There’s a few different answers to this, the most common problem I find is a lack of water or drought. If the plants don’t have water they can photosynthesis or respire. The cells also don’t function and so the plant goes into dormancy. 

A lack of water can also impact on the ability of the plant to take in nutrients like Nitrogen and Magnesium.

If there is slight discolouration of the leaves then applying fertilisers with Nitrogen will improve the colour. If you’d like a deeper green, Iron can be applied. 

To keep a lawn tidy, regular mowing is must. This is a really good starting point as mowing also stimulates the lawn to thicken up or tiller. Mowing regularly reduces the stress on the plants. If you wish to mulch (return clippings) then mowing regularly will prevent clumps of grass clippings and patches diving underneath. Mulching can also help against moss and returns Nitrogen to the soil.

The next important task is to keep lawn watered, this keeps the lawn green through drought spells and prevents dead patches forming. The best way to get water on a lawn is at night when the temperatures are cooler and in large doses to force the water further into the soil.

If these things are in place then fertiliser can be used to keep the lawn healthy. Nitrogen, Phosphorus and Potassium are the main nutrients needed. Fertilisers made for turf will have percentages of these nutrients. 

Maintenance also includes remedial tasks such as scarification, aeration, top dressing and over-seeding. These are used to keep thatch under control, allow oxygen into the soil, re-level and improve the density of the lawn.

There are 4 renovation tasks, scarification, aeration, top dressing and over-seeding. These are techniques used to improve lawns. Scarification is used to remove thatch and moss from the surface. We used a machine with vertical spinning blades to scratch these undesirable things out.

Aeration requires a tool to punch holes into the lawn, it is designed to de-compact the soil and allow oxygen in and carbon dioxide out. It also helps excess water drain away.

Top dressing is the application of material to improve the characteristics of the soil and or re-level the surface.

Over-seeding is used to repopulate the lawn with grass plants.

Which one or combination of these 4 will depend on the problems with your lawn or the use it gets.

A lawn treatment is an application of a product to improve the lawn. This could cover weed control, moss control and fertilisers. It could also include wetting agents to help with dry patch, lime to raise the pH or others.

A lawn treatment plan is collection of treatments to improve and help maintain the health of your lawn. Each treatment plan will differ across providers, based on products or number of visits.

The simple answer is nothing. Wildflowers are considered weeds in an ornamental lawn.

If you want to turn an area of lawn into a wildflower meadow then first get hold of a 100% wildflower seed mix. With an existing lawn you don’t want to encourage grass. The next step is to scarify the lawn to expose the soil and then seed.

Wildflower meadows only need cutting down in the Autumn and keeping the leaves off through the Winter.

It is common for the first few years to have keep doing this as the soil on gardens is fertile. This is is problem as the fertility encourages the grass too much.