Content
- 1 History of selection
- 2 Description of the variety of Canadian park rose John Franklin and characteristics
- 3 Advantages and disadvantages of the variety
- 4 Reproduction methods
- 5 Planting and caring for park rose John Franklin
- 6 Pests and diseases
- 7 Application in landscape design
- 8 Conclusion
- 9 Reviews of the Canadian park rose John Franklin
Rose John Franklin is one of the varieties that is appreciated not only by landscape designers, but also by gardeners. The high level of decorativeness of the crop and its characteristics have allowed the plant to become famous throughout the world.
History of selection
Work on Canadian roses began in the 19th century by breeder William Sanders, who sought to develop frost-resistant hybrids. His work was continued by his colleague Isabella Preston.
The breeder sought to create not only a frost-resistant, but also a picky hybrid. In total, Isabella Preston bred more than 20 Canadian roses.
In the 50s, the Canadian government allocated funds for a program to develop frost-resistant hybrids. This led to the creation of two large groups at the Morden and Ottawa research laboratories: Explorer and Parkland.
The John Franklin variety belongs to the Explorer series. It was bred in 1970 by crossing the roses Lili Marlene, Red Pinocchio, Joanna Hill and Rosa Spinosissima altaica. The variety became widespread around the world in 1980.
Description of the variety of Canadian park rose John Franklin and characteristics
The hybrid reaches a height of 100-125 cm. The leaf plates are medium-sized, round in shape, green in color. The shoots have yellowish or green thorns on the trunk.
Spreading bush, up to 110-120 cm wide
On each branch, from 3 to 5 buds of rich crimson or red shades are formed. The appearance of the flowers is unusual for roses; they are semi-double, with pointed petals, which from a distance makes them look like carnations. The diameter of each bud is 5-6 cm. Roses are characterized by a spicy aroma.
Each flower produces up to 25-30 petals
Buds appear on shoots throughout the summer season, from July to the end of September, before the onset of frost.
It is recommended to cultivate the variety in the North-West of Russia, the Middle Urals or Southern Siberia. The bush can withstand frost down to -34-40 °C.
Advantages and disadvantages of the variety
Park rose John Franklin, according to photos and reviews, matches its description. Most gardeners, when cultivating the variety, have identified the following advantages:
- resistance to temperature changes;
- successful development and flowering in partial shade;
- trouble-free propagation by cuttings;
- buds fade 15-20 days later compared to other varieties;
- abundant flowering;
- tolerates dry periods well;
- ease of care;
- independently clears itself of faded buds;
- recovers quickly after pruning.
Disadvantages of a hybrid:
- presence of thorns;
- average resistance to fungal diseases.
Most gardeners note that although the plant can withstand low temperatures, frost can damage its stems. Rose John Franklin recovers quickly, but also blooms less profusely throughout the season.
Reproduction methods
You can increase the number of bushes in several ways: cuttings or grafting. The latter method is rarely used. Propagation by cuttings allows you to preserve the varietal characteristics of the plant, and the young bush will have stronger immunity than seedlings obtained by grafting.
Cuttings should be carried out in the last week of June or early July. You can take cuttings in the fall and then leave them in a cool room over the winter to begin the propagation procedure in the spring.
If necessary, you can store John Franklin rose cuttings in the refrigerator, periodically moistening them and checking for mold.
Algorithm of actions:
- Pour fertile soil mixture into the box.
- Cut rose shoots into 12-15 cm lengths.
The lower leaf plates should be removed and the upper ones slightly shortened
- Transfer the workpieces to moistened soil, cover the container with film or glass.
The cuttings should be ventilated daily and condensation should be removed from the shelter.
If the cuttings grow and take root, then the procedure is done correctly. Young roses should be transplanted into open ground.
Planting and caring for park rose John Franklin
If the root system is closed, then the bush can be planted in both spring and autumn. When the roots are not protected, it is not recommended to plant the variety in the autumn months: the rose may not have time to take root if frosts begin ahead of schedule.
You should purchase seedlings from trusted suppliers or specialized stores. The selected rose must be grafted. There are no signs of rot, plaque, or cracks.
If the seedling's roots are closed, then such John Franklin roses will take root faster than samples with an open root system
On the site for the variety, a ventilated, well-lit place should be allocated. It is allowed to plant the plant in light partial shade.
The optimal soil composition for John Franklin roses is fertile and loose soil. The medium must be neutral or slightly acidic.
To prepare a place for planting, you need to dig up the ground, add peat, ash and humus into the soil to a depth of 2 shovels, and leave for several days.
Landing algorithm:
- Trim the tops of the shoots by 1-2 cm. Treat the roots with a growth stimulator.
- Dig a hole so that the roots of the bush can be straightened. When planting several roses, keep a distance of 1 m between the holes.
- At the bottom of the hole, lay out a drainage layer of small pebbles and broken bricks.
- Fill the hole 2/3 full with a soil mixture of soil, ash, and peat.
- Place the John Franklin rose in the hole, sprinkle it with soil, deepening the grafting site by 10 cm.
At the end of the work, water the plant generously and mulch the ground around it using sawdust or tree bark.
Caring for the John Franklin rose variety involves timely watering, loosening, and fertilizing. It is recommended to use complex products as fertilizers. They must be added to the soil three times, 14 days after planting, in mid-summer and autumn. The bush does not require pruning: it is enough to remove damaged shoots in the spring.
And although Canadian roses do not need shelter, the John Franklin hybrid is less stable than other representatives of the group. Flowering will be more abundant if the bush is covered for the winter.
Before covering the branches with improvised materials (fabric or spruce branches), it is recommended to spud the plant
Pests and diseases
If the integrity of the stem is damaged or an infection develops, there is a risk of burns or cancer. A yellow spot, swelling or growths appear on the shoot.
If an affected area is identified, it is cleaned and covered with garden varnish, or the shoot is completely removed
If cancer is diagnosed at the “tumor” stage, then treatment is pointless. The bush will have to be dug up and burned to protect other plants.
Rust is characterized by the appearance of a yellow powder on leaf plates. If the leaves turn brown, this means that the development of the disease is in full swing, and it will appear next year.
As a treatment for rust, it is recommended to treat the bush with Fitosporin or Fundazol
Brown or black spots that appear on the leaf and gradually merge together are a sign of black spot. As the disease progresses, the leaf blades curl and wither and fall off.
As a therapeutic measure, all affected parts of the rose should be removed and burned, and the bush should be treated with Skor
When affected by powdery mildew, the leaves of the flower become covered with a whitish coating. If treatment is not started in a timely manner, the bush will die from lack of nutrients.
To get rid of a fungal disease, the John Franklin rose should be irrigated with a solution of copper sulfate.
The main reasons for the appearance of the disease are planting in a poorly lit place inaccessible to the wind. Excess moisture, temperature changes and lack of care are a favorable environment for bacteria.
Application in landscape design
Since the bushes of the John Franklin rose are erect, the variety can be used either in a single planting or by placing it next to other roses.
The rose looks good in stone fences, near gazebos, in parks
You can place the flower next to other varieties, against the background of coniferous plants. The John Franklin rose is also planted along fences and placed in mixborders.
Conclusion
Rose John Franklin is a representative of Canadian park species. The hybrid is unpretentious, frost-resistant. With proper care, it produces abundant flowering throughout the summer season. This feature allows the John Franklin hybrid to be used both in landscape designs of public places and private gardens.
Reviews of the Canadian park rose John Franklin
