What Is the Ideal Temperature Range for Mexican petunia?
As you care for your plants, your bond with them will deepen. Trust your intuition as you learn about their temperature needs, celebrating the journey you share.
Temperature Essentials for Mexican petunia
Mexican petunia has some cold tolerance and generally does not require any additional measures when the temperature is above -5°C. However, if the temperature is expected to drop below -5°C, it is necessary to take some temporary measures for cold protection, such as wrapping the plant with plastic film, fabric, or other materials. Once the temperature rises again, the protective measures should be removed promptly.
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Signs of Low and High Temperature in Mexican petunia
Symptoms of Low Temperature in Mexican petunia
Mexican petunia has moderate tolerance to low temperatures and thrives best when the temperature is above 15°C. During winter, it should be kept above -5°C. When the temperature falls below -10°C, the leaves may start to droop. In mild cases, they can recover, but in severe cases, the leaves will wilt and eventually fall off.
Solutions for Low Temperature in Mexican petunia
Trim off the frost-damaged parts. Prior to encountering low temperatures again, wrap the plant with materials such as non-woven fabric or cloth, and construct a wind barrier to protect it from the cold wind.
Symptoms of High Temperature in Mexican petunia
During summer, Mexican petunia should be kept below 38°C. When the temperature exceeds 43°C, the color of the leaves becomes lighter, the leaf tips may become dry and withered, the leaves may curl, and the plant becomes more susceptible to sunburn.
Solutions for High Temperature in Mexican petunia
Trim away the sunburned and dried-up parts. Move the plant to a location that provides shade from the midday and afternoon sun, or use a shade cloth to create shade. Water the plant in the morning and evening to keep the soil moist.
