[ Updated 2021] 5 Best Scarifier For Large Garden

It is convenient to remove the so-called “felt,” the aerator can be with an internal combustion engine or electric. Two products certainly recommendable and they are Greenworks 14-Inch 10 Amp Corded Dethatcher which is multifunctional and powerful.

Setting aside time and putting in work are the keys to turning your garden into a crown jewel in your home. Without the grass, everything would just be a collection of different kinds of flowers, as well as bushes and trees. It is absolutely necessary in a lovely garden to keep your lawn looking great.

So, whether you’re a seasoned gardener, or are interested in doing more to care for your lawn, and with autumn approaching, it’s time to get a scarifier. Powered and manual choices are available for you to pick from so that you can always keep your lawn looking fantastic.

It allows you to switch to the scarifying function without having to change the blades. It has a 55 L collection basket . The Sun Joe AJ801E Electric Scarifier + Lawn Dethatcher  is light and easy to maneuver and is considered as one of the best scarifier for a large garden.

5 Best Scarifier For Large Garden [ 2021 Reviews ]

Gardening lovers know how to choose good scarifier. If you are a beginner, however, our buying advice will make you very comfortable. Below is a comparison of the best models sold online: you will be sure to make a good investment.

Greenworks 14-Inch 10 Amp Corded Dethatcher  is a model that offers the dual functionality of scarifier and scarifier, easy to use, and excellent quality-price ratio; therefore, it is not surprising that it is among the best sellers.

 Main Features

Dual functionality

To ensure a beautiful, healthy and vigorous lawn, a garden needs a special treatment called scarification, to be performed after the first and after the last cut of the season, to prepare it for both the vegetative and winter phases.

The scarifying of the turf allows it to take on air, light, and nutrients. At the same time, during the summer season, on the other hand, periodic aeration is useful to remove the weeds and debris left after cutting or unwanted accumulations of moss.

The Greenworks 14-Inch 10 Amp Corded scarifier, belonging to the Combicare line of scarifiers, produced by the German company Al-Ko, offers the advantage of carrying out both types of lawn treatment, resulting in extremely convenient from the quality-price ratio.

Powerful and easy to use

The Greenworks 14-Inch 10 Amp Corded Dethatcher with a compact and clean design, with a light but resistant body. It is powered by a 1,300 Watt electric motor, powered by the popular electrical network via the integrated cable.

The cable, in reality, is short and has the advantage of being fixed to the handlebar frame and ending in a European type electrical outlet, so that it can be connected to an extension without being in the way during work; the handle is adjustable in height and has an ergonomic shape and a coating that improves its comfort and grip capacity, the controls are also placed on the handle, to control the scarifier more easily.

It is equipped with two rollers, the one for aeration has 24 steel springs and a working width of 37 cm, while the one for scarifying has 14 steel blades and is 38 cm wide; the two rollers are interchangeable, of course, and do not require the use of any tools to be replaced.

Practical and functional

The height of the rollers can be adjusted at will on five different levels. This is important for scarifying because it allows you to adjust the entry of the blades into the ground by just a few millimeters, so as not to subject them to intensive wear.

The Greenworks 14-Inch 10 Amp Corded Dethatcher is also equipped with a very comfortable 55-liter volume collection bag, making it even more practical and functional, allowing it to be used even to remove debris and weeds from the garden.

The only flaw of the Greenworks 14-Inch 10 Amp Corded Dethatcher , according to the opinions of some buyers, is the scarifier roller, which tends to wear out rather quickly, mainly if used on particularly clayey or dry soils.

Greenworks 10 Amp 14-Inch Corded Dethatcher


  • The Greenworks 14-Inch 10 Amp Corded Dethatcher
    , produced by Greenworks , has the advantage of offering power and reliability: its 1,300 Watt motor provides excellent performance that significantly speeds up times and, consequently, reduces efforts, requiring only minimal and decidedly occasional maintenance.


  • The Comfort 38E scarifier offers an additional function that of scarifier, the unique roller supplied. However, according to some buyers is of low quality and tends to wear quickly, mainly if it works on too dry and hard soils.

 In second place in our ranking, we find Sun Joe AJ801E Electric Scarifier + Lawn Dethatcher what is in all probability the best electric scarifier in terms of quality/price ratio. With a rather low price, it is designed for gardens of not excessive size. However, its power of “only” 600 watts must not deceive: it does its job entirely, even if it makes a little effort with the most stubborn weeds.

It is also equipped with a collection basket, which given the amount of material moved at each step, tends to fill up rather quickly. Therefore, it allows us to carry out the classic aeration operations of the lawn quickly and efficiently in spring (a double pass is not bad) and in autumn, using three different height positions.

The collection width is 30 cm, and with a weight of just over 9 kg, the scarifier is very easy to transport and easy to use. It is, therefore, a good purchase, even in the absence of special offers.

The performances of the Black & Decker are remarkable and indeed, considering the price, exceptional. Let’s review all the most essential features of this machine.

Sun Joe AJ801E Electric Scarifier + Lawn Dethatcher


Low prices:

Therefore, the scarifier is suitable for those who want to spend as little as possible. Difficult to find a cheaper model that guarantees the same performance.

Harvest height:

Three height levels are easily adjusted and allow you to take care of the garden at any time of the year for more or less deep cleaning.

Ease of use:

Numerous users point out that Black & Decker is very simple to assemble and use, also suitable for the less experienced.


The reduced weight of the scarifier increases its handling and makes it easy to lift and transport.




The reduced weight of the scarifier increases its handling and makes it easy to lift and transport.


Rank #3: Sun Joe AJ798E Electric Lawn Dethatcher, 13 inch

 If you are still undecided about which scarifier to buy, but you are a massive fan of the Bosch brand, you will be happy to know that it builds excellent scarifiers. In particular, this model seems to be the high quality that amply rewards the most successful and slightly above-average price.

It has a good power of 900 watts, enhanced by the innovative roller with ten double flexible steel prongs. Thanks to openings for the introduction of air, the residues of moss and cut grass are quickly removed and placed in the sizeable 50-liter collection basket.

Easy to handle, it has a working width of 32 cm and great adjustment possibilities: the working height can be set at +10, +5, 0, and -5 mm.

The Kwantasmile Electric Lawn Scarifier / Lawn Dethatcher is also comfortable when stored, as it weighs just over 9 kg and has foldable handles and a detachable and stackable basket: space minimized to the maximum!

The performance of the Bosch scarifier proves to be up to the fame of the German giant. Here is a summary of this practical and light model to maneuver.

Sun Joe AJ798E Electric Lawn Dethatcher



The minimum dimensions are perhaps the most evident advantage that the machine guarantees; it has folding handles and a detachable and stackable basket that allows you to store it at the height of only 40 cm.

Jet Collect:

It is the new residue collection system that uses flexible steel prongs and individual ventilation channels to ensure the most effective result.


The Bosch motor is characterized by the remarkable ability to perform the job quickly, effectively, and without jamming.


The Bosch motor is characterized by the remarkable ability to perform the job quickly, effectively, and without jamming.




Anyone who intends to use the machine also as a scarifier could be dissatisfied with the short length of the prongs.


The Scotts Outdoor Power Tools LSW70026S Push Lawn Sweeper  is a good scarifier. It is driven by an induction motor with a power of 1,200 W and, therefore, gives its best on medium-small soils. The user can adjust the depth according to three levels. The work is done with excellent uniformity.

Uneven ground is not a problem, thanks to two large wheels, which should be noted and do not damage the turf. The scarifier is small in size and can be easily put aside as it takes up little space. The handle is comfortable. Those who have already purchased the item said they were satisfied with the quality of the work, which was also carried out quickly.

The materials are not harmful, and given the price, there is to be considered satisfied. Most of the criticisms have been made to the collector: it is too small. It has a capacity of 28 liters but is insufficient. According to some users, then, the machine is noisy, and the system for changing the rollers is impractical.

Scotts Outdoor Power Tools LSW70026S 26-Inch Push Lawn Sweeper



We are satisfied with the quality of the work done with the scarifier: everything is completed quickly, and the final result does not disappoint.


In our view, the sale price of the item being analyzed is reasonable, which is one more reason to consider it.




This is the real disappointment of the scarifier: its 28 liters of capacity is insufficient, it fills up quickly and forces you to stop continuously to empty it.

Changing the rollers:

There have been difficulties in changing the rollers; the system is not secure at least until you understand the mechanism well.


Rank #5: Agri-Fab 45-0492 Lawn Sweeper

 We close our top 5 of the best models of the year with what we believe to be the best petrol-powered scarifier of 2020, powered by petrol. An excellent choice for those who do not like always having to want superior power (1300 watts) and many variations of use.

This product is, in fact, able to perform both the function of aerator (roller with 14 steel blades) and scarifier (roller with 24 steel springs) and allows you to work comfortably on surfaces that do not exceed 1200 square meters.

With its weight of about 22 kg, it is the heaviest in our lot, but it is still quite handy, and you won’t have the hassle of the cable. The collection basket has a functional capacity of 55 liters, to be able to work without interruption for a long time. The depth can be adjusted to five different positions depending on the conditions of the lawn and the degree of intervention to be carried out.

Here are the main pros and cons of the Al-Ko scarifier, a petrol engine machine that therefore does not have the annoying power cable and boasts high performance (and price).

Agri-Fab 45-0492 Lawn Sweeper



In addition to airing, this model also allows you to scarify and collect the residues produced in a sizeable 55-liter basket included in the package.


The potent motor allows you to perform the work with high efficiency. Simultaneously, the cutting depth is adjustable on five levels to choose the type of intervention to be played with extreme precision.




Despite being quite manageable, the machine, with its 22 kg, indeed cannot be defined as light.

Collection basket:

Many user opinions indicate an insufficient capacity of the collection basket.


Rank #6: Earthwise LSW70021 21-Inch Leaf

 In first place in our ranking for the best scarifier for the large garden of 2020, we find a model that can also perform the function of scarifier and collection, thanks to the presence of two rollers intended for the two different uses. Switching from the aerator roller to the scarifier roller is easy and does not require the tools.

With the first, you can remove moss and felt that cover your lawn, bringing it back to its full splendor in a couple of weeks. The second is used for more radical interventions, lawn regeneration. The collection bag (with a capacity of 55 liters) is an extra profit that few products in this price range provide.

The 1300 watt electric motor has an ideal power for this type of work and requires very little maintenance, just be careful of the cable.

The depth of the blades is easily adjustable even during processing for excellent work.

The benefits offered by the Al-Ko model are, therefore, several. The price is extremely competitive; clicking on the link below, you will find a shop where you can buy the scarifier at an even more advantageous cost.

Earthwise LSW70021 21-Inch Leaf



The machine is versatile because, unlike many others, it is equipped with two separate rollers, one for aerating and another for scarifying. Therefore, it is for deep cleaning, given a regeneration of the lawn.

Roller change:

When you want to switch from one type of job to another, the rollers must be replaced. The advantage of the Al-Ko scarifier/scarifier is that it is easy and can be done without tools.

Collection basket:

The collection basket is supplied, and its considerable capacity of 55 liters is not always found in similar products.


The motor has a power of 1,300 watts, which ensures active, quick, and practically effortless work. Also, it requires very little maintenance.




Probably blades for scarifying tend to wear out too quickly.


How to use a scarifier

The care and maintenance of the garden involve carrying out certain operations at regular intervals that allow improving its appearance and livability. Therefore, keeping the grass at a constant height is not the only action to be carried out with greater or lesser frequency depending on the season. We will have to work so that the earth is always able to absorb the necessary nutrients so that the grass is still green and luxuriant.

Let’s see how to perform correct aeration that allows the soil to renew itself with balance.

Act to break the clods

The scarifier removes the felt that settles on the ground below the surface layer of the grass, together with the remains of the leaves and roots that remain after working with the mower and also the moss that forms with moisture and sun.

To be sure of performing proper maintenance of the lawn, it is necessary to make sure that the layer of dead and non-composted material is removed to guarantee the best permeability of the soil. In this way, water and fertilizers enter deep, feeding the soil depleted by the monoculture of the type of grass chosen for your lawn. Even the robust gramignone that seems to be able to resist any calamity, over time, makes the soil extremely compact, especially in the most superficial layer.

This is because the roots do not go very deep, and these, together with some insects and animals, naturally move the earth and air the earth. Using a machine, you replace natural agents and ensure proper oxygenation and exchange with the outside to receive the fertilizing nutrients you want to treat your lawn.

How often to repeat the treatment

It is unnecessary to repeat the operation of aerating and scarifying the soil with the same frequency with which the grass is mowed. This indeed grows faster than the roots with their horizontal expansion manage to compact the soil. So just choose the optimal period to let the soil get air and do it only once a year.

It is recommended to do this when this is at rest, therefore before the arrival of winter. But depending on the area in which you are located, it may be appropriate to carry out the treatment before the arrival of spring. In this case, it will be useful to ask a local expert for more specific advice.

During the rest of the year, the scarifier can remain comfortably at rest, and therefore, it will be useful to be able to put it away from the weather. The small dimensions of this tool and the possibility of being ready to mount the blades, according to the needs, to scarify or more superficially aerate the ground, simplify the sheltering operation.

What substances are missing from the soil

Oxygen, but also nitrogenous substances and other nutrients, may be lacking in the ground and give a scruffy and battered appearance to the leaves, which will take on the typical yellowish and suffered color of the suffering seedlings.

The right composition of the fertilizer must be chosen based on the type of plant selected for the form of your lawn: has only one kind of seed been planted? Are there areas of shade or more exposed to the action of the sun? And do the plants that grow in flower beds have roots that extend wide or deep? The correct answer to all these questions will allow you to guarantee the most appropriate treatment for your garden’s well-being.

Sun Joe MJ401E-PRO 13 Amp Electric Lawn Mower

Buying Guide – How To Choose The Best Scarifier For Large Garden?

To have a perfectly healthy lawn, it is not enough to regularly cut the grass, but it is advisable to use an aerator. What is it, and what are the aspects to consider before choosing the right one?

We answer these and other questions in this guide in which we have put in a hypothetical classification all the discriminants to be known to decide if it is a device you need.

Maybe not everyone knows that …

As the name suggests, scarifiers are gardening tools that allow you to remove all debris, leaves, and cut grass from a turf that prevents the soil from absorbing the right amount of nutrients and water. Eliminating what in jargon is called “felt” is the prerogative of these machines, which therefore make an essential contribution to the maintenance and beauty of a lawn.

There are specific periods during the year during which to use an aerator: at the end of winter, when the grass is preparing to grow new and luxuriant, or before sowing so that the seeds end up on the ground instead of being “hindered” ”From the felt as mentioned earlier.

Having said when and why to use a scarifier, let’s see now which models are available on the market and made by the best brands in the sector. Typically it is possible to purchase an electrically powered machine and one with an internal combustion engine.

The first lends itself better to be used on not too full grounds because it has the limitation of movement of the cable to be connected to the power outlet. The second does not have any type of travel restriction but is noisier and requires fuel purchases. Read the reviews and datasheets to find the model closest to your needs for the relationship between performance and price.

Build quality

The care in the assembly of the various components and the variety of the materials are unequivocally placed at the top of a hypothetical classification of the conditions that an aerator must-have. Keep in mind that a machine of this type resembles a traditional lawnmower and therefore is equipped with both a frame and a handle, typically made of plastic.

The shell must be studied to resist humidity and heat and to transmit robustness while maintaining a light structure. On the other hand, the handle would be better if it were adjustable, to adapt it to the height of those who will use the scarifier, and ergonomic, for a firmer handle.

Finally, the lower part of the tool is the one equipped with a roller on which a series of blades (of varying numbers and shapes) are inserted, which function as a sort of comb that takes care of removing all debris.

A combined model

In general, to ensure that the scarifier action is effective, our advice is to focus on a model that releases a power between 1,000 and 1,400 watts. It is equipped with a roller that allows the adjustment of the length of the blades.

The best brands also offer models that display dual functionality, combining the capabilities of an aerator with those of a scarifier. By comparing prices, it emerges that these devices are not much more expensive than those that perform a single operation. Therefore they can represent an exciting alternative.

Finally, to ensure long life to your machine, remember to store it in a dry place away from heat sources, to check the condition of the blades regularly, and to empty the container where the felt ends at the end of each use.


Conclusion - Best Scarifier For Large Garden

No sooner does the lawn get overrun with moss, thatch, and other organic stuff than it begins to decay. A barrier is forming because of this accumulation of organic debris, which inhibits nutrients from reaching the roots. To give you an idea of the magnitude of the problem, when you step on your lawn, you notice that the ground is spongy. As a solution to this problem, scarifying the lawn will be required. Using a dependable lawn scarifier is an easy task, but finding the best lawn scarifier can be challenging because there are a number of various types to select from, all of which use either manual, electric, or petrol power.

Regardless of your budget, we will teach you how to choose the ideal model for your needs. If you are in the market for an electric or petrol model, you will find that the six goods listed below have been carefully selected based on our earlier study, which resulted in the selection of 20 different items.

We spent a lot of time researching reliable grass scarifiers that are easily accessible to the general public. The Bosch AVR 1100 Verti Cutter Lawn Raker earned top reviews for its ability to perform several functions all under one hood at an affordable price. The 14-rotating blades of the scarifier are best for smaller and medium-sized gardens, which makes it easy to maintain and use. You will find this easy-to-use scarifier impossible to miss because of its modest size, and because of this, we believe it to be the finest option for most people.

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