Hydrangea macrophylla, commonly known as Bigleaf Hydrangea or French Hydrangea, is a popular ornamental shrub prized for its large, showy blooms. Here are some general care guidelines for Hydrangea macrophylla:

1. Light:

• Plant your Hydrangea macrophylla in a location with morning sun and afternoon shade. Too much direct sunlight can scorch the leaves and affect flower color.

2. Soil:

• Use well-draining, rich soil. Hydrangeas prefer moist, fertile soil with organic matter. A slightly acidic to neutral pH is ideal.

3. Watering:

• Keep the soil consistently moist but not waterlogged. Water deeply, especially during dry periods. Mulching around the base of the plant helps retain moisture.

4. Pruning:

• Prune your Hydrangea macrophylla after it finishes flowering. Remove dead or weak wood and shape the plant as desired. Some varieties bloom on old wood, so be cautious not to prune too late in the season.

5. Flower Color:

• The flower color of Hydrangea macrophylla can be influenced by soil pH. In acidic soil, flowers tend to be blue, while alkaline soil produces pink flowers. You can adjust the soil pH to achieve the desired color.

6. Fertilization:

• Fertilize in spring with a balanced, slow-release fertilizer. Avoid high-phosphorus fertilizers, as they can inhibit flower color changes.

7. Winter Protection:

• In colder climates, provide winter protection by mulching around the base of the plant. This helps insulate the roots from extreme temperatures.

8. Blooming Period:

• Hydrangea macrophylla typically blooms in late spring to early summer. Some varieties may produce additional blooms later in the season.

9. Container Growing:

• Hydrangea macrophylla can be grown in containers. Use a well-draining potting mix and ensure the container has drainage holes. Container plants may require more frequent watering.

10. Pests and Diseases: - Keep an eye out for common pests such as aphids or spider mites. Additionally, watch for signs of fungal diseases, especially in humid conditions. Provide good air circulation around the plant.

Remember that specific care requirements may vary depending on the particular variety of Hydrangea macrophylla you have. Always refer to any care instructions provided by the nursery or seller for your specific plant.