Think about the specific farmhouse style you want to achieve. Farmhouse decor can vary from classic white and neutrals to more colorful and rustic variations. Decide on the overall mood and style you'd like to create.
Determine whether you want to go with lighter or darker curtains. Lighter curtains, such as whites or soft pastels, can create an airy and open feel, while darker colors like charcoal or deep blues can add warmth and coziness.