Floral care instructions can vary depending on the type of flower, but here are some general guidelines:

1. Keep the water clean and fresh: Change the water in the vase every two days, and make sure to clean the vase thoroughly before refilling it. Use lukewarm water and add floral preservative, which can be purchased from a florist or garden center.
2. Cut stems at an angle: Use sharp scissors or pruning shears to cut the stems of the flowers at an angle, which allows for better water absorption. Cut the stems every few days to prevent blockage.
3. Remove leaves: Remove any leaves that will be below the waterline, as they can decompose and contaminate the water.
4. Keep flowers away from heat and sunlight: Place the vase in a cool spot away from direct sunlight, heat sources, and drafts.

Here are some specific care instructions for popular flower types:

• Roses: Remove thorns and leaves, and cut the stems at an angle. Keep the water level high, as roses are heavy drinkers.
• Lilies: Remove the stamens (the pollen-bearing part of the flower), as the pollen can stain clothing and furniture. Cut the stems at an angle and change the water every other day.
• Tulips: Cut the stems at an angle and wrap the flowers tightly in paper or plastic wrap for a few hours to help them stand up straight.
• Carnations: Cut the stems at an angle and remove any leaves that will be below the waterline. Change the water every two days.
• Daisies: Cut the stems at an angle and remove any leaves that will be below the waterline. Daisies prefer cool temperatures and can benefit from being stored in the fridge overnight.
• Hydrangeas

These are just a few examples, but it's important to research specific care instructions for each type of flower to ensure they last as long as possible.

Hydrangeas are beautiful and delicate flowers that require specific care to last as long as possible. Here are some care instructions for hydrangeas:

1. Cut stems at an angle: Use sharp scissors or pruning shears to cut the stems of the hydrangeas at an angle, which allows for better water absorption.
2. Submerge in water: Submerge the entire stem and bloom in cool water for at least 30 minutes or up to a few hours before arranging. This will help hydrate the flowers and keep them looking fresh.
3. Keep the water clean and fresh: Change the water in the vase every two days, and make sure to clean the vase thoroughly before refilling it. Use lukewarm water and add floral preservative, which can be purchased from a florist or garden center.
4. Mist with water: Hydrangeas love moisture, so lightly mist the blooms with a spray bottle filled with water. Avoid getting water on the petals or blooms, as this can cause spotting or discoloration.
5. Keep flowers away from heat and sunlight: Place the vase in a cool spot away from direct sunlight, heat sources, and drafts.
6. Revive wilted blooms: If the hydrangea blooms start to wilt, submerge the entire bloom in cool water for an hour or two. This can help revive the flowers and extend their lifespan.

With proper care and attention, hydrangeas can last for up to two weeks in a vase.