How to propagate blackcurrant?
Humanity has known about the benefits of blackcurrant for a very long time, therefore every self-respecting summer resident grows it on his site. Anyone who is not accustomed to often buying seedlings in the markets can get young currant plants on their own. To properly propagate this plant, you need to know all the basic nuances of this procedure.
Ways
Blackcurrant is an unpretentious plant, therefore it will not be difficult for both an experienced summer resident and an amateur to grow it in the garden. Many novice gardeners prefer to plant new bushes instead of looking at what is already on the site, left over from the old owners. There are certain advantages to not uprooting what is already there, but to learn about the variety that has been growing on the site for some time. On the other hand, if the bushes are already too old, then they need to either be rejuvenated or completely replaced with new ones.
For the propagation of blackcurrant, you can use various options that everyone can do. Since buying seedlings on the market is a costly business, most try to bypass this option and start cultivating the plant on their own. Vegetative propagation is best suited for currants.
You can use the most popular options:
- layering;
- cuttings;
- division of the bush.
Each of them has its own advantages and disadvantages.So, when using layering, all plants take root, and in the case of cuttings, the survival rate is slightly lower and is about 90. Despite such statistics, currants can be propagated by cuttings quite successfully, because both dry and green seedlings can be used in the work.
With the help of a cutting, it is possible to update the varietal composition, while not resorting to plant transplantation. In addition, this option makes it possible to prepare a large amount of planting material, which can be partially buried, and partly germinated at home. Planting with green seedlings will be more effective in spring, and dry seedlings in autumn, before wintering.
Growing a bush using any of the above methods will not be a difficult task, but it is important to know the features of each of them. If the first option involves pruning ready-made branches for blanks, then the second and third suggest the possibility of planting one large adult bush using layering or dividing the plant.
cuttings
The process of propagation of blackcurrant can be carried out using green and lignified cuttings. The green variety is those blanks that are made from fresh twigs that have grown this year. Lignified, on the other hand, are those cuttings that are taken from branches that have matured well since the fall of this year or since the spring of the past.
To choose the right option for planting and propagation, you need to know about the advantages and disadvantages of each type of cuttings.
- Greens. Their advantages include minimal costs to create optimal conditions for storage and the possibility of fruiting a year after planting the cuttings.Of the shortcomings, it is worth noting a significant outflow of moisture through the unripened bark, which forces the creation of certain conditions to maintain optimal humidity.
- Woody. Their advantages include the possibility of trimming the bush at any time while it is at rest. The ripened bark makes it possible to keep the cutting well, retaining moisture in it and nourishing it. It is possible to weed out weak seedlings before they are planted in the ground. Of the minuses, it is possible to single out the need to create conditions for storage, where there will be the necessary indicators of temperature and humidity, in addition, it is important to provide protection against the penetration of mold and rotting of the handle.
Thus, it is quite convenient to use cuttings for propagating black currant, and most importantly, you can be completely sure of a positive outcome if the planting material is properly collected, stored and planted in the right place in a timely manner.
layering
There is another option for the propagation of blackcurrant, which involves the use of layering, which can be horizontal and vertical.
To propagate currants using horizontal layering, it is necessary to use bushes from 3 to 5 years of age, under which in the spring you need to loosen the soil and apply fertilizer, and then dig several furrows from them in different directions. One- or two-year-old branches will be placed in them, which must be well attached to the ground with staples.
In order for the layering to give growth faster, it is necessary to cut the tip of the branch. This will stimulate the lateral buds and they will grow.As soon as the kidney greatly increases in size and the young sprout begins its way up, you need to lightly sprinkle it with soil and wait until vertical shoots begin to appear. Upon reaching 10-15 cm in height, the layers are covered with soil. It is important that it is well hydrated and has a loose consistency. A few weeks later, everything needs to be repeated again.
All summer, layering requires special care, which consists in loosening the soil and abundant watering. In addition, in order to germinate strong sprouts, it is important to feed them, for which peat, compost or other organic fertilizers are used. With the onset of autumn, all layers are cut and revised. Those that have grown and developed well can be planted in open ground, poorly developed sprouts are placed in a nursery to bring them to the desired condition and land in the next season.
Depending on the age of the currant bush, you can get a different number of layering, because for young plants of three years of age it is recommended to lay one branch in the ground, for older six-year-olds, no more than three branches can be used.
This option allows you to get the required number of layers, while not weakening the main bush.
If there is a need to obtain one new bush, then you can apply a different method by digging a hole near the main plant and putting a branch into it, bending it in an arc and bringing the end out. For a year, this branch takes root, after which it separates from the main bush and develops on its own. Such young bushes are larger than those that are planted from cuttings. In addition, they already have their own developed root system.
If we talk about the process of propagation of blackcurrant by vertical layering, then for this it is necessary to use root growth, but it is important that it be young. It is added dropwise with earth at the moment when the branches grow to a height of about 30 cm. A feature of the procedure is the growth point, which should remain on the surface after the branch is covered with soil. A new layer will be formed from this area, which will also need to be mulched with a growth of about 15 cm. Outwardly, it looks like a mound near the main bush, from which young branches grow.
With all the advantages, this option has one significant disadvantage - this is the erosion of the soil by rain, which forces repeated digging of layering. To save yourself from such inconvenience, you can use a bucket without a bottom or a similar structure into which the earth will be filled. If the process was carried out correctly, then by October the young plants will be ready to separate from the main bush.
If the currant from which the layers were formed is very old, then it is completely dug up, and new seedlings are planted on the site. With a younger bush, you can separate the layering, leaving small stumps, from which you can once again get new young shoots in the new season. Each of the described options has its own advantages, because gardeners themselves choose the method of reproduction for themselves and use it as needed.
By dividing the bush
Using the method of dividing a hive is appropriate when you need to move the entire hive to a new location. When the bush is completely dug out, it is divided into parts.Those young branches that have a good root system are planted as full-fledged shrubs, while the old parts are thrown away, and poorly developed ones can be left in the form of cuttings and grown until spring at home.
This procedure is usually carried out either in the fall, when all the leaves have already fallen, or in the spring, before the plant wakes up. It is important to divide the bush carefully so as not to damage the roots, otherwise a healthy and strong bush may die or get sick. For planting young plants, you need to choose the right place, prepare the soil and provide proper care.
Procurement of planting material
The process of harvesting cuttings differs not only in the type of shoot, but also in the time of the procedure itself. If there is a need for planting currants with green parts of the bush, then it is worth doing this procedure in the summer, when the plant is actively growing and developing and will be able to take root and give new shoots. This work is characterized by the use of planting material immediately after digging.
If a lignified cutting is used for planting, then it is collected in the fall, and planted in the ground in the spring, after a series of measures to prepare the planting event. It is important to be able to properly cut the bush, choosing young branches for breeding, which are at least one year old. The selection is carried out according to the criterion of survival of seedlings, therefore weak and thin branches are immediately discarded, not considered as cuttings for breeding a particular variety.
Summer harvest is as follows.
- Correctly selected weather conditions and time for work. This is early morning, when dew is still on the plants, or cloudy weather, when you can cut branches throughout the day.
- It is necessary to choose a branch that is at least a year old, where the lower part begins to become lignified, and the upper one is still young.
- Pruning is done using a secateurs, which must be disinfected by dousing with hot water and wiping with a clean cloth, after which you can start cutting the shoots.
- On the selected branch, you need to find in the middle part a place where three buds will be located nearby, near which a cut will be made. At the bottom, you need to cut the branch evenly, retreating no more than half a centimeter from the kidney, and make a diagonal cut from above, towards the kidney, near it.
- The foliage from the two lower buds should be removed, as well as the petioles themselves. At the upper bud, the leaves are cut in half, which helps to avoid evaporation of moisture.
The resulting seedling is planted immediately in the ground, in extreme cases, they withstand it for a couple of days, protecting it from the sun and wind.
Green cuttings are not subject to long-term storage, unlike lignified ones.
Storage
You can prepare planting material that will be stored from autumn until spring. The cuttings are either planted in the area, placed in the substrate, or placed at home with suitable temperature and humidity. It is important to take all the necessary measures to keep the cutting until the very spring, for which each cut after trimming is dipped in pre-melted paraffin. This makes it possible to retain moisture. After that, all planting material is wrapped in polyethylene and placed in a place with a low temperature.
For proper storage, it is important to periodically unfold the cuttings and look at their condition, selecting those that show signs of disease or fungal infection.If you follow all the recommendations, all cuttings should last until spring, but in case of temperature or humidity deviations from the norm or jumps in these indicators, undesirable phenomena may occur that adversely affect the planting material.
If you carry out spring cuttings, then it can be combined with pruning the bush itself. It’s easier to understand which branches are not needed due to the old age of the bush or illness, which grow unevenly and spoil the bush, and those from which it is worth growing new plants. For work, young shoots are used that have been growing on a bush for two or three years and have already become woody. In order for the future plant to be strong and grow quickly, it is important to choose branches with a thickness of more than 5 millimeters.
Branch pruning is carried out by analogy with cuttings of green seedlings in the summer. You need to cut out the middle part, leaving three buds on the vine, cutting it evenly at the bottom, just below the bud, and diagonally from above, a little higher from it. Before planting a seedling in the soil, it is important to allow the plant to take root so that it takes root in a new place. Petioles harvested in autumn are usually stored until spring, without being planted in the ground, in order to protect them from cold weather and germinate with the onset of warm weather.
Rooting seedlings in the substrate
After storing all winter, it is important to prepare planting material for planting. Dry cuttings will not give the desired result, some will not take root and die, and the rest will develop for a long time until they settle in a new place. To help this process, it is necessary to use a special substrate with the advent of spring, which accelerates the pace of seedling development.
This process will consist of such activities.
- Selection of containers for each cutting that was stored during the winter.The dimensions of such containers should not be too large. It is optimal to use half-liter plastic glasses.
- The first layer, which is placed on the bottom, should be drainage, for which you can use vermiculite or perlite.
- Next, the container is filled with soil, in which the currants will be located until they land on the site. To create optimal living conditions, it is worth using earth, sand and peat in the same parts.
- The cutting is immersed in the ground so that it contains the two lower buds. It is important to press down the soil from above so that there are no empty spaces in it.
In order for the planted petioles to begin to take root faster, it is important to place them in a place where there will be the most comfortable conditions for this. The heat that is in the living room is enough for the plants, but there is no humidity, therefore it is necessary to spray all the cuttings at least twice a day.
If, in the process of growing currants, flowers or even an ovary begin to appear on it, it is better to get rid of them immediately so as not to waste the strength of a young plant on the wrong tasks. In time, unharvested inflorescences will not allow the root system to fully develop, which will result in a weakened plant.
As soon as spring comes and all frosts pass, those seedlings that have given roots can be planted in open ground.
In this matter, it is important to take care in advance of the place where the young bush will be placed, prepare the pit and the soil with which it will be covered, so that the currant receives all the necessary substances after planting.
In order to ensure the desired result and get a healthy bush that will take root in a new place in a short time and begin active growth, and then fruiting, it is important to choose the right mother bush. If it is weak and low-yielding, then there is no point in cultivating it, in this case only grafting can help.
Properly selected, pruned and stored during the winter under optimal conditions, seedlings must be properly prepared for spring, for which growth stimulants are used. The most popular is "Heteroauxin", in which you need to keep planting material for at least a day. As soon as the currant is ready for transplanting, it is worth taking care of the place for its landing and the soil with which it will be covered. It should contain, in addition to the earth, also part of the compost and sand. It is good to use sawdust so that the earth does not dry out so much and passes moisture more easily.
When the bushes are already planted in the ground, you need to carefully look after them for a month, watering often and well. It is worth calculating the frequency with which the bushes will be planted from each other. If the variety forms a wide spreading crown, then it is worth providing a sufficient distance from one bush to another. The same options that grow up can be planted closer to one another.
One of the important components of caring for seedlings that were grown from cuttings and placed in open ground is their systematic fertilization. It is considered optimal to hold such events 3 to 4 times a season.
The use of organic fertilizers is recommended:
- manure;
- bird droppings.
In addition, complex preparations are well suited:
- "Fertika Lux";
- Hello turbo.
Carrying out all the procedures correctly, you can quickly enough increase the number of currant bushes in the garden several times, while not resorting to buying seedlings and knowing exactly which variety will turn out in the end.
For information on how to propagate blackcurrant by cuttings, see the following video.