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Hydrangea Merritt's Supreme

Hydrangea 'Merritt's Supreme' is a compact mophead variety prized for its richly coloured blooms that range from deep pink to vivid blue depending on soil pH. Its strong stems hold the large flower heads upright, making it an excellent choice for borders, containers, or small garden spaces. Blooming from early to late summer, it thrives in part-shade with moist, well-drained soil and performs reliably across New Zealand gardens. ‘Merritt's Supreme’ is ideal for gardeners seeking vibrant colour and sturdy, compact form.

Hydrangea 'Merritts Supreme' purple flower.

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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, Hedging, Living areas
Garden styles:Alpine, Backyard, City & Courtyard, Cottage, Formal, Frontyard, Japanese, Modern, Rock
Easy to grow?Yes
Maintenance requirementsSome
Growth rateMedium
Also known as
Sku14779

What are the garden uses for Hydrangea Merritt’s Supreme in NZ?

Hydrangea Merritt’s Supreme is a much-loved shrub in NZ gardens. It is most commonly grown as specimen, used as an informal hedge, added to a mixed planting, or planted as a backdrop for smaller plants. It is a great complement to a modern or cottage garden, bringing both colour and elegance to a space. It is the gorgeous foliage and beautiful flowers of this plant that makes Hydrangea Merritt’s Supreme an excellent choice for a NZ garden.

What does the Merritt’s Supreme Hydrangea need to grow well?

The Merritt’s Supreme Hydrangea grows best when positioned in full sun or partial shade on a well-drained soil that is slightly acidic. It is tolerant of frost, cool climates, coastal environments, and humid climates. Wind protection is important to ensure branches are not snapped and this will also result in a better formed plant that will flower more prolifically.

Can You Grow The Merritt’s Supreme Hydrangea In Pots?

The Merritt’s Supreme Hydrangea looks amazing when grown in a pot. Its smallish size and prolific flowering makes it a fabulous specimen. Choose a that is at least 50 cm all and wide and be sure to fill it with potting media and use fertiliser tablets so it flourishes. Trim the plant right back during winter so it comes away lush and flowers more prolifically.

Hydrangea Merritt’s Supreme for sale

The Plant Company has the best Hydrangea Merritt’s Supreme shrubs for sale in NZ. Our production nursery specialises in growing amazing plants and our logistics team pack them carefully for our customers. The pricing is competitive and the quality is exceptional. Let us look after your Hydrangea Merritt’s Supreme needs and impress you with both our products and service!

Hydrangea Merritt’s Supreme plant care

Hydrangea Merritt’s Supreme care is simply about getting a few easy things right so the plant thrives. they prefer a sheltered spot in either full sun or part shade. Only in very hot climates should full sun positions be avoided. A well-drained, fertile soil is crucial. Adding organic matter like compost into the soil during planting will help with soil fertility. They prefer a moist soil so consistent watering is essential, especially during dry periods but be careful to avoid overwatering as this can lead to root rot. Applying shrub fertiliser in spring will keep the Hydrangea Merritt’s Supreme plants well-fed for the year. Prune in late winter or early spring and continue to remove spent flowers to encourage further blooming. Applying mulch around the base of the plant helps retain moisture, regulate soil temperature, and suppress weeds. Monitor for pests like aphids and diseases like powdery mildew and treat as needed with appropriate measures.

Questions and Answers

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