Calibrachoa Cherry Red does best when planted in well-draining, organic soil. They are not picky when it comes to soil pH levels. Be sure to keep their soil evenly moist, without overwatering them. Overwatering your flowers will cause damage to their root system. Aloha Kona Cherry Red can tolerate urban pollution and thrives in an inner-city environment. They look beautiful when planted in a hanging planter because of their trailing growth habit. Use well-draining soil and a container with drainage holes when potting this flower.