Guide to growing Sorrel Rumex
Rumex are hardy perennial herbs that range from 45 to 60cm in height.
They have green arrow shaped leaves that can be used in soups, and come into bloom in the middle of summer.
The common name for Rumex members is Sorrel and if growing for culinary use it is recommended that you search for Rumex acutatus.
How to grow Sorrel
Due to their fecund nature it is best to grow Sorrel in containers to separate them from other members of the herb garden. The Sorrel seeds should be sown at a depth of 6mm in the middle of spring. The container that Sorrel grows in should have a rich acidic soil (pH 5.5 to 6) that is moist, and the container should be placed into a sunny area of the garden. The Sorrel plants should be spaced about 30 to 40cm apart if using a very large container or singularly in smaller containers.
If starting off indoors then sow sorrel seeds about a month before the last frost. They should take about 9 or 10 days to germinate at 18 to 20 degrees centigrade. Transplant them outdoors just after the last frost.
Caring for Sorrel
Easy to look after but difficult to control due to their prolific seed production. In the spring time supply sorrel with a feed and a mulch. It is best to water Sorrel regularly as this prevents the sorrel leaves from having a bitter taste. After 3 years replace the sorrel plant as they tend to lose both vigor and flavor.