Aerating is the process in which plugs, or cores, are removed from the soil. This increases the soils air supply and can aid the plants respiratory actions. Carefully timed in the spring, just as the grasses are starting to grow roots, aerating can be very beneficial to an urban lawn. Primarily if the soil is compacted, or low in beneficial microorganisms.
Having said that, cutting cores out of the soil does deliberate damage to the root systems of the plants. If not kept in check, over-aerating or aerating too often, with big heavy machines, will have a detrimental effect on the soil. Really, aerating should be an occasional thing to relieve compaction. It can also be a means to inoculate the soil with beneficial microorganisms. Annual or semi-annual aerating is not only unnecessary, but will damage the soil in the long run.
At Eat MY Shrubs, we recommend to aerate in the early spring. Only if the soil really needs it. While the holes are open, top-dress with a good quality compost, or a compost soil mix, compost tea, or effective microorganisms.
*Special note* compost tea and effective microorganisms do not really like strong ultra violet rays. So, if going that route, best do it on a cloudy day, or late in the day. This will avoid killing everything you are adding to the soil, before they can take cover under the surface.
Power Raking
Power raking on the other hand, is not necessary and WILL damage your soil in a very short time. It is non-discriminate. The power rake tears up both dead and living plant material. By cutting, ripping, or generally disturbing living roots, it effectively kills more grass. Power raking begets more power raking. Don’t do it. If really necessary in a localized area of the lawn, a hand thatch rake can be used.
To much thatch in a lawn can be an issue as far as water and air getting to the soil. But, if there is an overgrowth of thatch in the lawn, that is telling us there is not enough microbial activity in the soil. The thatch on the soil surface, made up from dead plant material, should be broken down, eaten, and decomposed by these microbes and other small creatures. Therefore, returning all those nutrients back to the soil.
I recommend aerating in this scenario. While the holes are open, top-dress with a really good quality compost, and take every effort to ensure it gets into the holes. There are also specific microbes that you can add to your compost that especially consumes thatch. If you really wanted to go the extra step I would time it so that the final stages of cleaning up happen as a light rain starts.
Use a sprinkler that aerates the water as much as possible, and gives the water as much time in the air to allow the chlorine to escape.
If you are using a municipal water supply remember that chlorine will kill all the microorganisms in the compost.
Collect rainwater people! If for no other reason but to irrigate your property. You will be less likely to need aerating and power raking in the future
Even though there is STILL snow in the forecast and the ground is STILL frozen, I can’t help but look outside and see the trees starting to bud, and the Canada geese back on the river. Soon the robins will be picking worms out of the lawn. The bees will be buzzing around the windows, especially we start diffusing orange essential oils.
Lately, here in the Alberta foothills, the blanket of snow is starting to reveal the sleeping gardens that have been hiding for the past 7 months. As humans we get excited at the first sign of warm weather and want to be outside. Usually, the spring melt and thaw leaves behind debris and dust all over our lawn & garden spaces. To our eye, it’s messy and we want to clean it all up. To make our space look neat and inviting. All good things, but….
The warm days and freezing nights are good if you are collecting tree sap to make syrup. (Hello! New Brunswick!) If you are a bug however, sleeping soundly under a brush pile or cluster of leaves. Having the blanket taken off during a warm spring day, may have you believe it is time to get up and start looking for food. But, when the sun goes away and the temperature dips below freezing, you don’t stand a chance. Plus you are hungry because there is no food yet. No hope!
All the debris and leaf litter left behind by the fall and winter wind and snow, are homes and winter shelter for all of our tiny garden friends. We need these little beings for our plants to survive and thrive. Little beetles still hibernating for example. Even smaller, their eggs waiting to hatch in the spring warmth. All laying under that thin layer of leaves and twigs, and the first few inches of the soil. If we are too early in disturbing their protective layer, we risk killing a good number of beneficial microorganisms that are so important to our lawn & garden health.
Cabin Fever?
If we don’t rake the leaves or disturb the soil, what are we to do to keep from going crazy?
Here are a few spring lawn & garden tips and ideas:
Organize, Sharpen & Clean
It is good to keep your work area organized, and your tools clean through out the season. I am often to be reminded about things that were dull or broken at the end of the previous season, when I pull them out for the first use of the season. I then have to take time to sharpen or repair the tool before I can do what I was originally set out to do. If you take the opportunity of a warm day to sit outside and organize and clean all of your garden tools and storage spaces. When the actual fun of gardening gets rolling, you will be all set for whatever comes up.
Be sure to disinfect things as well, especially cutting or pruning equipment. Using a tea tree (Melaleuca) oil spray works well. By doing this early in the season you can catch any pests that have been snoozing in you garden equipment before they wake up.
Trade Shows & Courses
The timing is different, of course, depending on your location, and most things are still virtual. However; around this time of year a number of pre-garden season shows and courses begin to happen. Home & garden shows, spring markets, and specific classes geared to different aspects of land care. All great ways to spend weekend days when the weather starts to get nice and collect even more spring lawn & garden tips. Most of these things are inside also, so even if Mother Nature decides to remind you who is in charge that day. You can still enjoy the time. If it is a nice day, consider having lunch in a sunny corner. Experience a micro-climate of summer.
Check out your local horticultural society, or garden group to see what they have organized. Community newsletters and social media pages often will have information about markets as well.
Visit Garden Centers
Garden centers are some of the first places where it starts to feel like summer. As the days get warmer and longer, the greenhouses get fuller and fuller. (I can almost smell the clean air of a full greenhouse as I am typing.) They are usually up on the latest ideas and gadgets to make life easier in the garden. The staff can be very informative to figure out solutions or to give direction and more spring lawn & garden tips. So you can be sure of your success in the garden once you get home and start planting.
Start Plants Inside
If you have a sunny window and the space by it, having plants start their growing season inside can really give you a jump on the very short summer season. Another step would be a small greenhouse. One step further would be to add some sort of grow light, but a sunny window ledge can be enough. Especially if you are a small space gardener.
Different variety of plants require different things to get started. It is a good idea to research how long the plants you want to have take to germinate, and what other requirements they have. Some seeds need to be refrigerated before they will germinate! I know right…
Once the seeds germinate, the plants requirements will change. It is good to know this in advance because new sprouts are fragile and will die easily under the wrong conditions.
Prune Trees And Shrubs At Proper Times
This heading could be a post on it’s own. The bottom line is that not all trees should be pruned at the same time. And, it should not be just at our convenience. Pruning improperly, or at the wrong time, can leave the tree susceptible to pests and diseases, and unable to fight them off. Look at pruning as “tree surgery”. It should be done thoughtfully, and cleanly. Knowing what variety of trees you have on your property will allow you to ensure your trees are pruned at the right time of year for that tree. It may also help to spread out the cost of having all your trees pruned at the same time.
Having said all that. I must say, trees in general, never need to be pruned. In nature, in the forest, trees are not pruned and live healthy and strong for hundreds of years. In urban settings, trees are often pruned to allow access for humans, or for looks. Many times, the health of the tree is not taken into consideration, or is at most, an after thought. In many orchards, trees are pruned for production as well.
If a limb is not producing more energy than it is using, the tree will discard it. The thing to remember about trees is that their life span is slow. It may take a couple of years for the limb to actually fall, but it will. No help from us.
Plan, Stretch & Exercise
As a professional gardener, I can attest to some aching muscles and sore backs, especially at the beginning of the season. After spending the winter months hibernating, only coming out to clear snow really, my body is not conditioned for a day of kneeling and bending.
One of the best spring lawn & garden tips I can give is, spring clean-ups can be demanding, even if you are only doing your own. So, as the afternoons bring small bursts of warmth. Take the opportunity to go for a walk, or join a yoga class. Walk to a patio somewhere. Have a beverage and plan out what you are going to do once the spring growing season actually gets started.
Check out the Canadian Society for Organic Urban Land Care. Get involved in the movement! Click the logo to be taken to the website.
I have the privilege to sit on the board of directors of the Canadian Society for Organic Urban Land Care (SOUL).
I have been a member for a couple of years. Although the call was cut short due to technical issues. It made me think of this page from my website www.eatmyshrubs.com.
The term “organic” has a political aspect to it now. A buzz word of sorts. Therefore, I do not mean to get into a debate with people here. Good, better best is the something we say a lot in this house, especially when purchasing things.
What we all should ask ourselves when buying anything that claims to be “organic” is this.
What definition of organic does the manufacturer mean? (because it literally could be either of the following).
A chemical definition:
“relating to, or containing carbon compounds” (Miriam Webster)
A biological definition:
“of, relating to, or derived from living organisms” (Miriam Webster)
A cultural definition:
“an ecological management system that promotes and enhances biodiversity, biological cycles and soil geological activity… a holistic approach which emphasizes the importance of relationships between living organisms and their environment”. (SOUL Organic Land Care Standard).
When it comes to land care there is only one definition that matters. Some things are carbon based, most things are derived from living organisms, but the ecological management of your property is what matters.
