Banksia serrata

old man banksia

Shrubby gnarled tree develops characteristic 'old man' bark with age. Cream yellow flowers fade to brown, then produce furry cones. Prune to shape after summer blooms. Provide good drainage and low fertilizer with no phosphorus.

Altura	12–35 pies
Ancho	6–12
Tolera	Costa, Sequía, Venados, Sal, Viento
Riego	Bajo – Moderado
Banksia are from mediterranean climates of Australia and adapt well to California, particularly along the coast. They appreciate good drainage, but are somewhat adaptable to heavier soil as long as watering is infrequent (once established) and they are in a sunny spot. Once established they will grow and look their best with deep watering every other week to once a month during summer. If they have sharp drainage they will tolerate even more water.
Resiste hasta	22 °F
Exposición	Sombra parcial – Pleno sol
Características	Con flores, Barrera visual, Arbusto, Árbol
Interior / exterior	Exterior
Drenaje	En el suelo: mezcla para cactus, En maceta: mezcla para cactus, Tolera suelo arenoso
Fertilización	Harina de sangre, Emulsión de pescado, Necesita poco, Sin fósforo
Origen	Sureste de Australia
Nativa de California	No
Zonas Sunset	14–17, 21–24

Notas de cultivo

This banksia has a thick bushy form when young, becoming gnarly and treelike with time, though it can be kept smaller by pruning. Don't prune more than two years of growth or you risk the plant not budding back. You can also prune off lower branches to force a more treelike form, this is best started early.

Banksia prefer mildly acidic soil, and if your PH is on the high side you can add cottonseed meal or chelated iron to lower it. Generally the best rule is to not fertilize them unless they aren't growing or are turning yellow. In this case you can try nitrogen fertilizer in the form of fish emulsion or blood meal, but never give them any significant phosphorus and avoid potassium.

While this plant grows unto forty five feet tall in nature, thirty five feet is the tallest we have ever seen them growing in California.

Interés especial

Occurs naturally on the east coast of Australia from southern Queensland to Victoria. Also grows in northern Tasmania.

Excellent cut flowers and foliage.

Esta información refleja las observaciones de Grubb and Nadler y de nuestra comunidad de amantes de las plantas. Siempre tomamos en cuenta las aportaciones de otros horticultores y agradecemos los comentarios de quienes tengan más información sobre el cultivo de esta planta.

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