Can someone please help me? Whenever I do a Wilton type rose out of buttercream, the petals have a feathered effect? Once in a while the icing comes out smooth, but more times than not it doesn't. I am very frustrated.

Make sure your icing isn't too thick. Try thinning it with a little corn syrup. That helps the petal edges be smoother.

CakeMommy3 is correct that your frosting is to thick. Thin it out and you won't have that problem any more.

Yup, frosting is too thick.....but I kinda like the feathered look on roses. nature isn't perfect, so it gives a more 'natural' effect. IMO of course....

I had the same problem. My Wilton instructor told me to thin the icing a little and to add piping gel to it. HTH

Thank you all for the suggestions. I will try them again this weekend!

Could also be that your icing is "airy". Air bubbles can cause the same issue. I try to make my icing the day before, refridgerate overnite, then take out, let warm on counter, remix. This seems to help.

Also, don't mix buttercream fast, mix slow and just let it go longer in mixer, you don't want to add any air.