Extremely even and precise application of solid granulates

The SOLO 421 granulate spreader is versatile and can be used e.g. for fertilisers, seeds, gritting salt, sand and much more. Worn comfortably on the front of the body, it can distribute up to 9 litres of granulate material precisely and incredibly evenly over inaccessible, steep areas – and at the same time, the spreader is very efficient and allows fast progress with your work.



SOLO: The better choice. Since 1948.

SOLO plant protection sprayers have been synonymous with reliability and the highest quality since 1948. Since then, we have always pursued the aim of offering our customers the right device for the task at hand. Whether it’s for plant protection, cleaning, disinfection or in trade, construction or industry: SOLO has a varied range of devices for you from manual sprayers, through pressure and backpack sprayers, battery-operated and power backpack sprayers, to powerful power misters, cut-off machines, granulate spreaders and blowers – for private use or for professionals.
SOLO sprayers and misters
A short animation about SOLO and our products.


Frequently asked questions about lawn care:
Why should you apply lime to a lawn?
Grass cuttings and leaves on the lawn form organic acids when they rot, which can reduce the pH value of the soil. This can have a negative impact on grass growth. Lime can improve the pH value, however, and improve the nutrients in the soil, which means the lawn can grow properly again. Lime should be applied to a lawn in spring, as soon as the ground is no longer frozen. With the SOLO granulate spreader, you can distribute the granulated lime evenly over the whole lawn after scarification or aeration. By loosening the soil in advance, the lime can penetrate the soil better and thus take full effect. For optimal results, you should apply lime to your lawn every 4 weeks. 
Why use sand in lawn care? 

Sand is often used to promote the growth of a lawn. It enlarges the pores in the soil, which means that the roots can be better supplied with water and air.

It is often mixed with the seed for reseeding, too, so that damaged patches of lawn can grow back more strongly, after scarification or weedkilling for example. Sand is one of the best maintenance agents for your lawn and it can be spread frequently over the lawn area. Ensure that you do not use too much sand, however: the lawn should not be completely covered with it. 


A healthy green lawn requires valuable nutrients such as potassium, phosphorous and nitrogen. Depending on the time of year, however, your lawn will need other lawn fertilisers to remain beautiful, green, thick and weed-free. These can be spread quickly and evenly with the SOLO granulate spreader. Even distribution and correct quantities are crucial here, as over-fertilisation should be avoided. After fertilising, you should water your lawn well so that the soil can absorb the nutrients in the fertiliser better.

Moss on your lawn?

Moss often grows when the lawn is undernourished, the soil quality is poor or it has been overwatered. Especially when there is little sun, moss grows on the lawn. Lime can be applied to improve the soil and add nutrients to it; lime can also be used if the pH value of the soil is below 6. This adds valuable nutrients to the lawn and improves the soil. Special fertilisers can also be used to keep your lawn beautifully moss-free.

When should you resow your lawn?

If your lawn has bald patches and gaps, it is worth reseeding it. In the case of moss growth and heavily scarified lawn areas, reseeding also makes sense. Ideally, reseeding should be carried out after scarification, aeration or application of sand. You should use the same seeds as were used to grow your lawn in the first place to maintain its even, attractive appearance.

Spraying and spreading with SOLO: Perfect tools for any job

Whether it’s for private use in your own garden or as a professional: with the robust and extremely versatile products from SOLO, you are up to any challenge. With SOLO you always enjoy the advantages of the highest quality and performance – whether it’s for professional plant protection, cleaning and disinfection or use in the building trade.

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