How to grow Chinese roses
Today's sharing: How to grow Chinese rose seedlings and the planting methods and maintenance experience of Chinese rose trees, the following editor will give you a detailed answer
Chinese roses belong to the Rosaceae family, Rosaceae deciduous or evergreen shrubs, or vine-like and climbing vines. Chinese roses are known as the queen of flowers, blooming in all seasons, adaptable, cold and drought resistant, easy to plant, and a kind of ornamental plant loved by people in urban and rural areas.
1. Propagation of Chinese roses
Chinese roses are propagated by methods such as cutting, horizontal layering, aerial layering, division, grafting, and tissue culture. The commonly used methods are cutting and grafting.
Cutting: Cutting propagation is generally carried out in spring or early summer when the temperature is between 15-25°C, and it can also be done in autumn from August to November. Spring cuttings start in mid-to-late April and end in late May, with roots growing in about 25 days, while autumn cuttings start from late August to late October, and root growth is slower than in spring. Cuttings from healthy, disease-free plants 7-15 cm long, retaining the top two leaves and removing the rest. Collect, cut, water, and shade simultaneously. The depth of cutting in early spring, late autumn, and winter is two-fifths of the full length of the cutting. In summer and early autumn, insert one-third. After cutting, shade, and the plant can be transplanted after a month of survival.
Grafting: Generally, wild roses are used as rootstocks, and "T" shaped bud grafting, single bud cutting, cut abdomen grafting, split grafting, close grafting, large bud slice grafting, tongue grafting, or combined grafting can all be used.
2. Planting Time
Transplanting is generally done during the dormant period of Chinese roses in autumn and early spring.
3. Planting Method
Choose pot:瓦 pots are best for planting Chinese roses, while porcelain pots can only be used as outer pots. Generally, one-year-old plants require pots with a diameter of 15-20 cm, two-year-old plants need 20-25 cm, and three-year-old plants require pots larger than 30 cm.
Planting: Try to plant the plant with soil, fill in the prepared culture soil, then move the plant into the pot, arranging the roots and filling the soil while shaking the pot to make the soil adhere to the roots, filling until the soil is slightly higher than the rootstock. The grafting joint should be 2-3 cm above the soil surface. Place the pot in the shade for 10-15 days before moving it to the planned location.
4. Pot Changing
Chinese roses grow rapidly, and if the pot culture is too long, it will affect the growth of the roots and need to be repotted. As the plant grows larger, it also needs to be moved from a small pot to a large pot. Pot-grown Chinese roses must be repotted every year, and for plants over three years old, repotting is no longer necessary, only turning over the pot. Pot changing is generally done before the Chinese roses sprout, not during the flower formation period and full bloom period.
The method of pot changing: Support the center of the pot with one hand, and with the other hand, use two fingers to hold the plant and turn the pot upside down, then tap the pot from bottom to top with the other hand holding the pot, making the soil ball leave the pot wall and come off by itself. If the pot is large, you can lay the pot on its side on the ground and gently tap the edge of the pot or roll and tap it, and when the soil ball is loose, hold the soil ball with one hand and use two fingers to hold the plant and remove it.
4. Management
Watering: Follow the principle of "alternating wet and dry," that is, water thoroughly when the soil is dry, and wait until it is dry before watering again, do not water when it is not dry. Water once a day for both large and small pots, and do not water in the scorching sun. Pay attention to not watering on rainy days and to pour out the water after rain to prevent water accumulation in the pot. To keep the soil in the pot loose and breathable, loosen the pot soil every 10-15 days.
Fertilizing: Fertilize once every 10-15 days, the fertilizer should not be too concentrated, and follow the principle of thin application and frequent application. During the full bloom period, 0.2% phosphorus acid potassium or 0.05% boric acid solution can be used as foliar topdressing. The fertilizing principle for potted flowers is: fertilize in spring and summer, less in autumn and winter. More for large flowers, less or none for small flowers. More for strong plants, less or none for weak plants. More for bud stage, less or none for blooming stage. Fertilize when changing pot soil, do not fertilize for newly planted plants.
Chinese roses are sensitive to temperature, and after entering winter, they should be stored in a low-temperature environment below 10°C for more than 40 days to pass the dormancy period, then placed at 12-16°C for growth, and finally bloom normally under the conditions of 16-25°C. If the daytime temperature can be maintained at 25°C in winter, with a nighttime temperature of 15°C and at least 5 hours of sunlight per day, the flowers can also bloom continuously in winter.
5. Pruning
Leave 10-20 cm at the base of the flowering branch before and after the flowers bloom, and cut off the rest. Timely and reasonable pruning can make the plant compact, bloom concentrated, and the flowers large and bright. During the growth period, remove the inner buds and dense buds to make the branches grow properly and avoid affecting ventilation and light transmission. When the plant has flower buds, only one bud is selected at the tip of the large-flowered Chinese rose branch, and the rest are removed to concentrate the nutrients and make the flowers full. For multi-flowered Chinese roses, remove some buds to make the blooming uniform.
The above introduction on how to grow Chinese rose seedlings and the planting methods and maintenance of Chinese rose trees is provided for your comprehensive understanding and reference!