Rose Planting Techniques: Our Editors Teach You How to Grow Roses Step by Step

Growing Techniques Jan 1, 1970 0 views

Planting a garden full of roses at home will surely make the garden romantic and sweet. Do you also want to fill your beloved home with roses? Today our editors bring you rose planting techniques, teaching you how to grow roses step by step.

Rose Planting Techniques

Soil Selection

Choose a site with a low groundwater table. The soil should ideally be loose, fertile, well-drained, rich in organic matter, deep, and neutral to slightly acidic, with an effective cultivation layer of 80-100 cm and a pH of 5.5-6.5. The soil must be chosen well so that the roses that bloom will be even more delicate and lovely.

Rose Planting Techniques

Fertilizing and Watering

Roses love fertilizer. After a potted rose has settled in, apply fully rotted organic liquid fertilizer once every 10 days, and during the bud formation stage apply some liquid fertilizer containing phosphorus and potassium. Watering should be done according to the weather; in hot summers water every day, and at other times water thoroughly whenever the potting soil looks dry. Remember to promptly remove spent flowers after blooming.

Rose Planting Techniques

Cultivation and Management Techniques

1. Variety Selection

According to local climate conditions and market demand, choose varieties that tolerate heat in summer and autumn and low temperatures in winter and spring, and that are disease-resistant and high-yielding, and reasonably arrange the proportions of flower shapes and colors. The choice of rose varieties is very important.

2. Preparation Before Planting

Soil improvement: For slightly alkaline soil, apply fully rotted barnyard manure, compost, medicinal residue, rice husks, sawdust and other materials combined with deep plowing to improve the soil; for slightly acidic soil, wood ash, lime, etc. can be used to neutralize and improve the soil; the improved soil layer should be more than 40 cm deep. Land preparation: make ridges 1.3 m apart, with a bed surface width of 60 cm, a bed height of 30-40 cm, and a furrow width of 40 cm-50 cm, and the bed surface should be level.

Applying base fertilizer: Apply 3000 kg of fully rotted organic fertilizer, 50 kg of superphosphate, and 50 kg of compound fertilizer per mu. Soil disinfection: Evenly spray 400 ml-500 ml of a 50-fold dilution of 40% formalin, cover with plastic film, keep sealed for 2 days-3 days, then uncover the plastic film and use after ventilating for 2 weeks; or scatter lime powder at a dose of 30 mg/sq m-40 mg/sq m and mix thoroughly.

Seedling selection: Use grafted seedlings or cutting seedlings that are robust and free of pathogens and pests. Cutting seedlings should be replaced after 2 years-3 years, and grafted seedlings after 4 years-5 years. Planting: Plant 2 rows per bed, with a plant spacing of 15 cm-25 cm and a row spacing of 40 cm. When planting, spread the root system out in all directions, and the graft union should be 1 cm-2 cm above the surface soil. Planting time: It is best to plant in March-April; after planting, flowering generally begins in 6 months.

Rose Planting Techniques

Management After Planting

Summer management: Prevent heat and lower temperature, ventilate to remove moisture, promptly prevent drought and drain waterlogging, apply light fertilizer frequently, strengthen pest and disease control, prune and manage according to the non-flowering period, and protect branches and leaves. Autumn management: Strengthen fertilizer and water management to promote plant growth, switch to pruning management for the flowering period, and promote the sprouting of flower branches. Winter management: Close the greenhouse to keep it warm and humid so as to increase the yield and quality of cut roses; at the same time, pay attention to weather changes and ventilate in time.

Cultivation environment monitoring: Select 3-5 representative points in the greenhouse to place thermohygrometers, and record temperature, humidity and light intensity at fixed times every day as the basis for regulating light intensity, temperature and humidity. Light intensity regulation: Light should be sufficient, and the light intensity should preferably be 25000 lux-50000 lux.

Temperature and humidity regulation: The most suitable growing temperature is 24°C-26°C during the day and 14°C-16°C at night. When the temperature inside the greenhouse is higher than 28°C, cooling measures such as ventilation and shading should be taken in time; in winter, cold protection measures should be implemented according to weather conditions. The most suitable relative air humidity for growth is 50%-80%.

Water management: Roses are a crop that needs plenty of water and fertilizer. Use clean water sources for irrigation, and water thoroughly at planting to settle the roots. For the first three days after planting, spray-irrigate once a day at 1-2 o'clock noon for 4-5 minutes each time to increase air humidity; after planting, keep the soil moist. Water once every 4 days-6 days in winter and once every 2 days-3 days in summer.

Nutrition management: During the stem and leaf growth period, appropriately add nitrogen fertilizer, and when entering the flowering period, add phosphorus and potassium fertilizer. The ratio of nitrogen, phosphorus and potassium should be 3:1:1 during the growth period and 1:1:1 during the harvest period. Appropriately supplement trace elements, or apply more organic fertilizer with comprehensive nutrients. Apply quick-acting chemical fertilizer once every 10 days-15 days and slow-release organic fertilizer once every 1.5 months-2 months, applying a moderate and balanced amount combined with irrigation. Foliar fertilization has a good supplementary effect; during the flowering period, spray a 0.2%-0.4% potassium dihydrogen phosphate solution on the leaves.

Rose Planting Techniques

Pruning Roses

Pruning method: For pruning done on branches, the cut should be flat, the cut should be above a node, the upper edge of the cut surface should be about 0.2 cm higher than the axillary bud, and the lower edge of the cut surface should be above the base of the bud, preferably at a distance of 0.5 cm-3 cm from the base of the bud.

Pruning during the non-flowering period: At any time, remove dead branches, diseased and pest-infested branches, rootstock branches, crossing and densely growing branches, blind shoots, spent flowers, side buds and so on. If the plant is in the maintenance period between the seedling stage and the flowering period, or if the plant is weak and has severe leaf drop, temporarily retain crossing and densely growing branches and blind shoots to help the plant recover its vigor.

When pruning, keep the cut close to the base of the branch and do not leave a stub. For water sprouts growing from the base, depending on differences among varieties in the sprouting ability of axillary buds, cut them at 0.5 cm-3 cm above a bud 30 cm-50 cm up from the base of the branch and train them as new main branches. Generally, cultivated roses have 4-7 main branches.