Stripes and Florals in the Same Room
The easiest companion for a floral is often a stripe with a different scale and a quieter job.

A floral brings irregular shapes and movement to a room. A stripe brings repetition. That difference is what makes them useful together, but it does not guarantee that any two examples will get along. Two bold fabrics can compete even when their colors match perfectly.
Start with the one you would be most reluctant to remove. If that is a floral chair, let the stripe support it. A narrow, low-contrast stripe on a nearby cushion may be enough. If broad striped curtains are the main feature, choose a floral with some open background rather than a dense pattern that covers every inch.
Spread the samples apart on the furniture before deciding. Fabrics stacked on a shopping counter show an intense relationship that may never happen in the room. A chair and curtains separated by a plain wall have more room to be different than two cushions sitting shoulder to shoulder.
The shared color can be small. A charcoal stem in the floral might relate to a charcoal stripe without requiring the flowers themselves to match anything. This often feels less coordinated than selecting two fabrics sold as companions. A similar cream or off-white background can also connect the prints while keeping their colors independent.
Let plain fabric do its part
Do not overlook the largest plain area. A solid sofa, a simple rug, or unpatterned bedding allows the stripe and floral to remain readable. Without that pause, adding a third print can turn a promising combination into a room where everything feels equally active.
Consider orientation only after scale and color. Vertical stripes on curtains and a scattered floral on a chair naturally perform different roles. On a cushion, the same stripe may feel more assertive because its edges create a small, concentrated block. Try the actual object where it will live rather than applying a universal rule about which direction is best.
If the result seems overly sweet, a straightforward wooden table or a plain dark frame can introduce a firmer line. If it seems too formal, the answer may be fewer pillows and a more relaxed arrangement, not another pattern. The stripe and floral do not need to appear in equal quantities. One can remain the supporting voice throughout the room.