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Boric acid for roses is necessary for the formation of a large number of buds and ovaries. It is this substance that helps improve the flowering of the bush. In the absence of boron, the leaves turn yellow (especially along the veins) and may fall off. This weakens the plant, making it vulnerable to diseases, pests and adverse weather conditions. Therefore, foliar treatments need to be carried out at least twice a season. This is usually done in the second half of April, as well as at the budding stage.
Is it possible to treat roses with boric acid?
Boric acid is useful for roses, flower, vegetable and fruit plants. The main importance of boron is that it promotes the rapid absorption of calcium by plant tissues. Thanks to this, rose buds form quickly and produce quite a lot of ovaries. This is directly related to the splendor and duration of flowering, i.e. decorative qualities of the shrub.
Boric acid serves as a microfertilizer. It is used for foliar feeding, but in the fall you can also pour the solution under the root (root method). The active component stimulates the appearance of new growth points on the main stem, as well as on the rhizomes.As a result, the buds and ovaries receive more nutrients, due to which their formation proceeds more smoothly.
Rose is a dicotyledonous plant. And such crops require an intensive supply of boron - ten times more compared to monocots. Therefore, feeding with this microelement is possible and necessary. Thanks to regular application, the seedlings will produce many flowers, and the roses themselves will get sick less and will withstand even difficult weather conditions well.
The drug is most conveniently used in powder form
Benefits of boric acid for roses
Feeding roses with boric acid is a fairly useful procedure, so experienced gardeners repeat it several times a season. The effect will be noticeable after a few weeks and throughout the season. The benefits of using this drug are as follows:
- the chlorophyll content increases, which makes it possible to increase green mass (this is especially important in spring and the first half of summer);
- boric acid acts as a growth stimulator. It promotes active cell division, so new shoots and leaves grow faster;
- thanks to this, the bush blooms better;
- endurance to adverse weather conditions and diseases increases;
- the growth of the root system is enhanced;
- Boric acid also helps against aphids on roses.
All the processes described directly affect the flowering of roses. The bush produces many inflorescences and decorates the garden. Also, the application of fertilizing indirectly affects winter hardiness. If you provide good shelter, almost all shoots will survive the frosts normally, and the rose will quickly grow next spring.
Signs of boron deficiency
Identifying signs of boron deficiency in roses is quite simple. The main symptoms are:
- young foliage turns yellow (parallel to the veins);
- small rose leaves lose their elasticity, curl into a tube and begin to fall off;
- the upper buds of the plant slowly bloom, and on the side branches, on the contrary, the opening occurs faster;
- flowering becomes worse. Fewer inflorescences are formed on the plant;
- Death of apical shoots may occur.
In some cases, gardeners observe symptoms that indicate excess boron. Then the rose leaves become concave, acquiring a cup-shaped shape. At the same time, brown spots appear on old leaves at the bottom of the shoot. At first they are small, and then increase in size, after which the foliage falls off. This suggests that boric acid and other similar drugs definitely cannot be given in the next few months.
When to spray roses with boric acid
In order for fertilizing to be as effective as possible, it is important to determine the timing.
Roses can be treated with boric acid several times per season:
- In the middle or second half of April, it is necessary to carry out foliar feeding of the bushes. To do this, dissolve 10 g of boric acid powder in a standard 10 liter bucket of water and start spraying.
- In June or July, when the roses began to bloom, they are re-treated with a solution of the same concentration. This should be done only when flowering has become noticeably worse. If the inflorescences are lush and appear in large quantities, you should not spray the bushes.
- In the fall, after pruning (approximately mid-October), roses are fed again with boric acid. To prepare, 2 g of powder is dissolved in 10 liters of water (i.e. the concentration should be reduced). This time the solution is applied using the root method, i.e. water the root zone.It must first be cleared of leaves, weeds and other plant debris.
If you do the treatment at this time, there is no need to add boron until the fall.
Preparation of boric acid solution for treating roses
Boric acid is sold in tablets, solution and powder. But for processing roses and other plants, it is better to take the powder form. It contains a pure substance, on the basis of which it is quite simple to prepare a solution of any concentration.
Step-by-step instruction:
- Prepare hot water at a temperature of 60-70 degrees. There is no need to use boiling water.
- Measure the required amount of boric acid powder on a scale, for example, exactly 10 g.
- First dissolve in a small volume of water, for example 500 ml, and mix thoroughly.
- Then bring to a total volume of 10 liters and mix again.
- Wait until the liquid cools to room temperature.
- After this, pour it into a spray bottle and begin processing or watering the roses.
The main method of applying boric acid is foliar
How to treat roses with boric acid
The treatment is carried out in cloudy weather, and if it is sunny outside, it is better to work in the early morning or late evening. Spraying should be avoided on rainy and windy days. The solution is applied using a sprayer, trying to get it on all the leaves (one outer side is enough).
The concentration depends on the purpose and stage of processing:
- To carry out foliar feeding, prepare a 0.1% solution of boric acid. This corresponds to the consumption of 1 g of powder per 1 liter or 10 g per standard 10 liter bucket of water.
- If foliar treatment is carried out with a mixture of acid and other preparations, for example, microfertilizers, then the boron concentration is reduced exactly by half. In this case, the consumption per 1 liter is 0.5 g, respectively, per 10 liters – 5 g of powder. Foliar treatment is carried out during the formation of buds. The exact same procedure can be repeated during flowering if not many inflorescences appear.
- For watering at the roots, i.e. When applying root fertilizer, use a solution of reduced concentration - 1-2 g per 10 liters.
- Sometimes gardeners grow flower seedlings. In these cases, it is recommended to soak large seeds overnight in a low concentration acid solution - 1 g per 10 liters. Then the sprouts will appear together, and the germination rate will be noticeably higher.
- After the seedlings have been picked, you can water the soil with a solution with a concentration of 0.5 g per 1 liter or 5 g per 10 liters.
For indoor plants, the frequency of treatment is exactly the same. Some gardeners recommend spraying once a month throughout the season. But such regularity can lead to an excess of boron in the soil, which can lead to foliage turning brown and dying.
It is especially important to carry out foliar treatment at the stage of bud formation
It is advisable to do two procedures - at the end of April, and then during the formation of buds, so that as many ovaries as possible are formed. But if signs of obvious boron deficiency are detected, spraying is carried out one or two more times until these symptoms disappear.
Conclusion
Boric acid for roses is necessary to stimulate the formation of buds, as well as the appearance of a large number of ovaries. Thanks to feeding (root, foliar), the bush grows faster and becomes more resilient.Therefore, the use of acid also helps for the general health of roses, and also increases their immunity to diseases and pests.
