To care for your bouquet of mixed flowers, including lilies, chrysanthemums, baby roses, roses fillers, and seasonal flowers, follow these guidelines:

1. **Watering**: Trim the stems at an angle before placing them in a clean vase filled with room temperature water. Change the water every two days to prevent bacterial growth and ensure freshness.

2. **Placement**: Display the bouquet in a cool location away from direct sunlight and heat sources. Avoid placing it near drafts or heaters, as extreme temperatures can cause the flowers to wilt prematurely.

3. **Trimming**: Trim the stems of the flowers every few days to maintain water absorption. Remove any foliage that will be submerged in water to prevent bacterial growth.

4. **Ethylene Exposure**: Keep the bouquet away from ethylene-producing fruits and vegetables, as they can accelerate the aging process of the flowers.

5. **Misting**: Lightly mist the flowers with water to keep them hydrated, especially in dry environments. This helps prolong the freshness of the blooms and prevents them from drying out.

6. **Enjoyment**: Remove any wilted or spent flowers promptly to encourage the remaining blooms to last longer. Take time to appreciate the beauty of your bouquet.

By following these care tips, you can ensure that your bouquet of mixed flowers remains vibrant and beautiful for an extended period.