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We want new lawn of Buffalo grass.Can buy starting fertiliser with water saving crystals in it.

What is the difference between water saving crystals and wetting agent? Which is best for a new lawn with sandy soil?

Submitted: 06:37PM, 07 Mar 2016
Answer: Hi Bob,

Thank you for contacting us regarding water crystals and wetting agent. Water crystal and wetting agent are two different products with different usages. You can use them separate or in combination with one another.

Water crystals are super absorbent Potassium based acrylic copolymer. It can soak up to 400 times their own weight in water, becoming gel-like when wet. They gradually relinquish water to plant roots over several weeks, and when watering, the crystals rehydrate themselves, and they can last several years before biodegrading harmlessly. Water crystals slow down the soil drying out improve soil aeration and drainage.

You can evenly spread crystal at 10g per m2 into top soil before laying turf, and then water it done.

Wetting agent is a chemical compound called surfactant, it lowers the surface tension between liquid and soil to allow water to penetrate soil. It is particularly useful on soils that have become hydrophobic (water repellent) due to high organic content, sandy soil and over dried potting mix. Wetting agent itself does not absorb water. You need to mix 15ml in 9L of water in a watering can and apply over a lawn of 3m2. It is used for existing lawn or garden bed.

So to answer your question, you can use water crystal in preparing top soil for turf and then wetting agent (Yates waterwise Granular soil wetter) for maintenance. We also have a liquid hose on soil wetter for your convenience.

Hope this helps and happy gardening.

Best Regards,
Louise
Yates Horticulturalist

Answered: 04:01PM, 08 Mar 2016

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