I love the look of mixing floral patterns with stripes. I feel like it lessens the girlie factor of the florals by pairing it with stripes, for an overall textured and interesting look. Here are some examples...
I love this cardigan. Worn over a pretty floral dress, and you have layers of fun.
A fuller skirt with a striped pattern, paired with a florally top makes for a pretty outfit.
I love wearing summery dresses into fall, which means layering them over a longer sleeved shirt for added warmth and even adding tights and boots. I think this duo is cute.
A simple floral skirt, with a simple striped t-shirt makes for an interesting outfit.