Rose John Davis is a variety of Canadian frost-resistant park roses that has been bred by breeding and does not require warming during the winter season. The main advantage of this variety is the restoration of frozen buds in the spring. The variety appeared as a result of the efforts of Svejda florists from Canada in the 70-80s of the twentieth century, a kind of hybrid of wild rosehip and rose Rugosa.
In many books, the rose is described as a shrub used for landscaping gardens, parks, low fences, etc. With long and flexible shoots, it reaches a height of 2 meters and a width of 2.5 meters. On the branches of the plant a moderate number of thorns, small glossy leaves of bright green color. Over time, growing, shoots lie on the ground.
What is this rose
Flowering is particularly plentiful in the first half of summer, after which it is moderate, the bush continues to bloom until the cold. Basically, from 10 to 15 flowers of pale pink color with golden stamens in the core are located on one brush. A fully open flower has a flat shape.
Important! Unpretentious, frost-resistant (can withstand up to -29 degrees without additional shelter) and disease-resistant variety, with careless attitude it can be infected with black spotting or powdery mildew.
Advantages and disadvantages
- winter hardiness;
- disease resistance;
- blooms before the rest of the roses;
- different abundant and lush flowering;
- not afraid of sunlight;
- Ideal for decorating fences and fences.
The main disadvantages:
- grows poorly in the shade;
- moody when planting (likes fertile soil);
- water the plant often and plentifully.
Use in landscape design. This variety, John Davis Rose, is excellent in combination with other rose hybrids. For a better visual effect, the plant should be placed in groups of several bushes against a green lawn or coniferous trees and shrubs in the sunny zone. It does not harm the "neighbors" on the front garden, it gets along well with irises, geraniums, lavender, carnations. The rose garden should be a central figure surrounded by other less lush varieties of roses. Ideal for decorating hedges, fences, gardens, for decorating arbors.
- a rose is planted with pre-prepared seedlings;
- planting is necessary in the spring;
- a landing site should be chosen sunny with good air circulation, thus protecting against pests;
- Before planting, the soil should be treated with mineral and organic fertilizers.
Step-by-step procedure for planting roses John Davis
Step-by-step instructions for planting a rose:
- You need to choose a suitable sunny place with light and loose soil.
- In the ground, make a depression about 60-70 centimeters.
- Add special fertilizers to the hole in advance.
- To prevent stagnation of moisture, it is necessary to lay a small layer of drainage material on the bottom of the pit.
- When filling a seedling with earth, you need to leave the root neck 3-4 centimeters below the soil level.
- At the end, water the planted plant with a moderate amount of water.
Watering rules and humidity. Since the plant is placed on the sunny side, it needs timely plentiful watering, especially in the dry summer period. Water the bush should be soft, slightly warm water up to 3 times a week.
Top dressing and soil quality. Rosa John Davis is very willing to take fertilizers in the form of fertilizing. To stimulate the growth of the green mass of the bush, it is necessary to feed it with organic fertilizers in early spring. Superphosphate is introduced under the perennial during the period of bud development. A couple of weeks after flowering, fertilizing with mineral fertilizers is carried out.
Pruning and transplanting
Attention! Be sure to prune the rose every spring, remove dry, diseased and frozen branches. If you need to give the bush a neater shape, it will help to make curly trim. Overgrown bushes are cut or thinned out for the winter.
Another important point: in the first year of planting, it is recommended not to let the rose blossom, pruning the buds, for its more magnificent flowering next year and to prepare for the first wintering. You can leave a couple of inflorescences in the last month of flowering.
It is possible to transplant Davis in the spring, before the appearance of blossoming buds. Having dug up a bush and dividing the secateurs into parts with shoots, you can plant a bush. If there is no desire to plant a rose, or the bush is too small for this, you just need to remove the branches and roots that have deteriorated over the winter and plant them again in the ground.
Important! Features wintering flower. Although this variety is frost-resistant, it still requires a little preparation for winter. To begin with, dry the bush to spud, and then wrap it with kraft paper or felt in several layers.
The period of activity and rest. The rose bush begins to bloom a little earlier than its relatives, from the beginning of the first month of summer until the end of August. In August, flowering is not so plentiful, but the buds on the branches become larger, pale pink, with a beige tint, until October.
Care during and after flowering
There are recommendations for plant care:
- heavy watering is the main care during the flowering period, in dry weather, about three times a week, flood the soil up to half a meter in depth. The ideal time for watering is evening, the water penetrates deep into the earth without evaporating;
- several times a season it is worth spraying the plant with special solutions containing insecticide and fungicide. Such a procedure will protect the rose bush from harmful annoying insects and prevent the appearance of fungal diseases.
What to do if it does not bloom
A rose may not bloom for several reasons:
- the main reason for poor flowering John Davis may be acquired seedlings of poor quality. Such specimens grow slowly and bloom sporadically in the first years;
- in the first year of planting, the bush is stunted, if you do not remove flowers from it that slow its development;
- the variety, although unpretentious, can hurt. It is necessary to carefully examine it, carry out cleaning and treat it with special solutions (for example, potassium monophosphate), which can be purchased in a store for gardeners or on the market;
- abundant flowering occurs in the first two months, with the onset of cooler weather it subsides a bit. Quite possibly, it just got colder.
Cuttings are the most common method of propagation of a given variety. Cuttings are taken from an adult plant in July, having previously prepared for them a greenhouse with fresh manure and fertile soil. Having placed the cuttings in the soil about 2-3 centimeters deep, they are sprayed with water and covered with a film. It is necessary to water and air the planted cuttings every day. About two to three weeks after the appearance of callus, the shelter is removed. After another two weeks, the root system begins to develop. Sprouted bushes are left to winter in the greenhouse, and in the spring they are transplanted to the front garden.
Rosa Canadian John Davis
Rose of Canada John Davis is a disease-resistant variety of park roses, but is still susceptible to ailments such as black spotting and powdery mildew. These diseases mainly spread from the bottom of the bush to the top and as a result, the leaves and flowers fall off ahead of schedule. This "nuisance" is better to prevent than to treat, and to carry out spring prevention. If, nevertheless, the plant becomes infected, first of all, cut the affected branches, and burn them. Next, treat the rose with a preparation containing copper, fungicides, systemic or systemic, according to the instructions. When preparing the bush for wintering, it is necessary to prune its infected parts and treat it with a solution of iron sulfate (3%).
Thus, the Canadian rose John Davis requires a rather complicated departure. It is better for a beginner gardener to study in detail the tips that are given regarding this plant. If you manage to fulfill the whole range of requirements for caring for a rose, then it will become a bright decoration of a garden or flower bed.