Years come to cultivation in the same place and should not come before or after cabbage types.
Exceptionally sandy soils and heavy loamy soils are not suitable. Tuber fennel does not require any fresh organic fertilization and therefore belongs in the 2nd crop. With regard to mineral fertilization, the need is medium. Potassium and phosphoric acid are added shortly before sowing or. planting, a nitrogen starter fertilization (5Flowers appear on the side shoots in August) immediately after the ascent. given after planting.