Guelder-rose is a very beautiful shrub, particularly appreciated for its appealing spring blooming.
Key Guelder rose facts
Name – Viburnum opulus
Family – Caprifoliaceae (honeysuckle family)
Type – Shrub
Height – 6 ½ to 16 feet (2 to 5 meters)
Exposure – full sun or part sun
Soil – ordinary, well drained
Foliage – deciduous
Flowering – April to June
Proper planting, caring for it and pruning contribute a lot to the proper growth of your guelder-rose and to its blooming and spring as well.
Preferably in fall or spring for specimens purchased in pots or in containers.
- It likes being in sunny locations and even more so in lightly shaded emplacements.
- It loves well drained soil, but still needs to be watered in case of extended dry spell.
- Follow our advice on planting shrubs.
For the first few years after planting, feel free to water now and then to ensure proper settling in and guarantee the growth of the shrub.
Wait for the blooming of the guelder-rose to end if you wish to reduce or reshape the shrub.
- Find our advice on pruning shrubs.
Note that blooming only occurs on growth from the previous year.
- If you prune in spring, you might be cutting off last year’s growth. This means no blooming until next year!
- Best is to prune after the blooming, in early or mid-summer.
Hard pruning of guelder rose, guilder rose
Like most Viburnum, it’s best by far to spread hard pruning over two-three years. Three years is best since it will ensure survival.
- right after the blooming (early summer), cut back to the trunk about one in three large branches. Also remove dead wood. Trim other branches much shorter than usual, removing a third of their length.
- in the following year (same season), cut back another group of branches: half of the long ones that remain. Thin shoots that will have appeared from the trunk, keeping those growing outwards. If some of the shoots you keep are already a foot long (25-30 cm), snip the tip off to trigger branching.
- in the last year, again early summer, cut back the last group of long branches. At this stage, you can cut the main trunk shorter if you want to, as long as growth has already started lower down beneath the cut mark.
Learn more about guelder-rose
Guelder-rose, traditionally called Snowball bush, is beautiful shrub which has a blooming as magnificent in spring as its foliage is in fall.
As part of a hedge, as a standalone or in shrub beds, its growing and maintenance is simple.
Also part of the Viburnum family is laurestine or Viburnum tinus which is often found in our gardens, and also ‘Watanabe’ doublefile Japanese snowball which has a blooming that lasts for a very long time, from May to October.
Read also on shrubs:
Smart tip about guelder-rose
Avoid locations that are too exposed to harsh sun.
Credits for images shared to Nature & Garden (all edits by Gaspard Lorthiois):
Guelder-rose hedge by Robert Nyman under © CC BY 2.0
Guelder-rose blooming on the way by Mike Finn under © CC BY 2.0
Shooting for the sky by Tuike under Pixabay license