To ensure your arrangement of pink flowers in a white flower box remains fresh and beautiful, follow these care instructions:

1. **Watering**: Check the water level in the flower box daily and ensure that the foam or floral sponge at the base of the arrangement remains moist. Add water as needed to keep the flowers hydrated.

2. **Trimming**: Trim the stems of the flowers every few days to maintain their freshness. Cut them at an angle to allow for better water absorption.

3. **Cleaning**: Remove any wilted or dead flowers and foliage from the arrangement promptly to prevent the growth of bacteria, which can affect the remaining flowers.

4. **Location**: Place the flower box in a cool area away from direct sunlight, heat sources, and drafts. Exposure to excessive heat or cold can cause the flowers to wilt more quickly.

5. **Misting**: Lightly mist the flowers with water using a spray bottle to keep them hydrated, especially if the air in your home is dry.

6. **Avoiding Ethylene**: Keep the arrangement away from fruits, as they release ethylene gas, which can cause the flowers to deteriorate more quickly.

7. **Enjoyment**: Finally, enjoy the beauty of your pink flower arrangement! With proper care, it will continue to brighten up your space for days to come.

By following these care tips, you can prolong the lifespan of your pink flower arrangement in a white flower box and continue to enjoy its beauty.