Rainsaver Water Crystals 1kg Tub - Water stress can reduce plant growth and survival rates, especially in newly planted seedlings. Rainsaver Water Crystals swell hundreds of times to absorb water, forming a water reservoir for plants, reducing watering and maintenance cost. When Rainsaver Water Crystals are mixed in under the root zone, they can provide water to the seedling even when the surrounding soil has completely dried out...... Rainsaver Water Crystals perform well in the presence of fertilisers, soil additives and poor quality water. The crystals also improve aeration and drainage in the root zone by constantly expanding and contracting, forcing the soil or potting mix apart. Based on a potassium molecule as opposed to the sodium molecule of other water crystals, Rainsaver Water Crystals have higher available water release rates, and will not contribute to sodicity (salt build up) of the soil..... Specifications - Material Composition: Potassium molecule to avoid sodicity (salt build up) of the soil and for higher available water release rates...... Lifespan: Crystals will re-expand with watering/rain for up to 5 years..... Available sizes: Rainsaver Water Crystals are available in 1kg and 10kg tubs, and in a 20kg bag...... Directions for use - Seedlings: Mix 1 teaspoon of Rainsaver with a spade full of soil...... Small-Medium Trees: Mix 5 grams of Rainsaver with every 10 litres of soil.