Do periwinkles come back every year?

Do periwinkles come back every year? Periwinkles are annuals and must be replanted every year. They do produce lots of tiny seeds as they mature, so they reseed themselves or you can collect the seeds for next year. Also, because they are so prolific in their reseeding, you may have more periwinkles than you desire. … Continue reading Do periwinkles come back every year?