Chinese rose
Rosa chinensis · Rosaceae
📷 Prenn · CC BY-SA 3.0
The gardener's calendar
Ideal time to plant chinese rose: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Rosaceae
- Form
- Shrub
- Foliage
- Deciduous to semi-evergreen depending on climate
- Flowering
- April to November (nearly continuous)
- Adult size
- 0.6 to 1.5 m in height
- Growth rate
- Fast to moderate
- Hardiness
- Low hardiness, prefers temperate climate (from -5°C)
- Origin
- China
Expert tips
The key tip
Arrosez régulièrement et profondément, surtout en période de croissance : le sol doit rester humide mais jamais détrempé. Appliquez un paillage de 5 cm au pied pour maintenir l'humidité et réguler la température du sol, qui varie beaucoup selon les saisons.
The common mistake
La plupart des jardiniers tuent leurs rosiers chinois en les arrosant par le feuillage ou trop irrégulièrement : cela provoque l'oïdium, et le manque d'eau crée une stress qui bloque la floraison.
The pro's trick
Taillez court (30 cm) en fin d'hiver avant la reprise : cela force la plante à produire 3 à 4 nouvelles branches bien ramifiées, bien plus efficace qu'une taille légère. Retirez aussi le bois mort et croisé.
Care
Regular watering
Water deeply and regularly, about 2 to 3 times per week depending on conditions. Keep the soil moist but not waterlogged, as excess water promotes fungal diseases. Reduce watering in winter. Prefer watering at the base to avoid wetting the foliage.
Light requirements
Place your China rose in full sun, with a minimum of 6 hours of direct sunlight daily for abundant flowering. Light shade is tolerable in very hot climates. Avoid overly shaded areas which would reduce flowering.
Pruning and maintenance
Prune lightly and regularly to maintain shape and encourage branching. Remove spent flowers to stimulate new blooms. In late winter, perform more vigorous pruning to rejuvenate the shrub.
Soil preparation
Rosa chinensis appreciates rich, well-drained, slightly acidic soil. Improve the soil with compost or potting mix at planting time. Good drainage is crucial to prevent root rot.
Fertilizing
Feed your rose monthly from April to September with a balanced or rose-specific fertilizer. Stop fertilizing in autumn to prepare for dormancy. A formula rich in potassium promotes flowering.
Disease prevention and control
Watch for powdery mildew, rust, and canker which frequently affect this species. Maintain good foliage aeration and avoid excessive moisture. If symptoms appear, apply appropriate treatments promptly.
Did you know?
Rosa chinensis is the starting point of the modern rose: its genes for continuous flowering revolutionized rose cultivation in 18th-century Europe. Europeans crossed this rose with local wild roses to create our current garden roses, offering flowers over several months instead of the traditional June bloom.
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.