Water thoroughly when the top inch of soil feels dry.
Use room-temperature water to avoid shocking the roots.
Make sure excess water drains out of the pot completely.
Empty saucers or trays after watering to prevent standing water.
During their blooming season (spring and summer), hydrangeas need more frequent watering. In fall and winter, reduce watering as the plant enters a resting phase.
Feeding and Fertilizing
To keep your indoor hydrangea healthy and blooming, feed it with a balanced, water-soluble fertilizer every two to four weeks during the growing season.
Use a fertilizer formulated for flowering plants or one with slightly more phosphorus (the middle number in N-P-K ratios), which helps promote blooms.
Stop fertilizing in late fall when the plant naturally slows its growth. Resume feeding in early spring when new growth appears.
Pruning and Maintenance
Pruning helps maintain the shape of your hydrangea and encourages new blooms. Most hydrangeas bloom on old wood, so avoid heavy pruning in late fall or winter.
Instead:
Remove spent flowers after blooming (deadheading).
Trim back any leggy or unhealthy growth in early spring.
Remove any yellow or dried leaves to keep the plant looking fresh.
If your plant becomes too large for its container, you can repot it in a slightly bigger pot with fresh soil or take cuttings to start new plants.
Encouraging Re-Blooming
To help your hydrangea bloom again indoors:
Provide adequate light and humidity.
Feed regularly during the growing season.
Allow the plant a brief dormant period in winter—reduce watering, stop fertilizing, and keep it in a cooler room (50°F to 60°F) for a few weeks before bringing it back to warmer conditions.
With proper care, many hydrangeas will bloom again in the following season, bringing new color to your indoor garden.
Final Thoughts
Growing hydrangeas indoors may seem like a challenge at first, but with the right variety, light, and care, these beautiful flowering plants can thrive in pots. Their lush blooms and green foliage can brighten any corner of your home, from windowsills to living rooms.
By following these easy tricks—choosing the right potting mix, maintaining consistent moisture, and giving your plant enough light—you can enjoy vibrant, long-lasting hydrangeas indoors all year round.
