1. RepottingIf the newly purchased fine-leaved petunias are finished seedlings in the flowering period, they cannot be repotted to avoid damaging the plant's roots during the repotting process, which will affect subsequent growth and flowering. If it is a small seedling, you should gradually change to a larger pot as the plant grows. 2. LightingThe fine-leaved petunia likes the sun, but when you buy the potted plants, you must first place them in a well-ventilated place with diffused light for 3 days to adapt. After 3 days, gradually increase the light to full sunlight. More sunlight is beneficial for the plant to accumulate nutrients, allowing the fine-leaved petunia to grow healthily and bloom wildly. 3. TemperatureThe fine-leaved petunia is not afraid of cold but heat. It is fine to keep it outdoors at -2℃, and the plant is not prone to grow tall in cold weather. Just wait until the temperature drops to -3℃ and then bring it indoors to keep warm. In summer, place the plant in a relatively cool environment with plenty of ventilation to help it survive the summer. 4. WateringAs a herbaceous flower, the petunia should be watered according to the principle of "watering when the soil is dry and watering when the soil is wet". Water it thoroughly as soon as the soil surface turns white. If you are worried that the plant is not watered thoroughly, you can use the immersion method to replenish water for the plant, and pour out the water in the tray after the soil is soaked. 5. FertilizationIf the newly purchased petunias are finished seedlings in the flowering period, do not apply fertilizer yet. Wait until the flowers fade before applying phosphorus and potassium fertilizers. If it is a small seedling, chicken manure should be buried every time the pot is changed. Liquid fertilizer with a balanced nitrogen, phosphorus and potassium should be applied during the growing period, and phosphorus and potassium fertilizers should be used instead before flowering. 6. PruningIf the newly purchased petunias are finished seedlings in the flowering period, you have to wait until the flowers of the plant fade, and then cut off the remaining flowers and the two pairs of leaves under the flowers to promote a second flowering. If it is a seedling, wait until the new branches grow 6 leaves, then prune by removing 2 and leaving 4, and continue to top the plant until it is full, then wait for it to bloom. |
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