Ideal Temperature for Mexican petunia
Images of Mexican petunia
Signs of Cold Stress in Mexican petunia
Symptoms
Mexican petunia exhibits moderate resilience to cool temperatures and flourishes optimally when the temperature exceeds 70℉. Throughout the winter, it should be maintained above 60℉. Should the temperature drop below 40℉, the foliage might begin to sag. In minor instances, recovery is possible, but in severe cases, the leaves will wither and ultimately detach.
Solutions
Remove any parts damaged by frost. Before subsequent exposure to low temperatures, cover the plant with materials like non-woven fabric or cloth, and build a windbreak to shield it from cold drafts.
Signs of Heat Stress in Mexican petunia
Symptoms
In the summer, Mexican petunia ought to be kept below 85℉. When temperatures surpass 95℉, the leaf coloration lightens, leaf tips might become parched and shriveled, leaves could curl, and the plant becomes more prone to sun damage.
Solutions
Prune off any sun-scorched and desiccated sections. Relocate the plant to an area offering protection from the intense midday and afternoon sun, or employ a shade cloth for cover. Irrigate the plant in the morning and evening to maintain soil moisture.
