Bigleaf hydrangea (Hydrangea macrophylla)
Care, watering, light and tips for Bigleaf hydrangea on Floravia.
Quick facts
- Family: Hydrangeaceae
- Difficulty: Moderate care
- Watering: every 3 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Bigleaf hydrangea
Hydrangea macrophylla, commonly known as bigleaf hydrangea, is a deciduous shrub famed for its large, showy flower clusters. Its blooms, which can be blue, pink, purple, or white, create a spectacular visual impact in shaded gardens, along pathways, or as potted plants. It's ideal for adding a touch of color and volume to outdoor spaces.
Native range
Japan
Care tips
It prefers partial shade locations, especially protection from intense afternoon sun, as it can scorch its leaves and flowers. The soil should be rich in organic matter, well-drained, and consistently moist; avoid waterlogging, but do not let it dry out completely. Soil pH influences flower color: an acidic pH (with aluminum) produces blue flowers, while an alkaline one favors pink. A common mistake is pruning too late in the season, as they bloom on old wood; pruning should be done after flowering to avoid compromising the following year's blooms.
How to save a dying Bigleaf hydrangea
- Warning signs
- Drooping, wilted leaves (like a rag), even if soil is moist. Yellow leaves with brown edges.
- First aid
- Move to partial shade. Water deeply if soil is dry. If potted, check drainage.
- What kills it
- Strong direct sun, lack of water in summer, or alkaline soil. Constant waterlogging.
- Can it be saved?
- Yes! They are very resilient. Act fast when wilting appears; correct watering and sun exposure.