Rose Osiria: care and description

Rose Osiria refers to tea hybrids with large flowers. Its main feature is flowering. In 1978, the rose was declared the most beautiful rose in the world. Therefore, many gardeners grow this rose on their plots.

Description of the rose Osiria

Osiria roses are one of the most original and spectacular varieties. Characterized by a unique color of the petals: a color contrast between the outer color of the petals and the inner, dark red in the middle, and white on the outside. Large flowers are beautiful, with a pleasant aroma. The buds are elongated-pointed, have a goblet shape: they are terry, single or collected in small inflorescences. Their diameter is approximately 12-16 centimeters. They are used in the flower decoration of summer cottages, gardens and for cutting bouquets. Blooms from May until the first frost.

Rose Osiria – garden decoration

The plant is bushy, can reach 80 cm in height. Shoots are straight, or slightly articulated, long. The leaves are quite large, dark green, matte.

Growing Osiria roses

Despite the beautiful appearance, roses are vagaries in care. Therefore, you should strictly follow the rules of care so that the plant will please for a long time with a large number of beautiful flowers.

Note! The care and cultivation of the Osiria rose may not be the easiest, but the beauty and fragrance of this rose is worth the effort and patience. If you carry out proper care of the plant, then it can live for more than a dozen years.

Roses of Osiria are short and slow growing plants. It is better to plant them in places where there is a lot of sun and it is protected from strong winds. The plant is also suitable for partial shade, but where there is more sun, they will have thicker stems and larger and more beautiful flowers.

The soil

Grows in any moderately fertile garden soil. The plant prefers well-fertilized soil with organic matter such as manure, compost. The substrate must be sufficiently drained so as not to create stagnant water.

Planting a plant

Outdoor planting of Osiria roses should be carried out in areas with a fairly mild climate, and usually takes place in early May or October. Dig holes about 50×50, and fertilize with organic fertilizers, preferably manure. Buried at a height of about five centimeters above the ground, from the vaccination point.

Proper planting of roses

Seedlings before planting, for several hours, are placed in water to absorb moisture.


In hot regions, Osiria roses are watered every day. In warm, dry weather, you will need to water about once a week.

Compliance with the basic rules when watering the Osiria rose.

  • Water should reach the entire root system, not just part of it.
  • It is necessary to distribute water around the plant. There is a risk that only the part that receives water may develop and the other may dry up.

The second rule to follow when growing Osiria roses is to water abundantly in the heat twice a week. It is important to remember that the soil should always be moist.

Before watering, it is recommended to check the base of the bush. If the ground is wet, it is recommended to postpone watering to avoid stagnant water and, as a result, rotting of the roots.

Note! In addition, it is important to avoid direct wetting of flowers and leaves, and irrigate only the surrounding soil. Another important precaution is to water the plant only in the early morning or evening hours and never during full sun hours.

How to fertilize

Proper fertilization of roses is of great importance in order to enjoy flowering plants.

It is recommended to sprinkle the soil under the bush with manure every two years, which will then rot. Alternatively, you can continue to use slow-release granular fertilizers that contain the three main chemicals: nitrogen, phosphorus, and potassium. Fertilizer is scattered on the ground at the base of the plant. They use natural fertilizers, such as coffee grounds or finely chopped banana peels, which are mixed into the soil during cooking. Coffee grounds also contain small amounts of potassium, nitrogen, and magnesium.

Signs of lack of basic nutrients.

  • With a lack of nitrogen, the color of the leaves is pale green, yellowing of the leaves in the basal areas is more pronounced. Leaves are smaller than usual, flowering is not plentiful
  • The lack of phosphorus affects the leaves, they can turn purple-brown. Growth slows down and flowering stops
  • With a deficiency of potassium, the ends of the leaves and stems become brown, the buds are deformed.
  • Magnesium deficiency is manifested in light yellow spots between the veins, then these areas die off. The edges remain green. Most often, roses experience a shortage of magnesium in overly acidic soils.


Pruning is usually done annually. After cutting, only five branches are left. Flowering lasts most of the summer, so timely pruning is important, which increases the growth of shoots, allowing repeated flowering. The main thing is to remove dry flowers and leaves.



Winter pruning is carried out at the end of October, and after that the roses take shelter from the cold until spring.

To propagate roses, you can cut cuttings and place them in a pot or in the ground in the garden. All leaves are removed from the cuttings.

Pests and diseases

Osiria rose bushes are vulnerable to aphids, caterpillars, spider mites and larvae. They are also prone to developing black spot, powdery mildew and pink rust.

Powdery mildew on leaves

Among the most common pests are aphids and small insects that suck out the juice, causing the rose to dry out. You can fight aphids with insecticides or folk remedies. You can use a few simple and cheap homemade chemical-free products.

Soap solution – an ecological means of combating aphids. Dilute a tablespoon of mild soap in a liter of water, mix well, and gently spray the plants.

Plant aromatic herbs such as basil, rosemary, lavender, mint, lemon balm, sage, and coriander in your garden to deter aphids.

Another enemy of this flower is a type of mite – a red spider. It can be eliminated with the help of pesticides.

Leafhoppers: It is enough to remove or burn the leaves most affected by these insects.

Diseases caused by a fungus

Gray mold is produced by a fungus and causes a gray mold to form on the foliage, and can also be a problem. In this case, the plant will be covered with gray spots on the leaves. Often the reason is the poor protection of the Osiria rose after pruning. To get rid of mold, it is recommended to use special tools.

Powdery mildew – white spots of powdery consistency on the leaves.

The disadvantage of the Osiria rose is that the bush is not tall, it grows very slowly. The flowers have weak necks, which means that the petals fall off quickly. Osiria roses are not hardy and definitely need good winter protection in cold beds. In winter, it is recommended to protect the soil with mulch based on dry leaves.