Cultivation The plants are raised from seed, sown either in a hot bed or in the open garden according to the season of the year, and, after one or two thinnings and transplantings, they are, on attaining a height of , planted out in deep trenches for convenience of blanching, which is effected by earthing up to exclude light from the stems. Development of self-blanching varieties of celery, which do not need to be earthed up, dominate both the commercial and amateur market.
Cultivation The plants are raised from seed sown either in a hot bed or in the open garden according to the season of the year and after one or two thinnings and transplantings they are on attaining a height of  planted out in deep trenches for convenience of blanching which is effected by earthing up to exclude light from the stems Development of self-blanching varieties of celery which do not need to be earthed up dominate both the commercial and amateur market