How to Grow and Care
They are semi hardy, make sure that your Myrtillocactus are not exposed to temperatures below 25°F (-4°C) or they may die, nevertheless it is a good advice never let the nighttime's temperatures fall below 50°F (10°C). In the summer place Myrtillocactus in the sunshine (indoors or outdoors). In the winter find a cooler, light spot. That will allow it to go into next spring well-rested, which will make it more likely to flower. This easy-care plant doesn't want a lot of water. Allow the soil to dry out before you give it another drink. Keep the soil completely dry in winter. Treat it to special cactus food once a month in the spring and summer.