How to use wetting agents on your customer’s lawns

It’s been very dry in the UK over the last few weeks; some lawns are already starting to suffer from the lack of rain. We often get asked about wetting agents and how they can be of use this time of year. Read on to find out more, if you still need advice please do get in touch with us, we are happy to advise.

What are lawn wetting agents for?

Wetting agents help with water management in the soil. Our SmartLawn Wetting Agent is specifically designed to help prevent or ease dry patches, those spots in the lawn where the soil seems to be drier than elsewhere.

Dry patches in the soil prevent water from spreading evenly throughout the soil leading to patchy colour and growth of the lawn.

Dry patches are usually due to fungal activity in the soil causing the soil particles to be hydrophobic (water hating). They can also appear because a particular part of the lawn is always in the sun and the water from the cooler, shaded parts does not distribute evenly throughout the whole lawn.

Use as a preventative measure

The best way to use wetting agents is as a preventative measure. In lawns that you have been treating for over a year you may have already identified those which are at risk of poor water management. Ideally, you would treat these with wetting agent in March/April to prevent a dry patch from affecting the lawn quality in the summer.

Preventative applications can be made at the same time as your spring fertiliser treatments. You can concentrate on the known problem areas but you should also treat the rest of the lawn to avoid any obvious application pattern showing.

As the weather clears up the lawn will be able to evenly distribute the rain, even when it’s just a small amount. This will keep the whole lawn greener for longer.

Note: If the summer is very hot and dry, your customer will still need to water the lawn to keep it green. No treatment can keep a lawn that is in extreme drought conditions from going brown.

Use to treat dry patches

Smartlawn Wetting Agent can be used to treat dry patch if you have identified it in a lawn. In this case, a lighter application rate is needed but watering will be required weekly to reverse the damage and help the lawn even-up in colour. Depending on how bad the patch is, you may need to return the following month for a second application.

With SmartLawn Wetting Agent, there’s no need to worry about scorching the lawn if you are using it in the summer, it is formulated to be non-scorch. We do recommend watering in after application though, as this will help the product move through the rootzone effectively.

Photo taken by Simon Rolls-Maurice of Treetops Landscape Contractors

Every lawn is different, call us if you need advice!

The sales team are here to advise and help you. If you have a lawn that you think is suffering with dry patch please get in touch, we can help you work out the most cost-effective way to treat it.

Call us on 01963 364788 or email

2 thoughts on “How to use wetting agents on your customer’s lawns

    • Daisy Lacey BSc (Hons) says:

      Hi Alexandre. Yes you can use wetting agents on house plants; its probably more worth while to repot the plant with good quality compost though.


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