Answer: If you used one of the soil retentive potting soils, what you are seeing are the moisture holding copolymer chunks that are mixed in with the potting soil. If you remove a few from the soil and set them on a paper towel the water will evaporate and in a few days they will dry out and turn into hard little particles. You can then set them in a saucer of water and they will rehydrate. Copolymers are mixed into potting soils to help them retain moisture for the roots of the plants.
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