Rose grandiflora: description and characteristics of the best varieties, cultivation, reproduction
The first hybrid of rose grandiflora was bred more than 60 years ago by American W. E. Lammerz. Queen Elizabeth owes her decorative properties, immunity, winter hardiness to the hybrid tea variety Charlotte Armstrong and the Floradora rose floribunda.
Description and characteristics of grandiflora roses
The grandiflora group combines varieties of garden roses that bloom profusely and continuously throughout the summer. The first buds open in the first half of June, the last in autumn. The flowers are semi-double, double, large. Diameter 10-15 cm.
Old varieties of roses almost do not smell, newly bred ones have a delicate, pleasant aroma. The bushes are compact or semi-spreading, the shoots are powerful, upright. 1 or 3-5 flowers are formed on the stem. Rose grandiflora can be grown in regions 6, 7th winter hardiness zone.
Advantages and disadvantages
Hybrids have many advantages. They bloom profusely and for a long time. They rarely get sick. All varieties are suitable for cutting. Bushes are decorative, they are widely used in landscape design. There are some minor downsides. Bushes, early and incorrectly covered for the winter, rot. The decorativeness of the flowers suffers from the rain.
Popular Representatives
All roses described below can be seen in the Nikitsky Botanical Garden. It was founded by H. H. Steven in 1824. It was engaged in the selection of garden roses, grandiflora, including N. D. Kostetsky, mother and daughter Klimenko, K. I. Zykov.
Samourai (Samurai)
Old variety (1966), French, with bright red, large cupped roses. Buds of 17-25 petals bloom on compact bushes covered with dark green, slightly glossy ovoid leaves. Rosa Samurai was repeatedly exhibited at international exhibitions, where she was awarded honorary awards.
Delicate Caramel
The flowers are large, 13 cm in diameter, double, consisting of 100-120 petals. The buds have a delicate, sweet aroma, a delicate apricot color. The variety is grown for cutting. A bouquet of roses costs at least 2 weeks.
Elle (El)
Unlike the old varieties, which have almost no smell, Ale roses are fragrant with an exquisite aroma. It is new, but has already received international awards. Lovely peach-colored roses were highly appreciated by flower growers in Switzerland (1999) and America (2005).
Louis de Funes
The flowers are orange, shaped like a hybrid tea rose. Only one bud opens on the stem. The color of the petals is original, dark, almost orange at the edges, pale yellow at the base. Under the action of the sun, the pigment changes tone. The edges turn crimson and the middle part turns red.
White Pearl
During the summer, 3-5 snow-white, semi-double flowers with a diameter of 10 cm bloom on each stem. The variety is resistant to diseases: powdery mildew, black spot. Rain does not affect the decorative properties. Winter hardiness at the level of the 6th zone according to the USDA classification. The variety appeared in 1965, its creators are Z.K. Klimenko, V.N. Klimenko.
Valentina Tereshkova
Z. K. Klimenko is the author of an elegant, stylish rose. Florists learned about the existence of the variety in 2008. It is named after the first female astronaut. Characteristics of densely double flowers:
- bicolor, inside cherry red, outside cream;
- petals in bud 105;
- diameter 7-9 cm.
Winter hardiness from -18 to -23 °C.
Gurzuf
The variety can be grown in regions belonging to the 6th winter hardiness zone. He has powerful bushes about 1 m high, covered with shiny, dark green leaves. Double flowers - 40 petals in a basket, large (12 cm), bicolor, pink and cream colors.
Komsomolsky Ogonyok
Bushes are not compact, dense, 0.8-0.9 m high. Winter hardiness of the variety is from -18 to -23 °C. 1 to 3 flowers open on the stem. They are large, semi-double, bright scarlet in color. The diameter of the baskets is 12 cm. They contain 15-20 petals.
Coral Surprise
Semi-spreading bushes, medium height (0.6-0.8 m), diameter 0.6 m. Coral bud color, diameter 12 cm. Baskets are semi-double, cup-shaped, consist of 20-25 petals. Hardiness zone 6.
Major Gagarin
Old domestic variety (author V. N. Klimenko) flower growers have been growing since 1956. The bushes are tall (0.9-1 m), bloom profusely for 3 months. Already in the first decade of June, fragrant buds of pale pink color are formed on the stems, consisting of 60 petals. More than 100 roses open per season on one plant.
Marina Steven
The variety is grown in the 6th winter hardiness zone. The shape of the buds is similar to that of a hybrid tea rose. 1 bud opens on the stem with pale pink and cream petals. The variety was bred recently, in 2006. Author - Z. K. Klimenko.
Theodosian Beauty
An old domestic variety bred in the Crimea (1964). Roses are peony-shaped, terry buds of 30-34 petals with a diameter of 14 cm. Bushes are tall (1 m), bloom profusely. The second wave of flowering continues until the end of autumn.
Growing details
For planting in nurseries, gardening stores, he althy seedlings are purchased in containers or with an open root system. Dried roots are reanimated - the seedlings are placed overnight in a bucket of water.
Before planting, they are dipped in a mash of clay, water, mullein.
Growing space
Suitable only sunny places, protected from the wind. The structure of the soil is not important. pH level is neutral or slightly acidic.
Terms and rules of boarding
Rose grandiflora seedlings are planted in the garden in spring, when the soil warms up to 8-10 ° C, or in September-October. They dig holes of medium size - 0.40.4 m. When planting several plants, they are placed at a distance of 0.5-1 m.
First, drainage (crushed stone, expanded clay) is poured into the hole, then half of the fertile soil.The roots are straightened, directed down, covered with soil and rammed. The root neck is deepened. The hole is watered, mulched. In the spring, the shoots are cut into 3-4 buds, but this is not done in the fall. Slices are covered with var.
Rose Care Tips
Care is not complicated. Properly planted bushes grow in one place for decades. For abundant flowering, roses are fed, bushes are formed.
Irrigation and fertilization
Culture loves moisture, especially during flowering. In summer, under an adult bush, 1 bucket of water is poured 1 time in 7 days. The next day, the soil around the roses is loosened. Fertilize several times during the spring-summer-autumn season.
| Must | Superphosphate |
| Potassium nitrate | |
| Complex fertilizer for roses | |
| Early August | |
Pruning grandiflora
In autumn, green shoots and dry branches are cut out at ground level. In summer, the bush is formed, giving it a shape. The branches are cut to the outer bud, departing from it 5 cm.
To stimulate the formation of new buds, dried flowers are removed.
Preparing for winter season
In early October, cut the buds, remove the leaves. Bushes spud, mulch, bend to the ground, fix with hairpins. When sub-zero temperatures are established, a shelter is constructed from a covering material folded in several layers. The frame is made of arcs, shields, boxes.
Protection of plants from diseases and pests
From powdery mildew, the aerial part is sprayed with a solution of "Fundazol". To prevent the fungus, rose grandiflora is treated with Fitosporin-M.
When black-brown spots (black spot) appear on the leaves, use the drug "Profit". Bushes protect against insects with Fufanon.
Reproduction methods
Grandiflora is propagated vegetatively. Most often, flower growers root cuttings cut from he althy, adult bushes. For cutting, choose strong stems on which all the buds have faded. The shoot is cut straight from above, below at an angle of 45 °. 2 internodes are left on it.
Cuttings are rooted in mini-greenhouses. A mixture is used as a soil:
- turf land;
- peat;
- sand.
Old bushes are propagated by dividing the rhizome. They are dug up. The root is cut into 2 parts. The resulting seedlings are planted in a permanent place.
Landscape use
In group plantings, varieties Valentina Tereshkova, Gurzuf are used. Bushes covered with double flowers are combined with clematis, delphinium, lupine, sage, lavender, geranium. Plants with blue and purple inflorescences are best shaded by rose grandiflora.
Grandiflora variety Mayor Gagarin is grown for cutting. Medium-sized bushes of hybrids serve as a decoration for the rose garden. They are grown for decorative purposes for landscaping streets, house adjoining territory. Tall varieties are planted in the background of flower beds. Bushes form hedges.
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