These are deciduous or semi-evergreen open shrubs and scrambling climbers. The leaves are divided into 5 or 7 oval leaflets, with rounded or pointed tips and they are sometimes toothed. The flowers bloom in various colours, some with beautiful fragrances, and are borne mainly in mid summer to mid autumn. They are fully hardy and will usually prefer an open, sunny site with fertile, moist but well drained soil. You should try to avoid planting them in an area where roses have been grown in recent years as problems may occur due to disease; either change the soil or choose another site. To obtain blooms of high quality, feed them in late winter or early spring with a balanced fertilizer and apply a mulch. In the spring-summer feed at 3 weekly intervals. Rain may damage the flowers of some roses, causing the petals to form 'balls'. Propagation is by budding in the summer or by hardwood cuttings in the autumn. All roses will be prone to attack by various pests and diseases, i.e. aphids, blackspot, powdery mildew, die-back, canker, crown-gall, honey-fungus, soil-sickness, viruses, downey mildew, rust and sawfly.
Rosa omeiensis is a species of Rosa native to central and southwestern China. It is a shrub growing to 4 m tall, often very spiny.
Microclimate
Sun
Shelter
Aspect
Hardiness
Drainage
Semi-moist conditions
Soil Type
Needs fertile, moist but well drained, chalky, clay soil.
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