Grandiflora - the so-called roses floribunda (plentifully blooming), characterized by particularly large sizes of flowers. In Russian, the name of the group is pronounced "grandiflora." As a rule, these are unpretentious hybrids that do not require complicated care. Even inexperienced gardeners can engage in the cultivation of bushes. The most important thing is to adhere to the recommendations of specialists regarding care.
The following is a more detailed explanation: the rose of grandiflora - what it is, as well as a list of the most interesting varieties. Of course, questions regarding the rules for planting, care, and reproduction will be raised. Special attention will be paid to diseases and pests of rose bushes of this group.
One of the varieties in this group
Variety Description
Grandiflora roses are powerful sprawling rose bushes, the height of which reaches 150-200 cm. Upright shoots are literally dotted with leaves and covered with sharp spikes. Leaf plates are naturally endowed with an ovoid shape and painted in a dark emerald palette. Their extreme parts resemble notches.
Each loose inflorescence consists of 4-5 terry buds. One bud contains 40 petals. Diameter of flowers can reach 15 cm.
Flowers can be painted in:
- white
- pink;
- red tones.
Advantages and disadvantages
Grandiflora roses are endowed with a number of advantages. Thanks to the painstaking work of breeders, this variety of plants with thorns:
- growing rapidly;
- blooms magnificently;
- able to tolerate minor night frosts;
- with proper care, it may be resistant to pests.
Among the shortcomings, it is worth highlighting the need for strict adherence to recommendations regarding care. Otherwise, flowering may not occur.
Attention! The article provides general advice and recommendations regarding grandiflor - individual varieties may require additional attention.
Use in landscape design
Grandiflora large-flowered roses are often used by landscape designers to ennoble the territory. Tall bushes are planted in the background of flower beds. Green spaces often serve as hedges or as a separate tapeworm.
Rose Queen Elizabeth, named after the Queen of Great Britain
Standard Variety Forms
Among the best varieties of roses, grandiflor is worth highlighting:
- Queen Elizabeth is a variety whose bushes reach a height of 100-110 cm. Spreading bushes are studded with goblet-shaped buds. The diameter of each flower is in the range of 9-12 cm. With growth, the goblet outlines of flowers are replaced by a flat-cup shape. Roses bloom throughout the summer, filling the area with a delicate aroma.
- Sonya (Sonia Meilland) - shrubs characterized by hard and erect shoots, the height of which reaches 100-110 cm. The flowers are painted in pink-coral shades. The diameter of the flowers endowed by nature with an amazing fruity aroma is in the range of 10-11 cm.
- Gold Medal Bushes of this variety can reach a height of 75-80 cm. Golden yellow flowers, whose diameter is 11 cm, have an amazing aroma. Flowering continues throughout the summer months.
- Komsomolsky light. Bright velvet red flowers are literally filled with gold in the central part. The diameter of the opened buds exceeds 12 cm. Low-double flowers can decorate any garden. The height of the bushes can exceed 120 cm. Thanks to the painstaking work of breeders, the bushes are resistant to most diseases.
- Love (Love) - a variety characterized by an incredible color of petals. Bright red palette gracefully intertwined with silver-white shades. The flowering variety Love is plentiful. Dense flowers cover the bulk of leaf blades. The diameter of the buds, endowed with goblet outlines, can reach 12-13 cm.
Amazing Grandiflora Gold Medal
Grandiflora Rose Growing
Planting seedlings is recommended in the first weeks of May, when the threat of night frost is over. When choosing a place to land, you should give preference to a well-lit area.
Note! The first time after planting, you should shade the bushes with a special garden net. This will prevent burns on leaf plates.
Soil for planting is prepared independently. The soil mixture should include:
- peat;
- sand;
- wood ash;
- complex mineral fertilizers.
Step-by-step landing process:
- Having picked up a site for landing, you need to dig a hole, the depth of which reaches 55 cm.
- Sapling roots are dipped for several hours in a basin filled with a liquid clay mixture containing mullein.
- After a specified period of time, the seedling is placed in a dug recess. The root system is carefully leveled. The root neck is deepened 5-6 cm below the soil surface.
- The pit is filled with self-prepared soil mixture.
- 20-25 liters of water are poured under the bush.
- The area of the trunk circle is mulched with sawdust or needles. The mulch layer should reach 5-6 cm.
Grandiflora on the site
Care Features
In order for grandiflora roses to please lush flowering, they must be systematically watered. In the summer, 15-25 liters of water are poured under the bush every 5-7 days. If it is raining outside the window, it means that it is not necessary to moisten the soil.
Note! When watering, do not allow drops to fall on the leaf plates.
After watering, the soil around the green spaces must be loosened if mulching is not used. It is important to remove weed grass from the beds in a timely manner.
As fertilizers for plants with thorns should be used:
- mineral complexes;
- potassium phosphorus preparations;
- superphosphate and potassium nitrate.
To give the bushes the correct shape and increase the flowering volume, it is necessary to systematically trim the forming and sanitary type. Trimming is done with a well-pointed knife. Slices should be inclined. Dead woods are cut off under the base. Each section of cuts must be treated with garden varieties.
Reference! When cropping, it is necessary to retreat from the kidneys 5-6 cm.
Winter preparations
To prepare the bushes for the winter cold should be in the first weeks of October.
Green shoots of bushes are removed. Plants are peeled of buds, leaf blades and flowers. Each bush spuds. The shoots pressed to the surface of the soil are covered with polyethylene material. Wooden boards and a layer of spruce are placed on top of polyethylene.
As soon as the first frosts come, you can throw another layer of polyethylene material on top.
Bloom
Grandiflor roses bloom begins, as a rule, from the second week of June and lasts until the fall. Terry flowers in large numbers are located on the bushes, covering most of the leaf plates. The diameter of the flowers can reach 14-15 cm. The aroma of the buds is weakly expressed, but on windy days the smell still spreads through the garden area.
In case of non-compliance with the recommendations of specialists regarding the cultivation and care of plants with thorns, they may cease to please flowering. A similar problem may occur in the background:
- planting bushes in a draft;
- incorrect trimming;
- lack of top dressing;
- bacterial damage to green spaces;
- affection of bushes with disease.
Note! For a successful cultivation, it is not enough to know what a grandiflora rose is. The rose bush still needs to be given at least a minimum of attention. Only in this case will flowering really please, and every year.
Breeding
To propagate the grandiflora bushes, you can use the method:
- cuttings;
- division of the bush.
To use the method of dividing the bush, you will need to dig a plant. Using a sharp shovel, divide its root into a couple of parts and transplant seedlings on separate pre-dug deepenings.
Note! In matters of propagation of rose bushes, cuttings are used much more often.
The step-by-step grafting process is presented below:
- For harvesting cuttings, it is necessary to pick up healthy and adult bushes. It is best to cut off branches on which buds have already bloomed.
- Each handle should contain a pair of internodes.
- Cut off the branches at an angle of 45 degrees. Leaflets should be removed from each handle. The top of the branches is also subject to pruning. It is very important to make a cut 5-7 cm above the location of the kidney.
- Prepared containers are filled with a mixture of fertile land, peat and river sand.
- Each stalk deepens by 20 mm into the ground.
- The container is covered with glass, which must be systematically removed for ventilation. The soil is moistened every 2-3 days with a spray gun.
- After a couple of weeks, the cuttings should take root. Glass at this time can already be removed.
After 20-25 days, rooted seedlings can be planted on an open bed.
Grandiflora is able to decorate any garden
Diseases and Pests
Despite the resistance of many varieties of this group to diseases, the lack of proper care can provoke damage to grandiflora:
- Powdery mildew, indicated by powdery mildew on buds and leaf blades. The treatment of green spaces with Fitosporin or Fundazole will help to cope with the disease.
- Black spotting. You can recognize a fungal infection by black-brown spots located on leaf plates. Affected bushes should be sprayed with Profit or Ridomil Gold as soon as possible.
Among the dangerous pests for grandiflor, it is worth highlighting the rosette and the spider mite. Experts recommend using funds like Sparks and Fufanon for the defeat of decorative culture.
Grandiflora is an amazing plant that fits perfectly into any landscape design. Culture will delight you with abundant and bright flowering, if you follow all the rules of agricultural technology.
