How to grow large-flowered roses and points to note
Although the growing methods and points to note for large-flowered roses are fairly comprehensive, they are all easy to understand, so even beginners can easily learn how to grow large-flowered roses after studying them.
Growing methods and points to note for large-flowered roses
Seed selection: Choose varieties that are cold-resistant, highly stress-resistant, resistant to pests and diseases, vigorous in growth, with stiff flower stems, abundant bloom, early flowering, large and brightly colored flowers, good flower form, and a long single-flower period, and that are popular in the market. Varieties with tightly spaced leaves, a short and sturdy plant shape, and shorter, stiffer flower stems are better and more suitable for pot cultivation. In addition, new varieties should be introduced every year to replenish the population and eliminate poorer old varieties. For commercial growing, there is no need to have too many varieties; around one hundred main varieties is enough, while other distinctive and rare varieties favored by experienced growers can be collected as appropriate.
Planting: The spacing between plants and rows for large-flowered rose cultivation varies depending on the purpose of cultivation. For variety nurseries used for breeding or scientific research, the commonly used spacing is 150 cm x 80 cm. Before planting, the seedlings need to be pruned once, cutting off damaged branches, diseased branches, and weak branches, and damaged or overly long roots should also be cut off. After pruning, apply a wound-healing and antiseptic film to the wounds so they heal quickly.
Environment: Large-flowered roses are light-loving plants. During cultivation, choose a sunny location and avoid planting them beside tall buildings, under tree shade, or on the shady side of hillsides. The ideal soil for cultivating large-flowered roses should have good granular structure and be rich in organic matter.
Watering: After the Beginning of Spring, to prevent young leaves from wilting, you can probe the pot rim with your finger; when the sand is dry to a depth of one horizontal finger, it is time to water. Spray with a watering can and water thoroughly in two passes. It is best to keep a record after each watering and also note the estimated date of the next watering. After a few times, you can roughly identify the pattern. In short, do not let it dry out, do not let the roots become waterlogged, and do not let it grow leggy.
Fertilizing: The fertilizer requirement is not large. Since base fertilizer was already applied when preparing the soil, there is no need to fertilize the soil again before transplanting the grown seedlings, but foliar feeding is needed. That is, one month after cutting, apply foliar fertilizer once every half month, alternating 0.3% urea liquid fertilizer and 0.2% monopotassium phosphate liquid fertilizer, to promote rooting.
Temperature control: A plastic shed can regulate the temperature and humidity of the soil and air, and a shade net can prevent direct sunlight and lower the temperature. The optimal temperature for large-flowered roses to root is 20°C to 25°C. When the temperature is too high, in addition to covering with a shade net, you can also water to cool down and ventilate to cool down.
Overwintering: During the long winter of more than 5 months, to ensure the small seedlings "sleep" safely and comfortably, special care is required. After Cold Dew, before the cold wave arrives, move the small seedlings into the greenhouse and ensure they get at least 4 hours of sunlight each day. After that, the management is watering and temperature control. The daytime temperature should be 3-4°C, and it is best not to exceed 5°C, otherwise ventilate promptly to cool down; the nighttime minimum is -4°C.
Other varieties of rose flowers
Miniature rose: Among rose flowers there are large-flowered roses, and of course there are also miniature roses. Miniature rose plants are short and much branched, generally no more than 25 cm tall, with small and narrow leaves and smaller flowers, about 3 cm in diameter, rose red, double or single. This kind of miniature rose is suitable for potted bonsai.
Color-changing rose: A rose that changes color - the name alone sounds quite appealing. The so-called color-changing rose does not mean the rose itself automatically changes color. Its color change occurs because, during the flowering process, the acidity and alkalinity absorbed by the corolla are inconsistent, resulting in a color-changing effect when the flowers bloom at different times.
Climbing rose: Climbing roses have very strong resistance, and the vines develop extremely quickly with vigorous growth. One climbing rose plant can produce 7-8 main branches in a year, and each main branch can branch further. It is disease-resistant. Climbing roses bloom continuously through the four seasons, with brilliant colors, a delicate fragrance, and a long flowering period. They can be used for landscapes such as flower balls, flower pillars, flower walls, flower seas, arch shapes, and corridor shapes.
Ground-cover rose: The growth form of ground-cover roses is different from that of ordinary roses. Ground-cover roses grow in a creeping, spreading state, with a very strong tillering rate. Each plant can produce more than 50 branches in a year, and each branch can bloom 500-100 flowers. It is also a plant tolerant of cold and high temperatures.
No matter which variety of rose it is, they all have high ornamental value, and the large-flowered rose is undoubtedly outstanding among them. If you want to use some flowers to spice up your life, then the large-flowered rose will be a good choice.