In the case of deciding when to aerate a garden, it is true to say that timing is every part if you wish to get the perfect outcomes.
As we’ll go on to elucidate in additional element, early autumn is a first-rate time to finish this process for plenty of causes. Doing it at the moment of yr will give your garden an actual enhance by letting in additional air for more healthy roots, enhancing drainage to keep away from waterlogging points, and leading to quicker uptake of vitamins.
So in case your patch of grass does not measure up and you’ll see compacted areas of skinny or naked grass, or your garden is roofed in weeds, understanding tips on how to aerate a garden in addition to the perfect time to do it’s a nice first step in getting your grass again to its finest, as our consultants clarify.
When is the perfect time to aerate a garden?
In primary phrases, aerating entails piercing a number of holes in your garden to spice up the circulation of air and enhance drainage.
“Aerating is likely one of the most dear garden care duties, however many owners are uncertain when to do it,” says Jonathan Davis, lawncare knowledgeable at Lawnsmith. “Aerate when the grass is rising strongly and the soil is barely moist. For many UK lawns, the prime window is mid-September to late October, when the summer time stress in your garden has eased, the soil nonetheless holds heat, and restoration is quick.”
When you miss out on aerating a garden throughout your autumn garden care, a dependable second window is mid-March to late April, as soon as development restarts and the bottom is workable, advises Jonathan. The soil can be prone to be moist in spring too. It’s possible you’ll need to contemplate overseeding a garden at the moment of yr too.
As for the incorrect time of yr to aerate a garden? When you aerate a garden in the summertime when the bottom is sunbaked it’ll nonetheless cut back compaction however could not essentially be so useful to the expansion of the roots, particularly if the climate is dry because the roots want water to thrive. It’s finest to keep away from aerating in winter too, because the grass development slows proper down and restoration might be poor.

Jonathan Davis is the Garden Care Skilled at Lawnsmith, the place he shares recommendation to assist householders get pleasure from greener, more healthy lawns. Obsessed with the concept that a garden needs to be each stunning and sensible, Jonathan champions lawns as areas for play, summer time barbecues, and on a regular basis enjoyment.
This rolling garden aerator lets air, water and vitamins attain grass roots for a greener, extra stunning garden. The sturdy wheels roll simply over any turf, and its metallic spikes aerate the garden deeply.
These tremendous secure aeration ‘footwear’ with metallic spikes match simply over your personal boots or footwear, and have adjustable fasteners to get the best match. This set comes with a useful stainless-steel shovel too.
This five-prong garden aerator has an epoxy-coated head for improved resistance to rust, scratches, humidity and alkalis within the soil. Use it to scale back compaction within the soil and enhance drainage.
Why timing is so essential for garden aeration
Select the best timing in your garden care calendar is essential as it’ll guarantee your garden bounces again shortly, grows stronger and stays wholesome all yr spherical.
“These timings matter as a result of aeration is a managed disturbance,” explains Jonathan Davis. “You might be creating 1000’s of small channels that relieve compaction, permitting air, water and vitamins to achieve the roots.
“When you aerate whereas the garden is actively rising, roots can shortly occupy these channels, the sward [the technical term for an expanse of short grass] thickens, and resilience improves earlier than the subsequent bout of climate.”
Throughout winter, nevertheless, grass restoration is way slower, and aeration can invite garden weeds or moss development. In the meantime in durations of summer time drought, the grass is already below stress, and aeration can set it again.
Assess the soil and climate circumstances
When you’re mulling over when to aerate a garden among the best items of recommendation you possibly can tackle board is to work with the climate.
“Select a day after regular rain, or water the night earlier than so the soil is pliable relatively than baked onerous or waterlogged,” advises Jonathan Davis. “Keep away from frozen or saturated circumstances from December via to February, and keep away from aerating in heatwaves in July and August too.” Stressing your garden by finishing up too many upkeep duties in sizzling climate is a typical summer time garden care mistake.
As a common rule, in line with Jonathan, UK lawns reply nicely to aeration when soil temperatures are persistently above 8 to 10 levels in spring and autumn. “Heavy clay and high-traffic lawns profit from annual aeration, whereas lighter soils could solely require it every year, both in autumn or spring.”
Time aeration nicely and your garden will profit from deeper roots, higher winter drainage and stronger development for the next season.
Clues it is the best time to aerate your garden
After a protracted summer time of use and heavy site visitors throughout it resulting in soil compaction your grass can die. Aeration works as a renewal course of that can assist rejuvenate your garden and get it again to its finest. If the soil has turn out to be compacted aerating will assist loosen the soil in order that new grass can develop.
“When you discover that you just’re getting areas of water pooling on the garden after rainfall, or the garden is turning into boggy that is normally an indication to aerate,” says garden care specialist Chrissie Handley from On-line Turf. “Water might be struggling to empty from the garden because of the compacted soil, so encouraging airflow and enhancing drainage will assist hold your garden good and wholesome.”
One of the best time to aerate a garden is when the soil is ‘malleable’. That is when temperatures are gentle and ideally barely moist. “You may’t aerate a frozen winter garden, or an excellent dry garden in a heatwave as the bottom might be too stiff and unworkable,” explains Chrissie.
“The rule is to spike solely when compaction is apparent,” says garden knowledgeable David Hessayon, creator of the best-selling ebook The Garden Skilled, out there at Amazon. “Do the work in early autumn, and carry it out every year in case you use a backyard fork and not more than as soon as each three years in case you use a hole tine fork.”

Chrissie Handley is a garden care specialist working for On-line Turf. With intensive experience in turf-laying, grass upkeep and seasonal gardening recommendation, she is devoted to serving to gardening fans obtain lush, wholesome lawns year-round.
Including garden aerating to your listing of September backyard jobs will enable you carry on prime of your garden care and guarantee it is in the very best situation earlier than the worst of the winter climate arrives.
It is also finest to aerate earlier than planting bulbs in a garden, however you should definitely give your turf time to settle earlier than getting the dibber out.