Ideal Temperature for Mexican sunflower

Mexican sunflower favors warm conditions and cannot withstand cold. It flourishes optimally when temperatures exceed 68℉. In winter, it needs to be maintained above 59℉. Should the temperature drop below 50℉, foliage may lose some color. Following frost damage, leaves progressively turn brown or black, and signs like wilting and drooping might appear.

Remove any parts damaged by frost. Promptly relocate indoors to a warm setting for protection from cold. Select a location near a south-facing window for the plant, ensuring abundant light. Furthermore, avoid positioning the plant near heating units or AC vents to prevent excessive air dryness.

In summer, Mexican sunflower should be maintained below 86℉. When temperatures surpass 95℉, leaf coloration fades, and the plant becomes more prone to sun damage.

Prune off any sun-scorched and desiccated sections. Relocate the plant to an area offering shade from intense midday and afternoon sun. Hydrate the plant in the morning and evening to maintain soil moisture.