Cycas circinalis,Queen sago, sago palm is a slow growing tree. It requires a strong loam with sharp sand angood drainage. Succeeds in dry soils and is tolerant to salts in the soil. It needs a sunny position. This species is not fully hardy in Britain and requires greenhouse or conservatory protection over the winter, but it can be grown outdoors in the summer. It is becoming rare in the wild. The plants produce special upward growing roots where nitrogen is produced in symbiosis with algae.