However, excessive light is detrimental to the development of flower buds.
Today's tip: Although roses enjoy sunlight, here are some related experiences for planting roses that thrive in light. The following is a comprehensive introduction.
Although roses enjoy sunlight, excessive light is detrimental to the development of flower buds.
Although roses are sun-loving plants, excessive light is harmful to the development of flower buds. However, if they grow in insufficient sunlight, the branches become thin and weak. The Nanyang Rose Garden points out that it takes about 45 days from germination to blooming for roses, with an appropriate growth temperature of 15-25°C. Within this temperature range, the flowers are large and beautiful. At 30°C, growth slows down, and above 30°C, the flowers become smaller, and the color begins to fade. When planting seedlings that are 2-3 years old, the roots should be pruned to promote new root growth by cutting old roots, but the pruning should not be too severe. During cultivation, attention should be paid to the expansion of the root system and the upright posture of the plant. The potting soil should not be filled to the top, and potting is generally done during the dormant period. Roses grow vigorously and require a lot of fertilizer, changing pots once a year or every other year, also during the dormant period. After repotting, the plants should be watered thoroughly twice. In spring, summer, and autumn, they should be placed in a well-lit, well-ventilated, and non-waterlogged area.
After Qingming, the Nanyang roses are pruned for the first time carefully. The strong branches of the roses are selected and retained, while the horizontal, weak, intersecting, and dense branches are cut off. The selected branches should retain 3-5 buds from the base, and the rest of the branches above should be cut off to allow the plant to absorb a large amount of nutrients from the soil, supplying the leaf and flower buds left after pruning for long-term growth. Remember to prune after the buds have sprouted, as delayed pruning will affect the first flowering. The growth height should be uniform, with 3-5 main branches left per plant, and no more than 7 branches.
For potted roses, water only when the soil is dry, and water thoroughly when you do. In the hot summer weather, with a high evaporation rate, potted roses should be watered more, especially a sufficient amount in the evening. When the temperature exceeds 30°C, roses grow poorly and bloom less. Sometimes, excessive fertilization may occur due to a misunderstanding of insufficient fertilizer, which can do more harm than good. In the midsummer season, fertilization is generally not applied, except for thin and frequent fertilization once or twice a week for strong-growing branches. If shading is provided after 11 am and exposure to the sun is resumed after 4 pm, it helps the roses endure the weaker sunlight in the morning and afternoon, which is beneficial for photosynthesis and accumulating nutrients for the next batch of flowers. Fertilization can be applied after pruning, using 50% human manure mixed with 2% superphosphate. In mid-February, top-dressing can be applied with 3% human manure or 1% urea. Urea can also be sprinkled before or after rain. Fertilization should not be done when the new shoots turn red, as it can injure the young roots, causing the plant to wilt or stop growing, so special attention is needed.
Mid-season pruning of Nanyang roses is necessary, mainly to remove the suckers from the rootstock of grafted seedlings, cut off the残花 with leaves after flowering, and thin out excess buds. After the first batch of flowers, the weak flowering branches are cut from the base, and the rest of the strong flowering branches are cut just below the残花 leaves. The second batch of flowers can still be pruned by thinning the weak branches and retaining the strong branches and strong buds.
Roses also need to be pruned once before overwintering, but not too early. When pruning roses, not only should strong branches be selected, but also attention should be paid to the uniformity of the main branches. For large-flowered varieties, 4-6 strong branches should be left, with one side of the branches selected for a strong bud at 30-40 cm and the upper part cut off. For vine and藤性 varieties, old, weak, and diseased branches should be removed to cultivate the main stem.
The above is the sharing from the Nanyang Rose Base. For wholesale procurement of Nanyang roses, look for us!
The above is a comprehensive introduction to the fact that although roses enjoy sunlight, excessive light is harmful to the development of flower buds, hoping to provide green plant enthusiasts with some knowledge about green plants.