Why do flowers need to be repotted frequently?
A brief knowledge about green plants, introducing you to the related experience of growing flowers at home, why do flowers need to be repotted frequently? The editor of the website will introduce to the netizens next.
Turning the pot means frequently changing the direction of the pot during the growth of flowers. Since some flowering plants have phototropism, if the pot is not frequently turned to adjust the light, it will result in poor shapes such as crown bias, affecting the ornamental value. Why do flowers have phototropism? This is due to the effect of auxins in their bodies.
Auxins are mostly concentrated in the areas of vigorous growth, such as meristem, cambium cells, and young leaves at the tips of stems, buds, and roots, thus showing strong phototropism in young leaves and branches, while old leaves and branches have weak or no phototropism. Experiments have shown that light can change the distribution of auxins, and the phototropism of flowers is related to the uneven distribution of auxins caused by unilateral light.
For instance, someone conducted an experiment using pelargoniums and found that the side of the stem facing the light had 35% auxins, while the side facing away from the light had 65%. The side with more auxins had faster cell growth, and the side with fewer auxins had slower cell growth, resulting in the stem bending towards the slower-growing side, which is towards the sunny side, showing phototropism. Therefore, if the pot is not turned for a long time and is left to grow naturally, the plant will grow biased. Some flower friends' clivia and other flowers sometimes have crooked leaves, which is because they did not start turning the pot frequently from the seedling stage.
In order to keep the plant symmetrical, it is necessary to pay attention to frequently changing the direction of the pot placement, especially during the vigorous growth period, the pot should be rotated once every 7 days or so. When turning the pot, it is best to rotate the pot 180° in place, so that the leaves can be evenly distributed, the flower head can be upright, and the plant can stand straight without leaning.
Pelargoniums, clivia, crinums, chrysanthemums, primroses, asparagus, African daisies, fuchsia, glasshouse orchids, and gold莲花 all have obvious phototropism.
The above introduction about why flowers need to be repotted frequently is for netizens' reference.