Why is my Vinca minor dying?

Vincas, or periwinkles, can be infected with a fungal disease called aerial phytophthora. The disease spreads when the fungal spores in the soil are splashed on the plants when you water or when it rains. If rains or overwatering continues, the fungus can spread to the base of the plant and it can die.Click to see full answer. Beside this, why is my vinca dying?Vincas, or periwinkles, can be infected with a fungal disease called aerial phytophthora. The disease spreads when the fungal spores in the soil are splashed on the plants when you water or when it rains. If rains or overwatering continues, the fungus can spread to the base of the plant and it can die.Furthermore, how often should you water vincas? Water every other week, or if the top 2 inches of soil feel dry to the touch. Vinca is very drought tolerant and prefers its soil to be on the dry side of moist. Do not wait too long to water, though. One may also ask, what causes periwinkles to wilt and die? A lack of water also will cause vinca to wilt. The plant will wilt, you will water it, it springs back to life and then wilts again when it needs water. This can cause the plants to require more frequent watering or the soil in the container may become so hot it can damage the roots and they may die.Why are the leaves on my vinca curling? Hot or Dry Conditions Vinca may normally curl up during hot, dry summer weather as part of an effort to conserve water. This should not be cause for alarm; the leaves will unfurl in the evening when temperatures drop and humidity increases.