Larkspur Giant Imperial\’s long stemmed flowers are particularly attractive at the backs of borders or indoors as cut flowers. A hardy annual which flowers in the first year in sun or partial shade, growing to a height of 90cm. Sow 0.5cm deep in the flowering position directly and keep the soil moist. Repeat at regular intervals to provide a succession of flowers. Thin the plants to 30cm apart and provide support as they develop. Sow from late summer to early winter.