How to Care for Spiraea thunbergii (Thunberg Spirea)

Korean name: 설유화

A deciduous shrub that blooms delicate white flowers in spring. Its slender, slightly curved branches grow to about 1–2 meters. It has unique flowers distinguishing it from related species, making it suitable as a garden plant.

Key facts

• Category: Garden tree & shrub
• Difficulty: Moderate
• Where to keep: outdoors
• Native to: Japan, Eastern China
• Growth rate: Moderate
• Pets: No known toxicity, so it is fine to keep around pets.
• Traits: garden plant, spring bloom, deciduous shrub, cold hardy
• Also known as: Thunberg Spirea, Thunberg's Spiraea

Care Guide

• Light: Grow in a bright location with plenty of sunlight.
• Watering: Water thoroughly when the soil dries out.
• Soil: Prefer well-drained, fertile soil.
• Humidity: Maintain moderate humidity.
• Temperature: -10 to 25°C
• Fertilizer: Use slow-release fertilizer during the growing season.

Common questions

How often should you water Spiraea thunbergii?

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

Where should you keep Spiraea thunbergii?

It likes Grow in a bright location with plenty of sunlight.. You can grow it outdoors. Use Prefer well-drained, fertile soil..

Is Spiraea thunbergii safe around pets?

No known toxicity, so it is fine to keep around pets.

Is Spiraea thunbergii good for beginners?

Difficulty: Moderate. Keep it around -10 to 25°C. Humidity: Maintain moderate humidity.. Fertilise Use slow-release fertilizer during the growing season..