Kinsman RROLL Rain Mat Roll, 16-1/4 in L, 22 in W

Cut to size for hayracks, planters and larger baskets. Place these mats down in the growing medium at root level as you plant each basket, hayrack or planter. These mats soak up water as rapidly as rain-gel but provide a stable reservoir which the roots will actually grow into. Made in England. They hold moisture in the soil of hanging baskets and containers, so plants do not dry out as quickly, improving displays and growth even in dry conditions. Rain gel may cut your watering time in half. Adds potassium not sodium another advantage of rain-gel and rain-mats is that they slowly release small traces of potassium, unlike other products that release sodium (salt) which can adversely affect some plants.