The simple springtime trick for a thick, lush green lawn

A member of staff from a garden centre explains the simple springtime trick that helps your lawn grow thick and lush green again.

By late February, many homeowners look out of the window in frustration: instead of rich green grass, they see brown patches, moss and flattened areas. This is precisely when most people feel compelled to do something – and often choose the wrong approach. An experienced garden centre employee sets out a straightforward sequence of steps that can restore even a tired lawn to good condition surprisingly quickly.

The right start to spring

Timing is crucial. Once temperatures have become consistently milder and the ground is no longer frozen, the lawn begins to wake up. In central Europe, this period is usually during March.

Many people become impatient at this point and cut the grass back drastically. That does more harm than good. The gardening expert recommends taking the first stage slowly.

“For the first cuts of the year, never remove more than one third of the blade length – otherwise mowing weakens the plant.”

In practice, if the lawn is around 9 centimetres high, the mower should be set to roughly 6 centimetres. If it still appears a little too long afterwards, make another gentle cut a few days later. This allows the lawn to adjust to being maintained and produce fresh shoots.

Mulching or collecting clippings?

Many modern lawnmowers have a mulching setting. The mower chops the grass finely and spreads it in a thin layer across the lawn. During summer, this provides useful natural fertiliser.

Spring conditions are different. Following winter, lawns are often wet and matted, with softer blades of grass. If substantial amounts of clippings are left behind, they stick together and form a blanket over the turf. Less air and light can reach the soil, causing the lawn to suffer.

• In March and early April: collect the clippings in the grass box.
• From May onwards, in dry weather: introduce mulching gradually.
• For very thick, long grass: always remove the clippings so that they do not rot.

For the first few mowing sessions in particular, it is worth playing safe and using the collection box. This lets the grass surface breathe freely.

Why your lawn needs air

One aspect that is often overlooked is that the soil beneath the grass needs care as well as the blades themselves. Over time, the ground becomes compacted. Heavy soil with a high loam or clay content is especially prone to this. Every walk across the lawn compresses it a little more.

As a result, water either remains on the surface or runs off rather than soaking deeply into the root zone. Oxygen cannot reach the soil as effectively, limiting the roots’ ability to function. Moss and thatch spread, leaving the lawn looking tired and patchy.

“A few simple steps to aerate the lawn can make the difference between a thin patchwork and dense green grass.”

How to aerate your lawn properly

For smaller lawns, manual work is entirely sufficient. The garden department employee recommends combining raking with piercing the soil.

Typical steps include:

• Remove moss and thatch: Rake firmly across the area with a sturdy lawn rake until moss, dead grass and thatch are loosened.
• Pierce the soil: Push a garden fork or lawn aerator fork into the ground at regular intervals. The holes can be several centimetres deep.
• Add sand if needed: In badly compacted spots, brush fine horticultural sand into the holes. This improves the soil structure over the long term.

Those with a large lawn may find an electric or petrol scarifier more convenient. Its rotating blades lightly score the ground while combing out thatch and moss.

Here is a brief overview of the differences:

Method	Best used for	Effect
Rake	Small gardens	Removes moss and loose thatch
Scarifier	Medium to large areas	Cuts into thatch and lightly loosens the soil
Fork / aerator	Compacted areas	Improves water drainage and air supply

Filling gaps: how bare patches grow grass again

Once the soil has been loosened and cleared of thatch, one question remains: what should be done about bare areas? Here, the garden centre expert places particular emphasis on an intermediate step that many people miss.

“Bare patches first need a fresh bed of loose soil – only then are new seed or turf worthwhile.”

This means thoroughly loosening the top two to three centimetres of soil in the bare patch, working in some fresh lawn soil or humus-rich garden soil where necessary, then levelling it gently. Only then should you add either fresh seed or ready-laid turf pieces.

Turf or overseeding – which is more suitable?

There are essentially two options for making bare areas green again:

• Turf / ready-laid lawn: Ideal for anyone who is impatient. The area looks excellent again within a day. The pieces need to be pressed down well and watered sufficiently.
• Overseeding with a specialist lawn seed mix: Less expensive, but it requires some patience. The expert advises choosing a repair or regeneration mix designed specifically to fill gaps.

When overseeding, scatter seed thinly but evenly, rake it in lightly so it makes contact with the soil, and keep it consistently moist during the first few weeks.

Birds, fertiliser and the right time

Many amateur gardeners know the problem: as soon as fresh seed is laid, the first sparrows are already at the “buffet”. Birds are particularly keen to eat newly scattered seed in early spring.

The practical tip is either to wait until temperatures rise further and natural food becomes more plentiful for birds, or to deliberately offer the winged visitors an alternative. Setting up feeding stations with, for example, fat balls can often distract them from the lawn.

At the same time, there is the question of fertiliser. A nitrogen-rich lawn fertiliser stimulates growth. This makes the lawn denser and better able to suppress moss and weeds.

“When using lawn fertiliser, it is better to apply a measured amount than to assume that more is better.”

If too much fertiliser is spread, the grass blades may shoot up quickly but remain soft and vulnerable. Scorching is also possible if nutrient salts are present on the lawn in excessive concentrations. A spreader helps distribute the correct amount evenly.

When the mulcher becomes self-sufficient

Once the days are longer and warmer and the lawn is growing strongly, the mower’s mulching function can be used again. The fine clippings then return nutrients to the lawn and reduce the need for fertiliser.

Important points:

• Mulch only when the grass is dry.
• Remove no more than one third of the blade length.
• Mow regularly so that too much material does not build up at once.

Anyone who follows this pattern creates an almost small nutrient cycle in their own garden: grass grows, is cut, decomposes and supplies fresh nutrients.

What many people underestimate: patience and realistic expectations

A lawn is a long-term crop. Even with the best advice, a neglected area will not turn into a perfect park within a week. Initial improvements are often visible after only a few days, but the full result develops over weeks and months.

Where soil is severely compacted, a multi-year plan is especially worthwhile: aerate a little every spring, add sand where needed, fertilise regularly but not excessively, and avoid mowing too short in summer. Together, these measures strengthen the turf permanently.

It also helps to consider how the lawn is used. A purely ornamental lawn can tolerate more meticulous care, whereas a family lawn used by children, paddling pools and garden parties needs tougher grass varieties and a little more acceptance of patches or bare spots. Anyone who realistically assesses their household’s needs and the wear placed on the area can adapt the care steps more effectively.

The result is exactly what many people quietly hope for: a deep-green, pleasantly springy lawn that is enjoyable to walk across barefoot and sturdy enough to spread out a blanket without guilt – because good care has made the ground strong enough to recover again.