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Retain plant crystals are a safe and easy-to-use soil additive made out of water-absorbing ingredients (cross-linked polyacrylate, bentonite clay, lava rock, and silicates) that absorb up to 40x its own weight in water. 50 lbs of retain can hold up to 250 gallons of water. It increases the water-holding capacity of soil by up to 60%, helping to prevent waterlogging and releasing the water to plants, minimizing evaporation, especially in hanging baskets prone to drying out.
What Makes Retain Different Than Other Water Retention Crystals: In a word... speed. Most water retention beads/crystals soak up water very quickly. You can watch them puff up quickly as they absorb water. They are also unacceptably fast in letting go of the water. Retain takes it sweet time soaking up water, and correspondingly, is very slow to let it go... providing more water, longer, for roots, not evaporation.
Perfect for:
Retain plant water absorption crystals can be used in countless applications from reducing the watering frequency for house plants and keeping plants watered on vacation, to reducing water bills for lawn, garden, farm, landscape, to golf courses. Retain water crystals conserve water, especially in regions prone to heat and drought.
For containers (pots, planters, baskets, seed starts, and house plants) use 1 tablespoon of retain crystals to every 3 cups of soil. For lawn, farm, and garden applications use 5 cups of retain water crystals for each square yard. Simply mix retain evenly into dry soil or another growing medium. Water repeatedly activates the superabsorbent polymers.