Miracle Gro Water Storing Crystals help maintain consistent soil moisture by absorbing and releasing water as plants need it. Designed to reduce water stress caused by heat and drought, these crystals support healthier plant growth by helping prevent both overwatering and underwatering. Ideal for indoor and outdoor plants, the formula mixes easily with soil to reduce the frequency of watering. As the crystals swell to store water and gradually release it, plants stay hydrated longer with less maintenance.