25 cm apart. Planting out can take place from the end of November to the end of January with at a spacing of 6 to 8 plants per metre of row. A number of named varieties exist, most bred for leaf production e.g. 'Improved Full Heart', 'Thick Leaf', 'Improved Giant', and some for roots e.g. 'Giant Forcing'. For leaf production, American growers raise plants in rows 15 cm apart. No information is available on the fertiliser needs of dandelion.
Weed control is important as weeds provide competition to the establishing dandelion plants.
Techniques such as pre-sow spraying or sowing into a stale seed bed should be undertaken. Once established, dandelions are usually able to cover the beds quickly and this prevents most weeds from invading. Dandelions are resistant to many herbicides and this is an advantage when keeping aisles weed free and reducing weed competition within beds. No herbicides are registered for use on dandelion and only limited research has been carried out. All treatments controlled weeds adequately.