Viburnum Opulus 'roseum' Snowball Tree Shrub - Marshalls Garden

Viburnum opulus 'Roseum' produces large, round clusters of sweetly scented, sterile white flowers ...

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The Marshalls Garden Viburnum Opulus 'Roseum', commonly known as the Snowball Tree Shrub, is an excellent choice for gardeners seeking a visually striking and fragrant addition to their landscape. It is ideal for those who appreciate reliable flowering shrubs with seasonal interest and a desire for a well-regarded plant, having earned the RHS Award of Garden Merit. A minor consideration is its sterile nature, meaning it will not produce berries, and its mature size requires adequate space.

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Model Part NumberRoseum
BrandMarshalls Garden

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FAQs

Does the Viburnum opulus 'Roseum' produce berries?

No, the flowers of Viburnum opulus 'Roseum' are sterile and therefore do not produce berries.

What is the mature size of this shrub?

The shrub typically reaches a mature height of around 4 meters (approximately 13 feet).

When is the best time to plant the Snowball Tree Shrub?

The best time to plant is during autumn or spring when the weather is milder, allowing the roots to establish before extreme temperatures.

How much sun does it need?

Viburnum opulus 'Roseum' prefers to grow in full sun for optimal flowering.

What kind of soil is best for this plant?

It thrives in moderately fertile, moist but well-drained soil.

Is this shrub suitable for small gardens?

Given its mature height of up to 4 meters, it is best suited for medium to large gardens. For smaller spaces, consider more compact varieties.

How should I care for it in winter?

As a hardy shrub (H4), it generally requires no special winter protection in most garden conditions. Ensure it is well-watered before the ground freezes.

Troubleshooting

Yellowing leaves

This can be due to poor drainage or lack of nutrients. Ensure soil is well-drained and consider a balanced fertilizer application in spring.

Lack of flowers

Ensure the plant receives adequate sunlight. Pruning at the wrong time (e.g., late winter/early spring) can remove flowering wood. Prune after flowering.

Pest infestation (e.g., aphids)

Inspect plants regularly. Aphids can often be washed off with a strong jet of water or treated with insecticidal soap.

Pros and Cons

Pros

  • Striking, large white snowball-like flowers.
  • Sweetly scented blooms add fragrance to the garden.
  • Beautiful autumn leaf color provides seasonal interest.
  • Awarded the RHS Award of Garden Merit for quality.
  • Hardy and reliable performer.

Cons

  • Flowers are sterile and do not produce berries.
  • Reaches a significant mature height (approx. 4m) requiring ample space.
  • Requires moderately fertile, moist but well-drained soil for optimal growth.
  • May require trimming in summer if growth is excessive.

Setup, Compatibility & Care

Planting:

Choose a location in full sun. Prepare the soil to be moderately fertile, moist, but well-drained. Dig a hole twice the width of the root ball and plant the shrub so the top of the root ball is level with the soil surface. Water thoroughly after planting.

Watering & Feeding:

Water regularly until the plant is established. During dry periods, ensure consistent moisture. Feed annually in spring with a balanced fertilizer.

Pruning:

Trim in summer if necessary to manage size and shape. Remove any dead or crossing branches during the dormant season (late winter).

Compatibility:

Suitable for most garden settings, including mixed borders and as a specimen. It is hardy (H4) and generally robust.