Roses keep blooming smaller and smaller? These are the reasons
Roses are not only rich in varieties with a long blooming period, but their flowers are also very beautiful, so many gardening enthusiasts like to grow roses. However, many enthusiasts report that the roses they grow bloom smaller and smaller. Here, Science Xingnong will share with everyone how to deal with roses blooming small.
1. Reasons why rose buds become smaller and measures to take
(1) Temperature too high. Roses prefer a growing temperature of around 20°C. Exceeding 35°C will continuously affect the growth of roses, especially affecting the flower bud differentiation of roses. At this time, the roses bloom very small, and the flower color is not as good as when the temperature is suitable.
What to do at this time is to cool the roses down promptly. You can move the roses to a cooler environment and prune the roses, cutting off the buds with poor appearance to reduce nutrient loss.
(2) Lack of nutrients. Roses have a long blooming period and need relatively more nutrients, so sufficient base fertilizer should be applied before planting, and attention should be paid to timely topdressing according to the growth of the roses. Once nutrition cannot keep up, it is easy to cause the roses to become smaller.
For base fertilizer, you can choose some slow-release organic fertilizers such as fermented chicken manure and cake fertilizer. During the growing period of roses, apply diluted organic fertilizer about once every ten days. Before the blooming period of roses, apply some 0.1% potassium dihydrogen phosphate solution, generally once every two weeks.
(3) Improper pruning. Roses should be pruned promptly after each bloom, otherwise new branches will not grow easily, which will result in roses growing from old branches. Such roses are very small and of poor appearance.
Usually, roses should be pruned promptly, and spent roses should be cut off promptly to avoid nutrient loss, generally cutting about 15 cm. In addition, pay attention to pruning roses in early spring, cutting off diseased branches and old branches, generally leaving about 4 bud eyes on the main branches. This is beneficial for the growth of new branches and buds.
(4) Improper flower thinning. Roses have a great many buds. If you want large blooms, you should promptly remove some small buds on the side branches, otherwise the nutrient supply will be insufficient, and it is very easy to cause all the flowers to bloom poorly. So usually you can remove all the buds growing from the side buds of the roses, leaving only the buds on the main branches. In this way, all the nutrients are supplied to the main branch buds, and the roses will naturally become larger.
2. Habits of roses
The last thing to tell everyone is that before planting roses, you must understand the habits of roses well, so that you can grow roses well. Roses like fertile, loose, slightly acidic soil and need a growing environment with sufficient light, good ventilation, and a temperature of around 20°C.