Propagation
Fresh seed should be sown in a well-drained media and keep moist but not wet. Maintain a temperature of 18º to 21º C. (64º to 75º F) in an unheated glasshouse or open frame. Germination occurs within 3-weeks to 3-months depending on the species, then prick-out and pot up. 

Careful not to over water seedlings as they are prone to damping off and larger plants are difficult to transplant. When removing seed from Banksia fruits it may be necessary to place the fruit in an oven for 60 minutes at a temperature of 120° C. to simulating the effect of a bushfire to opening the valves.  

General pruning information.
When pruning reduce only the new growth as cutting old wood is likely to cause dieback. Limbs may be removed back to the collar.

Botanic information
Leaf: The oblanceolate to oblong leaves are up to 20mm (¾in) wide with coarsely serrated margins. The leathery textured upper surface is glabrous and the underside is covered in tomentose.

Flower: The small bright yellow tubulate flowers are arranged in a terminal cylindrical spike that is up to 200mm (8in) long and 90mm (3½in) wide. They appear during autumn and the spent flowers persist on the plant.

Fruit: The follicle opens in two woody obtuse valves that are arranged transversely on the rhachis and consolidates to form a thick woody cone. The obovate black seed are winged and are up to 45mm (1¾in) long.

Cultivation
Generally, Banksia species prefer a well drained, sandy soil that is tending acidic but many species from Western Australia grow on acidic top soils with alkaline subsoil. 

When the growing Western Australian species outside their native habitat technique of building a garden bed, of acidic soil above a layer of agricultural lime commonly produces better results particularly in raised garden beds or on slopes. During establishment, keep the soil moist but not wet and do not use fertiliser that contains phosphorus.