How should potted roses be cared for and managed in winter to survive the cold safely?

Winter is coming, and many flower lovers move their potted roses indoors to overwinter. Before bringing them in, for one-year-old small seedlings, if the new shoots are 30 cm or taller, cut off 2/3; if less than 30 cm, cut off 1/2; if too small, do not prune. For large plants over two years old, cut back strong ones by 1/2 and weaker ones by 2/3, keeping three or four strong main branches so that nutrients are concentrated.

After pruning potted roses, apply "Hushu Jiangjun" (Tree Guardian) to the wounds to prevent pathogens from infecting through the cuts. Move them indoors before the potting soil freezes solid. During winter storage, withhold fertilizer and control water, prevent wind drying, and keep the room temperature at around 0°C. If conditions permit, dig a 60 cm deep earthen cellar, water thoroughly 2 days in advance, then place the pots inside; or remove the pots, trim the roots, and take away the outer 1/3 of the soil, then repot with fresh soil in spring, and the plants will grow vigorously. When it is too cold, seal them tightly with soil; when it gradually warms in early spring, open a vent for air circulation to prevent yellow buds from forming.

For warm-room winter growing, prune in the same way as above, and place them outdoors to freeze and go dormant for a period. Move them indoors at the end of November, first placing them in a low-temperature spot to thaw slowly, then move them to a place around 10°C to wait for them to sprout. Then place them in a sunny indoor spot with at least 4 hours of direct light daily and a temperature of around 20°C, water lightly, and loosen the soil. On sunny days at noon, they can be placed outdoors in a wind-sheltered, sunny spot to encourage growth. After the new buds open leaves and develop into branches, water and fertilize moderately. After buds appear, promptly spray "Huaduo Zhuangdiling" to make the buds strong, the petals plump, the flower color vivid, the fragrance rich, and the flowering period longer.

What are the management methods and precautions for potted roses? Home care methods for potted roses

Rose is a common flowering plant of the Rosaceae family. It has extremely high ornamental value and decorative use, and is often used in bonsai, floral arrangements, and bouquets. Therefore, it is deeply loved by many flower lovers. So, do you know the methods and precautions for growing potted roses? Let's learn about them together.

Bud thinning and pruning after the flowering period

Each new branch of a rose can produce flower buds. If all branches are allowed to grow buds and bloom at the same time, nutrients will inevitably be dispersed, the buds will not get enough nutrition, and the flowers will not open very large. Therefore, some buds on some branch tips must be removed, and weak small buds should be removed. If a large-flowered branch tip has several buds at the same time, choose and keep the largest one and pinch off the rest. During full bloom, avoid strong light and place the plant in a half-shaded, half-sunny spot to prolong the flowering time. When the flowers are about to fade and have no ornamental value, cut off the spent flowers early to avoid continuing to consume nutrients. Post-bloom pruning should be done just below the third compound leaf, that is, cut between the 3-leaflet and 5-leaflet leaves. This is because the first bud below this cut is plump, and later this bud will be the first to send out shoots and grow buds, and in about 45 days it can bloom a second time.

If a potted rose plant is large and has many branch tips, you can adopt a control measure of pinching some branch tips and keeping buds on other branch tips. Make the distribution of bud-keeping branch tips and pinched branch tips alternate neatly on the plant, so that the bud-keeping branch tips and pinched branches bloom alternately, one after another.

Reasonable watering

Roses have strong branching ability and can sprout branches and bloom multiple times in a year, so they need a sufficient water supply. The principle for watering potted roses is "water when dry, and water thoroughly when watering." Do not give half-measure watering, that is, the surface of the pot may be wet but the soil in the center of the pot is still dry. Over time, this will inevitably cause the rose to die. Watering is best done on a sunny morning or at dusk after sunset. Never water under the fierce summer sun. Water that has been stored for a few days is best. In summer, temperatures are high, evaporation is great, and the potting soil dries easily, so water once each in the early morning and at dusk every day. During the plum rain season or continuous rainy days, do not let water accumulate in the pot; if there is accumulated water, pour it out immediately.

Timely fertilization

Roses like fertilizer. Thin fertilizer should be applied frequently to support flowering and branch growth, generally once every 7-10 days. Liquid fertilizer should mainly be well-rotted liquid fertilizer from animals, plants, or poultry manure, diluted with clean water at a ratio of 1:[6-10] before application. Chemical fertilizers should be used as little as possible. If you want to use them, dilute at 1:1,000 and water the flowers. Rice-washing water or fish and meat rinse water can also be used directly to water the flowers. Fertilize on sunny days, and loosen the soil first before fertilizing. Wait until the potting soil is slightly dry before applying. After application, spray the leaf surfaces with clean water to avoid residual fertilizer liquid polluting the leaves. The next day after application, water once again to wash away harmful salts from the fertilizer in the pot. From when flower buds appear until just before the buds open, spray 0.1% potassium dihydrogen phosphate on the backs of the leaves and on the buds every 10 days to accelerate bud development.

The above is all the content I have learned about roses today. I hope flower lovers will find it helpful after reading this article. If you want to learn more about roses, please continue to follow Duorou Huapu, and we will provide you with more related knowledge!

Clever winter management of potted roses

Whether the winter management of potted roses is done properly will directly affect their normal growth the following year. Doing a good job in winter management can ensure that the plants grow robustly the next year, with a full plant shape and abundant, vivid flowers. Specifically, the following points should be done well.

Prune according to the plant. Roses should be heavily pruned in winter, and the degree of pruning should depend on the size and growth vigor of the plant. For one-year-old small seedlings, if the new shoots are 30 cm or taller, cut off 2/3; if less than 30 cm, cut off 1/3; if too small, do not prune. For large plants over 2 years old, cut strong ones by 1/2 and weak ones by 2/3. Keep 3-4 strong main branches so that nutrients are concentrated. This method is suitable for potted large-flowered rose varieties. When pruning, be careful to cut off from the base all useless branches, diseased and pest-infested branches, dead branches, overlapping branches, and crossing branches. Generally, it is enough to retain 3-5 healthy buds on the whole rose plant. The cuts should be smooth, avoiding tearing at the upper cut. Generally, prune at 1-1.2 cm above the bud point. Keep the outward-facing buds. The pruned branches should be collected and burned, and combined with spraying some lime sulfur mixture, which helps reduce the occurrence of pests and diseases the following year. For home-grown potted roses, after pruning, clean the pot surface, and you can spray clarified lime water once to achieve the purpose of killing insects and preventing disease.

Protect against cold and overwinter. After potted roses are pruned, fertilizer should be withheld and water controlled in winter, and a room temperature of 0°C is most suitable. In various parts of our country, it is best after the Start of Winter when freezing has occurred to water the potted roses thoroughly with clean water, then place them in a pit dug in the ground and cover them well with soil, or place them in a cool spot on the balcony, cover them well with plastic film, and leave a vent for storage. For home rose care, if conditions permit, dig a 60 cm deep earthen cellar, water thoroughly two days in advance, then place the flower pots in the pit; or remove the pots and take away the outer 1/3 of the soil, then repot with fresh soil in spring. When the weather is too cold, seal them tightly with soil; when it gradually warms in early spring, open a vent for air circulation to prevent yellow buds from forming and affecting normal growth. For those moved indoors, the room temperature should be kept below 5°C to promote dormancy. Throughout the whole winter, little management is needed; just water a little appropriately when the potting soil is relatively dry, to prevent the branches from drying out.

Bury and apply fertilizer. Base fertilizer can be applied in combination with winter repotting. The potting soil can be loose, fertile, well-drained neutral soil. Put some fully rotted crushed bones or animal hoof and nail pieces, or superphosphate and other fertilizers with higher phosphorus content, at the bottom of the pot as base fertilizer; or for potted roses in winter, after removing them from the pot, shake off part of the old soil, cut off the rotten part of the root system, replace with new soil, and at the same time bury an appropriate amount of rotted peanut cake, sesame cake, rapeseed cake, and other cake fertilizers in the middle-lower part of the flower pot as fertilizer for growth after spring begins. After the fertilizer is buried and applied to potted roses, they should be placed at around 0°C to prevent too-high temperatures from causing early sprouting, which would affect plant vigor and flowering the following year.

Cuttings from strong branches. For some rose varieties that root easily, such as Yueyuehong, Elizabeth, Floribunda, miniature roses, etc., after leaf fall in winter, in combination with pruning, select healthy branches that grew well that year, cut a 10-15 cm section, cut the upper end flat and the lower end into a horseshoe shape. Make a seedbed with yellow subsoil, cover it with plastic film, punch holes in the film, and insert the cuttings. The cutting density is 30-40 plants per sq m, and the depth is 5-8 cm. Use bamboo to build small arched frames over the seedbed, and cover the frames with film. As long as the humidity inside the shed reaches above 80%, roots can form in about 2 months. Without treatment with any rooting agent, winter cuttings of roses work better than spring and autumn cuttings, with a survival rate above 97%, and the plants grow robustly and bloom early.

Reasonable flower forcing. When you need roses not to go dormant in winter and to continue blooming, they should be moved into a greenhouse above 10°C before the temperature drops, and they can continue to bloom as usual. Before warm-room winter growing, roses should be placed outdoors to freeze and go dormant for a period. Move them indoors at the end of November, first place them in a low-temperature spot to thaw slowly, then move them to a place around 10°C to wait for them to sprout; then place them in a sunny indoor spot with at least 4 hours of direct light daily and a temperature of around 20°C, water lightly, and loosen the soil. On sunny days at noon, they can be placed outdoors in a wind-sheltered, sunny spot to encourage flowering. After the new buds open leaves and develop into branches, water and fertilize moderately, and before long they will form buds and bloom.