Why do roses easily get root rot after entering summer?
This is a brief experience on why roses easily get root rot after entering summer. Detailed content will be shared next.
Recently, many flower friends have found that potted roses tend to get root rot easily. What exactly is the reason for this? Today, we will make a list for your reference and solve it accordingly.
Why do roses get root rot easily after entering summer?
Why don't roses easily get root rot in spring, but they often do in summer? This has a lot to do with the growth habits of roses. In spring, roses grow fast, have many leaves, and consume a lot of water. Moreover, the temperature is not particularly high. As long as the potting soil is not积水 for a long time, it is generally less likely to get root rot.
But after entering summer, the situation changes. First, after the first bloom of spring, we will prune the roses. Well-maintained potted roses will quickly sprout new buds after pruning, preparing to bloom for the second time. However, for roses that are not well-maintained or inherently weak, they tend to go astray.
1. Insufficient fertilization and water do not promote new buds
If no additional fertilization is done after blooming, the rose plant has no motivation to sprout new buds or sprouts very few. Due to the sparse branches and leaves, the transpiration is relatively weak, and at this time, the consumption of water is actually quite low.
However, the surface of the potting soil easily dries up under the sun. When flower friends see the surface of the potting soil dry, they think the soil is dry and immediately water it. However, the inside of the potting soil is not dry. This can easily lead to overwatering.
Why do roses easily get root rot after entering summer?
Especially for roses grown indoors on balconies, after excessive watering, the moisture dissipates slowly. When exposed to the sun, it is easy for the roots to have poor breathing due to high humidity and high temperature of the potting soil, leading to root rot. This gradually shows signs of weak new buds and yellowing new leaves.
The configuration of the potting soil is also a very important factor. The worst-case scenario is soil that appears loose and breathable on the surface but is actually hot and humid inside. It is recommended to add at least 1/3 of aggregate materials to the potting soil for roses to increase aeration.
2. Infestation of red spider mites
After the first bloom of spring, it is the season for red spider mites to爆发. This year's weather is abnormal, and the infestation of red spider mites is particularly severe. Once roses are infected, their growth is greatly affected, and they may even become dormant.
After being infected with red spider mites, the leaves of roses are damaged, transpiration is reduced, and the drying and wetting cycle of the potting soil naturally slows down. If the problem with roses is not discovered in time and watering is still done as if the plants are vigorous, it is also very easy to cause excessive water and root rot.
3. Managing weak and strong seedlings uniformly