Sweet viburnum
Viburnum odoratissimum · Viburnaceae
📷 KENPEI · CC BY-SA 3.0
The gardener's calendar
In autumn, ease off feeding and take the chance to clean up around sweet viburnum and prepare for winter.
ID card
- Foliage
- Evergreen, dark green and glossy
- Flowering
- May to June, very fragrant white flowers
- Mature size
- Approximately 3 m tall
- Growth
- Moderate to fast
- Hardiness
- Zones 8-10, sensitive to severe frosts
- Origin
- Southeast Asia (China, Japan, Himalayas)
- Soil type
- Well-drained, slightly acidic to neutral
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability medium.
Expert tips
The key tip
Viburnum odoratissimum grows even in part shade but produces its best fragrant flowers in full sun for 4-5 hours daily. The soil must stay fresh without becoming waterlogged—it's a very accommodating plant.
The common mistake
People worry it will 'dry out' in the sun and over-protect it in damp shade: it becomes less floriferous and more prone to fungal diseases.
The pro's trick
In March, after flowering, give the stems a light prune (cut back 20-30 cm) to densify the branching and guarantee better flowering the following year.
Care
Watering
Water regularly to keep the soil moist but not waterlogged, especially during active growth and warm periods. Once established, the fragrant viburnum tolerates moderate drought. Reduce watering in winter if the plant slows down.
Light exposure
Place your fragrant viburnum in partial shade, ideally with a few hours of morning or late afternoon direct sun. In warm regions, partial shade in summer protects the foliage. Avoid overly hot south-facing exposure in Mediterranean climates.
Pruning and shape
Prune lightly after flowering (July) to maintain a harmonious shape and remove dead or poorly oriented branches. Avoid severe pruning that could compromise the following year's flowering. The natural, compact and upright habit requires minimal intervention.
Fertilizer
Apply a balanced fertilizer in spring when growth resumes. An autumn application with moderate nutrients helps prepare for winter. Rich soils reduce the need for additional feeding.
Soil and planting
Prepare well-drained soil, lightly enriched with organic matter. The fragrant viburnum prefers acidic to neutral pH. Improve heavy soils with compost or potting mix before planting.
Diseases and pests
Generally hardy, it can be affected by scale insects or aphids under stress conditions. Watch for leaf spots or decline. Good drainage and adequate air circulation limit fungal problems.
Did you know?
The fragrant viburnum is highly valued in East Asia and Mediterranean regions as an ornamental shrub for its intoxicating fragrance released by its small white clustered flowers, particularly intense in the evening and after rain. Its botanical name, odoratissimum, literally means 'very fragrant' in Latin.
Where to buy it
Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.
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Tips generated and checked by Viridia — adapt them to your local climate.