What are wetting agents or soil wetters?
- Wetting agents are like a detergent or surfactant that attract water to the soils surface, helping it to soak in.
- Hydrophobic soils repel water which can lead to serious problems in the garden and lawn.
- For existing lawns that are hydrophobic, a wetting agent is needed.
What is hydrophobic soil?
Hydrophobic soils repel water and the water runs off the surface or simply pools and doesn’t absorb. It is a common problem, especially in sandy soils. However it can affect many soil types that have not received regular water or are compacted.
If there’s been a dry spell and the lawn has not been watered and you notice it looking a touch lacklustre, check to see if your soil is water repellent. You can do this by pouring some water onto a few areas. If it doesn’t soak in quickly, the soil may have developed hydrophobia.
What causes hydrophobic soil?
Hydrophobic soil is caused by the decomposition of organic matter, which leaves a wax like substance forming a coating on soil particles.
After long periods of dry weather, soils can become dehydrated and this is when the hydrophobic surface is exposed, which stops water from penetrating.
How can I fix a hydrophobic lawn?
Wetting agents are like a detergent or surfactant that reduces the surface tension of the water helping it to soak in. They come in liquid or granular form and are sometimes mixed into lawn foods and top-dressing mixes.
Lawn Soaker is a ready to use soil wetting agent specifically developed for use on lawns. It improves the penetration of water so it can reach deep down to the roots. Regular use will ensure the soil re-wets and prevents further dry spots from forming. Apply as frequently as necessary to treat water repellent soil and improve drought resistance. Lawn Soaker will help break down the wax like substance that is caused by the decomposition of organic matter, allowing water to penetrate. Soaker is also ideal to use when there are high amounts of rainfall, aiding the water to be better absorbed into the profile.
