought and frost.
Spider Flower (Grevillea johnsonii) - 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.
Spider Flower (Grevillea johnsonii) - Pest
Scale insects and mealybugs. Occasionally susceptible to root rot and dieback.
Spider Flower (Grevillea johnsonii) - 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.
Spider Flower (Grevillea johnsonii) - Soil and irrigation
Provide good drainage as too much watering negatively effects these plants. Use low phosphorus soil.
