Can raspberries be planted in winter? They are generally planted in spring and summer each year
SummaryRaspberries cannot be planted in winter. Raspberries are generally planted in spring and autumn, and spring planting is especially the most suitable. Raspberries are perennial small shrubs with fragrant, rich fruit, abundant nutrition and good taste. Raspberries also contain abundant amino acids, vitamin C, and zinc, iron, magnesium and other vitamins essential to the human body, and are a fruit that people greatly enjoy.
Raspberries are generally planted in spring and autumn each year, but spring planting is the main method. Spring planting is done after the soil thaws and before the seedlings sprout, but note that spring planting cannot be too early. If it is too early, the soil temperature is low, which will have a certain effect on root growth and affect the survival rate of raspberry planting. Generally, when the temperature is stable above 10°C, it is the best period for spring planting of raspberries. The advantage of autumn planting is that it is done from when the seedlings are fully mature until before the soil freezes. During this period, early planting is preferable, because at this time the seedlings lose less water and are more likely to survive, sprout early the following spring, and grow quickly.
1. How to plant raspberry seedlings
1. Choose a flowerpot with a diameter of about 30 cm. The height is recommended to be about 30 cm. Air holes must be left in the bottom of the pot, and the number of air holes should be as many as possible.
2. After preparing the flowerpot, begin preparing the nutrient substrate for planting raspberries. Add fermented cow manure and vermiculite to fibrous peat, mix evenly in a ratio of 2:1:1, then place it in the flowerpot, and raspberry container planting can begin.
3. First remove the nutrient cup from the raspberry seedling, then plant the raspberry seedling into the prepared flowerpot. It is enough to bury the raspberry about 2 cm deeper than the nutrient cup. After planting, properly prune the excess leaves of the raspberry.
4. Water to ensure nutrient accumulation in the raspberry branches and achieve the goal of earlier flowering and fruiting. Generally, after planting is completed, raspberries will bloom around June, and the fruit will begin to ripen in mid-July. The fruiting period of raspberries is long and can last until mid-to-late September.
2. Raspberry planting techniques
1. Selection of the site
Raspberries have low soil requirements and can generally grow in ordinary soil, but they grow better in fertile soil. Raspberries should be planted in spring and autumn, when the survival rate will increase.
2. Cultivation method
After the land is determined, dig the planting trenches and holes for raspberries at equal intervals in straight lines with a row spacing of 2 m and a plant spacing of 30 cm, and with length, width and depth of about 15 cm. Before planting raspberries, soak the seedlings in water for about 4 hours, then begin cultivation. About 1,100 seedlings can be planted per mu.
Cultivation method: Spread the roots of the raspberry seedlings into the pit, then tread the soil down, planting deep and covering shallow. Planting standard: the roots and surrounding soil should not cover more than the original water mark of the seedlings in the garden. Where conditions permit, no watering or film covering is needed after planting, which can greatly ensure the survival rate.
3. Management after planting
After raspberry seedlings are established, the underground rhizome is the main focus. The aboveground part is not as important as with other fruits. Therefore, when planting raspberry seedlings, only about 20 cm of the ground part needs to be cut to increase the survival rate. After planting and before sprouting, soil-sealing herbicide can be used to prevent large areas of grass from growing. During the growth of raspberries, in particularly dry areas, loosen the soil after watering, then use “paraquat” to remove weeds, which not only saves labor but also saves energy.
4. Branch tying
Set up supports for raspberries. The supports can be made of bamboo or built with cement, determined according to one's own conditions. Using supports allows raspberry branches to be distributed more evenly, improves ventilation and light transmission conditions, and the supports can also allow raspberries to bear higher yields. Fresh fruit can also be protected from ground contamination, and it is more convenient for later fertilization and harvest management of raspberries.
5. Pruning and harvesting
The Diguohong raspberry variety generally can bear fruit in the same year it is planted, and the fruit can be harvested in July in summer. After fruiting, the mother canes need to be cut off from their base, retaining about 4 robust basal canes per clump that grew in the current year, and then cutting off the weak basal canes, to facilitate later fruit harvesting.
Diguohong raspberries can alternately bear fruit for decades after one planting, and the life cycle of a single plant can reach up to about 20 years. The fruit ripening period of raspberries is not uniform, so they can be harvested and processed in batches. After the fruit ripens, it can generally be harvested once about every 2 days. Harvest once when there is no rain or dew. Generally, raspberries harvested in the morning taste fresher and more delicious.
6. Overwintering and cold protection
If raspberries are planted in cold northern regions, the branches of biennial varieties must be buried in soil in winter to resist the cold, so as to prevent conditions such as freezing of flower buds and branches. When burying before the soil freezes, press the selected branches down and tie them in one direction, then seal them with soil. After the spring thaw the following year, remove the protective soil and place the branches on the supports so that the raspberries can grow normally.