Sunflower Bank is a Colorado-based community bank offering a wide range of personal banking, small business and commercial banking, wealth management services, credit cards, and home mortgage loans. Sunflower Bank is a Colorado-based community bank that offers a wide range of personal banking, small business and commercial services, wealth management services, credit cards, home mortgage loans, and more. We strive to elevate the community banking experience by offering all the tools, technology, products and features you need -- along with the personal attention you deserve.