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 Weather Station

Products > Banksia speciosa
Banksia speciosa - Showy Banksia

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Habit and Cultural Information
Category: Shrub
Family: Proteaceae (Proteas)
Origin: Australia (Australasia)
Evergreen: Yes
Flower Color: Cream
Bloomtime: Summer/Fall
Height: 12-20 feet
Width: 10-15 feet
Exposure: Full Sun
Seaside: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 20-25 F
Banksia speciosa (Showy Banksia) - A dense, rounded medium-sized tree or large shrub which grows to 12-20 feet tall and has 1 foot long or more olive-green leaves that are deeply serrated and that have a whitish underside with new foliage clothed with brown hairs. Unique erect, 1 foot tall cone-like flowers, popular with florists because of the creamy-yellow color, rise above the foliage in summer and fall. Plant in full sun and irrigate only occasionally to very little. Hardy to 20-25 degrees F. This plant can be susceptible to root rot so it is always best planted in well-drained soils and water withheld in summer months. Tolerates near coastal conditions but needs some protection from direct salt spray and wind exposure. Showy Banksia comes the southern area of Western Australia, growing within 30 miles of the coast along the Southern Ocean, often in old dune formations in deep sandy soils. The name for the genus is one given by Carolus Linnaeus to honor the English botanist Sir Joseph Banks, who was on Captain James Cook's first expedition to Australia and collected the first Banksia specimens in 1770. The specific epithet is from the Latin word 'speciosus' meaning "showy" in reference to the showy flowers of this species. Another common name is Ricrac Banksia in reference to the zig sagging serrations of the leaf.  The information on this page is based on the research that we have conducted about this plant in the San Marcos Growers library, from what we have found on reliable online sources, as well as from observations made of our crops of this plant growing in the nursery and of plants growing in the nursery's garden and those in other gardens where we may have observed it. We also have incorporated comments received from others and welcome getting feedback from those who may have additional information, particularly if this information includes cultural information that would aid others in growing Banksia speciosa.