 Banksia verticillata is seldom seen in cultivation . The natural growing conditions point to a sunny aspect and good drainage as being important in cultivation . It is good for coastal situations and erosion control . Very sensitive to dieback , B. verticillata ( like most other western Australian banksias ) perishes quickly in humid conditions or poor drainage . It has been grafted successfully onto Banksia integrifolia . Seeds do not require any treatment , and take 19 to 49 days to germinate . 
