pelargonium 'Royal Oak'

Under glass grow in a loam-less or loam-based potting compost in full light with shade from hot sun with good ventilation. When in growth water moderately and apply a balanced liquid fertiliser in spring and early summer. A high potash fertiliser should be used when in flower. Water sparingly in winter. Can be grown outside in frost-free areas in a fertile soil. See Pelargonium cultivation for further advice.

Deadhead regularly

Propagate by softwood cuttings in spring, late summer or early autumn

Susceptible to vine weevil, caterpillars and thrips

May be subject to grey moulds when grown under glass