What should I do if the new buds of the Chinese rose turn black before fully growing out?
The editor answers for netizens the question of what to do if the new buds of the Chinese rose turn black before fully growing out, with the content of green plant and flower planting. The following is an introduction for you.
What should I do if the new buds of the Chinese rose turn black before fully growing out? These three reasons need to be prevented in advance.
In autumn, Chinese roses easily encounter a situation where, after pruning, new buds do not grow or turn black, and some turn black after growing a little bit. Recently, some students in the flower wall construction camp have encountered this situation. If you have encountered it too, follow the ideas and let's find the reasons together.
Analysis of common reasons for new buds not growing or blackening after pruning Chinese roses
Generally, after pruning, Chinese roses quickly produce new buds, grow, and bloom, even in summer. Although Chinese roses may not look good when blooming in summer, they will still normally sprout after pruning. So why do they have difficulty sprouting new buds in autumn? Mainly look for reasons from these three aspects.
1. Fertilizer damage causes internal injury
In summer, due to high temperatures, fertilizing Chinese roses can easily cause black stems, so it is generally controlled in summer, and when autumn comes, after pruning Chinese roses, the amount of fertilizer is usually increased.
However, there is a detail that needs special attention, which is that at the beginning of autumn, the temperature is still relatively high. After pruning Chinese roses, immediately applying some well-fermented organic fertilizer or controlled-release fertilizer to supplement energy is very necessary. At the same time, we also use water-soluble fertilizers or nutrient solutions to promote new buds.
But when using water-soluble fertilizers or nutrient solutions, it is important to control the concentration. When new buds have not yet grown, giving a large amount of fast-acting fertilizer at once is difficult for Chinese roses to metabolize, easily causing fertilizer damage.
What should I do if the new buds of the Chinese rose turn black before fully growing out?
Some minor fertilizer damage may be subtle, only showing minor burned buds, while the old leaves of Chinese roses have almost no changes, or only slight yellowing of the leaf edges. This minor fertilizer damage is easily ignored by us, but once the new buds are burned, it will be difficult to grow new buds for a while.
For this minor fertilizer damage, prevention should be the main approach. When fertilizing, start with a light fertilizer and gradually increase the concentration of the nutrient solution as the new buds grow, which will not cause major problems.
If Chinese roses have black buds, it is recommended to first observe the other Chinese rose leaves, especially the new leaves, to see if there are symptoms of fertilizer damage for auxiliary judgment.
2. Pruning too early and continuous drought
Actually, the occurrence of fertilizer damage is closely related to the weather and the dryness or moisture of the potting soil. If pruning in autumn is too early and the temperature is still relatively high, this is inherently not conducive to the growth of new buds. Additionally, after pruning, water consumption decreases, and many gardening enthusiasts may control water, easily causing the potting soil to be short of water.