How to Care for Hydrangea serrata (Mountain Hydrangea)

Korean name: 산수국

Mountain hydrangea is a deciduous shrub native to mountainous regions, characterized by small leaves and delicate flowers. Its flowers are smaller than common hydrangeas and can vary in color from white to blue. It grows well in cool environments and prefers well-drained soil.

Key facts

• Category: Flowering plant
• Family: Hydrangeaceae
• Difficulty: Moderate
• Where to keep: outdoors
• Native to: Native to mountainous areas of Korea, Japan, and China
• Growth rate: Moderate
• Pets: Toxic, so keep it well away from pets and children.
• Flower meaning: fickleness, calmness
• Traits: cold hardy, shade tolerant, deciduous, ornamental
• Also known as: Mountain Hydrangea, Tea of Heaven

Care Guide

• Light: Prefers partial shade or bright shade.
• Watering: Water thoroughly when the soil feels dry.
• Soil: Well-drained, organic-rich soil is ideal.
• Humidity: Thrives in moderate humidity.
• Temperature: 15~25°C
• Fertilizer: Apply balanced slow-release fertilizer moderately in spring and summer.

Common questions

How often should you water Hydrangea serrata?

Water thoroughly when the soil feels dry. Roughly every 7 days is the baseline; adjust for the season and the spot it sits in.

Where should you keep Hydrangea serrata?

It likes Prefers partial shade or bright shade.. You can grow it outdoors. Use Well-drained, organic-rich soil is ideal..

Is Hydrangea serrata safe around pets?

Toxic, so keep it well away from pets and children.

Is Hydrangea serrata good for beginners?

Difficulty: Moderate. Keep it around 15~25°C. Humidity: Thrives in moderate humidity.. Fertilise Apply balanced slow-release fertilizer moderately in spring and summer..