The main feature of the repair raspberry is its abundant harvest, which, with proper care, can be harvested twice a year. Care, processing and preparation for the winter of this variety raspberries is very different from many summer variety.
This article will look at how the preparation of a remontrant raspberry for winter is carried out. You will learn what and when to fertilize raspberries, how to properly water and mulch bushes before autumn, and whether you need to prune and cover raspberries for the winter.
Soil preparation in the fall
The preparation of a repair raspberry for winter begins with the ground. It should be saturated with healthy substances, protected from the cold and be sufficiently moist. In this case, in the future season it is worth waiting for a big harvest of raspberries.
In the summer, manure is used as a soil fertilizer, but it must be stopped to apply to the soil in mid-June. In the last week of July, mulching raspberry bushes. In order for the stem to be better strengthened in the last days of August, it is necessary to apply phosphate and potash fertilizers to the ground. As a rule, for fertilizing remontant raspberries use:
- Monopotassium phosphate and potassium magnesia, which increase the frost resistance of raspberries. At the same time it is important to pay attention to the quality of fertilizers, otherwise there is no point in making them.
- Superphosphate is considered the main phosphate fertilizer.
- So that the roots of raspberries are not affected by diseases and pests in the autumn months, iron sulfate is also introduced into the ground.
The last time they feed up the planting of the raspberry in the last week of October. In this case, on the ground you need to scatter a little organic. Thus, over the next 4-5 months, fertilizers will decompose, so that in the spring the remontant raspberry will receive the full range of nutrients.
Watering and mulching
The repair raspberry needs watering before hibernation. So, the last watering should be done about two weeks before the first frost. This event is especially important to hold if a dry autumn has stood out.
Some gardeners water the raspberry after the appearance of the first icy crust. They pour in every bush with 2-3 buckets of water. This is done so that the roots do not dry out during the winter.
After the last watering of raspberries, mulch the soil. Peat, spruce, fallen leaves or sawdust can be used as mulch. It is important to create a non-acidic and non-alkaline environment. Mulch should be laid layers of about 5 - 6 cm. If the roots of the raspberry bushes are replenished more, the stems can dry up, resulting in an ideal breeding ground for bacteria and infections.
There is a lot of controversy about when to trim pruning raspberry is best. Some gardeners are confident that this should be done directly in front of the frost, explaining that at this time the movement of the juice along the raspberry stalks stops, and the plant will more easily endure pruning. Others say that unwanted shoots should be removed immediately after the fruiting period. So, the rhizome of remontant raspberry will get more strength for development.
There is a third opinion. Most gardeners and gardeners agree that pruning raspberries is best done in early September, not later than early October. This opinion is based on the fact that during this period there is still a lot of juice in the raspberry stalks, but its circulation has significantly decreased after the summer.
Methods for pruning raspberry stalks
First, the stems should be checked to determine which shoots are pruned. Among them are fragile, old, sick, weak and damaged, as well as those who have not had fruit for the last 2 years. They need to be completely removed.
Tip! Too thick raspberries need to thin out, it will have to remove and strong healthy shoots. On each bush enough to leave 10 stems.
To raspberries did not spread throughout the entire territory of your garden, you need to trim the roots. A bayonet spade is stuck around each bush at a distance of 30 cm, which will cut off the ends of the root system. If you need to update the raspberry, then remove the perennial stem from the center of the bush, which will contribute to the rapid development of new shoots.
Some gardeners use the method of double pruning. So, you can improve the quality of the harvest, because all the nutrients will be directed to the berries. To do this, in addition to removing the old stalks of raspberries, you need to pinch the young shoots. Thus, the affiliated younger group of kidneys is formed. However, it is important to avoid thickening raspberries. To do this, leave 30 cm between the stems. In the spring, the shortening of the shoots is repeated, pruning them to a well-developed bud.
Cut the stems of the repair raspberry should be burned. This is done to protect the raspberry from insects and pathogenic bacteria that can harm the site. After that, the bushes should be digged and removed all weeds. Otherwise, they will take away such valuable nutrients from raspberry bushes, because of which they will become more vulnerable and may not survive the frost.
How to correctly bend down
Although raspberries are frost-resistant, yet severe frosts can destroy it. Given this fact, some gardeners resort to bending the bushes to the ground. The best covering material for all types of bushes and trees is snow. Due to the bending in, the raspberry bushes will be completely hidden under a layer of snow, as a result of which they will be able to survive even the most severe frosts.
If you have a repair raspberry grows smoothly on the trellis, then you should bend down the bushes one upon another, while fixing the escape to the bottom of the next bush with wire. Since frosts make the stems more brittle, you should bend down at a temperature above zero, just before the first frosty days.Tip! Before bending down the stems of the repair raspberry, you need to clear them from the leaves, otherwise they will get wet and rot. This can lead to burns of young kidneys. To clear the leaves of raspberry can be, wearing a household glove, sweeping the stem with a hand from the bottom up. This approach will allow you to keep the flower buds intact.
After the onset of heat, the raspberry bushes need to be carefully released. They straighten themselves. If over time in the spring it is found that some branches have broken down or have not survived, they will need to be removed.
It is also worth considering another fact. If you collect remontant raspberries twice a year, then autumn berries will be small and rather dry, because during the summer the bush is very depleted. Therefore, some gardeners plant a regular and remontant raspberry variety on their plots and harvest twice a year. In the summer - from the summer variety and in the autumn - from the repairman.
In very windy and snowy regions it is not enough to simply bend down, but skilled gardeners have learned to get out of this situation.
Installation of frost protection systems
If your raspberry grows in an open field and snow is blown away from the bushes, then you can think of a snow retention system. Its essence is to install the barrier on the windward side. To do this, you can dig sheets of plywood or polycarbonate in the ground. If we talk about durability, it is better to give preference to polycarbonate, since it is not afraid of frost and is not subject to rotting.
To fix the snow retention system, you can tie it to the trellis if necessary. The design should be set so that it protects the raspberry from the wind, that is, it must be installed from the direction of the preferential wind direction in winter. To properly establish the structure, you can consult on the wind rose. You can find it on the site of the hydrometeorological service of the area.
If the snow blows out even through the snow-holding structure or it drops too little in your area, then raspberry bushes will need to be additionally covered with a non-woven fabric specially designed for this purpose. For example, spunbond or lutrasil.
In this case, you need to bend down the branches of the repair raspberry, tying them to the bottom wire, and put the covering material on top in several layers, which must also be fixed. If you live in a region with a harsh climate, but a small amount of precipitation, then covering material with repair raspberries can be additionally covered with arcuate cellular polycarbonate.
So, with the right care, the remontant raspberry will bring your family a rich harvest of delicious and rich in vitamins berries. Follow the recommendations in this article, and you will succeed.
You can get additional information from the video about the peculiarities of cultivation and winterizing of remontant raspberry varieties: