Basic rules for growing roses in a greenhouse
Content
Features of the method
Growing your favorite flowers in greenhouse conditions is not an easy task. It is important to follow certain rules. For example, it is necessary that the greenhouse is large enough and also provides the necessary ventilation. For those who plan to grow a large number of flowers at once, it is important to take care of the full automation of the greenhouse; it will be very difficult to do all the necessary work manually.
Video "Growing roses in a greenhouse"
This video will show you how to build a rose growing business in a greenhouse.
Selection of varieties and preparation of seedlings
For growing in greenhouse conditions, it is important to choose those varieties of roses that will feel good in a greenhouse - with the wrong choice, there is a high risk that the buds will not form correctly. Such varieties as hybrid tea, floribunda and all miniature varieties have proven themselves quite well. In addition, it is important to take into account the resistance of the selected variety to those diseases that often affect plants in greenhouses, for example, to powdery mildew. Winter-hardy varieties of roses for growing in a greenhouse are not suitable.
The success of the whole business will depend on the correct preparation of the seedlings. You can get seedlings in three ways:
- order by mail;
- buy in a specialty store or nursery;
- instilling their own culture on the rose hips.
It is important that the bushes intended for planting are fresh and healthy. It will be useful to spray the seedlings with a weak solution of copper sulfate in order to protect them from various diseases. If you purchased seedlings from the nursery, you can immediately plant them in a permanent place, otherwise the survival rate of roses may suffer.
Indoor microclimate
In order for roses to grow lush and beautiful, it is important to provide them with the proper level of lighting. Remember: it is the leaves, not the soil, that need light, so the ground can be covered with a layer of mulch from rotted manure. With the arrival of autumn, plants need daily supplementary lighting for at least 5 hours.
It is equally important to maintain optimal humidity at about 70%. If this indicator deviates in one direction or another, the risk of diseases affecting roses increases.
The seedlings should be rooted keeping the air temperature at + 10 ° C. When the plants take root, the temperature range should be between +22 ° C during the day and +20 ° C at night.
Try to ventilate the greenhouse every day: it is important that the air temperature in it does not rise above +27 ° C. The duration of airing in the spring-summer period should be longer.
Landing rules
Before planting roses, be sure to enrich the soil in your greenhouse. This is done with peat, mullein and superphosphate.
If you purchased a seedling with an open root system, be sure to treat it with copper sulfate. Then we cut off all weak or underdeveloped shoots, leaving no more than 2 stems, each of which should have about four buds. All sections must be treated with any antibacterial agent, slightly dried.You can treat the roots with any growth stimulant to improve the survival rate of the bushes.
Bushes should be planted only when the soil in the greenhouse warms up enough (at least + 12 ° C). The planting density is maintained at the level of 15 plants per square meter (planting pattern - 0.3 × 0.3 m). The seedlings should not be buried too much - the growing point should remain above ground level. The land around the planted bushes is pressed and watered abundantly.
Further care
Subsequent care for planted roses consists in observing the optimal growing conditions for a particular variety, maintaining the required level of humidity and temperature.
Watering and spraying
Water the roses abundantly as soon as the soil dries out to a depth of about 3 cm. If the soil is not mulched, it can be slightly loosened after each watering. At the same time, weeds are removed and the bushes are inspected for pests or signs of disease. All roses are great for regular spraying. To do this, use water at room temperature.
Top dressing
For feeding, use a complex mineral mixture at least 1 time per month. If you cannot buy it, you can use your own fertilizer: take an infusion of mullein, diluted with water in a ratio of 1:10, and alternate it with mineral fertilizers (superphosphate, ammonium and potassium nitrate).
Formation
As a rule, when growing roses, we strive to get a flower with a long stem. To do this, pinch all lateral shoots and buds, leaving only one shoot with buds, which will form new shoots.
Experienced gardeners advise you to follow a simple rule: there should be about 30 skeletal shoots for every square meter of soil.