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Hydrangea serrata (Mountain Hydrangea)

Tea of Heaven

Hydrangea serrata (Mountain Hydrangea) is a refined deciduous shrub prized for its delicate lacecap flowers and compact growth habit. Flowering through summer, it produces soft blue or pink blooms depending on soil conditions, adding elegance to New Zealand gardens. Smaller and more cold tolerant than many mophead types, it is perfect for sheltered borders, woodland gardens, and courtyard spaces. This reliable performer offers subtle beauty and excellent seasonal interest.

Hydrangea serrata pink flower with blue florets, surrounded by lush, green foliage.

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Suited to regions:All regions
Plant type:Shrubs
Height:1.20 m
Spread:1.20 m
Flowering time:Summer, Autumn
Tolerances:Hardy
Garden uses:Containers, Living areas
Garden styles:Alpine, Backyard, City & Courtyard, Frontyard, Japanese, Modern, Rock
Easy to grow?Yes
Maintenance requirementsSome
Growth rateMedium
Also known asTea of Heaven
Sku15995

How to grow Hydrangea serrata (Mountain Hydrangea) in NZ

Hydrangea serrata (Mountain Hydrangea) grows best in a sheltered position with morning sun and afternoon shade. In New Zealand gardens it prefers rich, well drained soil that retains moisture without becoming waterlogged. Incorporate compost at planting time to support healthy root development. Keep the soil consistently moist during spring and summer to encourage strong flowering. Protection from harsh afternoon sun and drying winds will help maintain lush foliage and vibrant blooms.

Hydrangea serrata (Mountain Hydrangea) care tips

Hydrangea serrata (Mountain Hydrangea) benefits from regular watering during dry periods to maintain healthy foliage and consistent flowering. Apply a quality fertiliser for flowering shrubs in early spring to promote strong bud development. Remove spent blooms after flowering to keep the plant tidy. In late winter, lightly prune by removing dead or weak stems while retaining healthy wood that will carry the next season flowers.

Hydrangea serrata (Mountain Hydrangea) size, spacing, and growth rate

Hydrangea serrata (Mountain Hydrangea) typically grows to around 1 to 1.2 metres tall and wide, forming a neat rounded shrub. Space plants approximately 1 metre apart to allow for mature spread and good air circulation. Growth is moderate, establishing steadily in favourable conditions. Its naturally compact habit makes it ideal for smaller gardens and container planting while still delivering an impressive summer floral display.

Landscaping uses for Hydrangea serrata (Mountain Hydrangea)

Hydrangea serrata (Mountain Hydrangea) is ideal for woodland style gardens, shaded borders, and sheltered courtyard plantings. Its lacecap flowers provide a softer look than traditional mophead types and combine beautifully with ferns, hostas, and other shade loving plants. Use it as a feature shrub in smaller spaces or plant in groups for a layered effect. It also performs well in large containers where moisture can be carefully managed.

Why buy Hydrangea serrata (Mountain Hydrangea) from The Plant Company?

When you purchase Hydrangea serrata (Mountain Hydrangea) from The Plant Company, you are choosing NZ’s most trusted plant nursery. Our plants are grown and selected for strength, health, and performance in New Zealand conditions. We provide expert advice to help you position and care for your plant successfully. With secure packaging and reliable nationwide delivery, you can buy with confidence and enjoy premium quality plants for your garden.

Hydrangea serrata tea

Hydrangea serrata is indeed used to make a unique herbal tea, most notably known as "Amacha" in Japan. This tea is made from the dried leaves of Hydrangea serrata which produces a naturally sweet flavour. It's caffeine-free, making it a good alternative to traditional teas. In Japan, Amacha is traditionally used in Buddhist ceremonies, particularly to celebrate Buddha's birthday. While Amacha is made from Hydrangea serrata leaves, it's crucial to understand that not all hydrangeas are safe for consumption.

Questions and Answers

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