When to repot and change the soil for gardenias
The web introduces the related introduction of green plants and flowers about when to repot and change the soil for gardenias. Next, the editor will answer your questions in detail.
When to repot and change the soil for gardenias, gardenias prefer a warm and humid environment, with an optimal growth temperature above 18°C. When growing outdoors, it is best to choose soil at least 30cm deep, rich in organic matter, with good drainage, and avoid waterlogging. When potting, you can mix 25 grams of soilless medium into the soil to increase the aeration of the potting soil, and change the soil and pot once a year, with the pot size adjusted to the plant. Spring or autumn is more suitable for this process.
Additionally, pruning should be done once from after the flowers fade until August; after August, the flower buds begin to differentiate and should not be pruned to avoid affecting the flowering the following year. Pruning involves removing dense and dead branches to allow for better air circulation and sunlight. Fertilize once in both spring and autumn. If no fruit is harvested, the fruit can be removed after the flowers fade to avoid wasting the plant's nutrients.
Gardenias grow rapidly with a vigorous root system, which is very adaptable to the southern environment. If they are grown in a pot for 2 to 3 years, the roots will fill the pot and start to age. Failing to repot and change the soil at this stage will affect the plant's growth. The aging roots will also reduce their ability to absorb water and nutrients, and the medium, filled with roots, will also have reduced water retention. If the plant is not properly pruned and allowed to grow unchecked, strong sunlight and high temperatures can easily cause the plant to lose more water through evaporation than it can absorb, leading to dehydration and death. Therefore, when cultivating many potted plants, it is necessary to note that repotting should be done at least once every two years, and pruning is needed annually to maintain the plant's regenerative growth. The above is the content about when to repot and change the soil for gardenias.
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