Array Mod , alternating orientations of the mesh around empty

hello,

i am trying to build a flower with the help of the array modifier.
therefore i created some petals with the help of a screw mod.
afterwards i converted the spline to a mesh.
now i want the petals to orientate around a center.
i created an plain axis empty and used a array mod.
however i get very strange orientations of the petals.
one pointing in x another in z direction and at with the correlating wrong axis offset.

What am i doing wrong.?

somehow it seems as if they are buildig up in a screw constellation although i already applied the screw modifier.