For forming a “wheatsheaf” bunch of flowers, a bundle of stems is twisted. For that purpose, use is made of a first and second rotatable receiving unit which keep flowers or groups of flowers separated from each other transversely to the axial direction relative to a rotation axis of the receiving unit. A multiplicity of stems are introduced in lying orientation in axial direction relative to the rotation axis into the receiving units, with a part of each bouquet component extending over a distance between the first and second rotatable receiving unit. The first receiving unit is rotated between the feeding of different bouquet components, while the second receiving unit rotates substantially along with the first receiving unit. Thereupon, a relative rotation angle between the first and second receiving unit is changed to twist the bundle of stems. After changing of the relative rotation angle, the bundle in the twisted condition is gripped and/or bound and taken out of the receiving units.
