Shiso is often cultivated in the Orient as a food flavouring. Shiso is also cultivated for the oil obtained from its seed. It is sometimes used in sub-tropical bedding schemes in Britain.
The leaves, stems and seeds of shiso are often used in Oriental medicine.
A drying oil obtained from the seed is used in making paints, varnishes, water proofing etc
Prefers a light soil. Requires a rich well-drained moisture-retentive soil in full sun. Plants require a well-drained soil but do not need particularly fertile soil. Prefers an acid soil with a pH between 5.5 and 6.
The plant is not frost hardy and requires temperatures above 18°c if it is to grow well. The plant requires short days in order to flower.
Surface-sow or only lightly cover the seed in mid spring in a greenhouse. The seed germinates best at 20°c, though it also succeeds at slightly lower temperatures. Germination is usually quick, prick out the seedlings into trays or individual pots when they are large enough to handle and plant them out into their permanent positions in early summer. Give the plants some protection such as a cloche until they are growing away well.
This herb should be avoided by pregnant women.Edible uses