By Ava Green

Usually, by the time February or March rolls around, I’m pretty tired of the health crazes like extreme diets and exercise plans I’ve been trying for the fifth year in a row. This year, let’s take a look at something that naturally supports our good health, both mental and physical. It’s time to stop and “smell the flowers,” so to speak.

Mental and Physical Health

Many gardeners already realize this, but studies are showing that simply seeing greenery can benefit our mental health. Whether it's a walk in the woods or a handful of houseplants, seeing green leaves makes a difference for humans! Research shows that it helps boost our mood and improve how we get along with people. Who doesn’t need a mood booster during cold, dark days? And getting along with people, well, the world just needs more of that, too, doesn’t it?

You may also already know that tending to plants reduces stress, but did you know that science is proving it? PubMed published a study stating:

"Interaction with indoor plants may reduce psychological and physiological stress by suppressing autonomic nervous system activity in young adults: a randomized crossover study."

This isn’t the common thinking about working outside in the garden increasing physical strength and stamina. It’s a study that examines our autonomic nervous system, the one responsible for automatic and essential bodily functions we don’t even think about, like breathing. The study compared participants performing two tasks: one on a computer and the other doing plant transplanting. The results suggest that interaction with plants indeed reduce stress without us even thinking about it! No task that requires willpower, just daily tending to plants like transplanting, watering, dusting, pruning, or turning the pots to get sun on the flipside.

So plants boost our mood, improve interactions with others and physically reduce our stress levels without us even trying. It’s no wonder we just feel better when we’re around plants.

Air Quality

Research also shows that indoor air pollution is often worse than outdoor air pollution. VOCs (Volatile Organic Compounds) from washing detergents, paint, furnishings, and building materials, as well as bacteria, fungal spores, and dust, negatively affect human health.

Fresh air can counter the impact of indoor pollutants, but often it’s too cold to open the windows in the middle of winter. When you can’t let fresh air into the house, indoor plants will help. We know that growing trees outdoors has a massive impact on air quality and the health of the planet, and inside our home, tropical plants contribute in the same way. The contribution of each type of plant varies, so having a variety is a very good idea.

What to Grow

Here’s a list of easy-to-grow, green indoor plants that Eising’s resident tropical plant expert, Courtney, and the UK’s Royal Horticultural Society (RHS) recommend:

Aglaonema ‘Silver Queen’ (Chinese evergreen ‘Silver Queen’)

Aspidistra elatior (common Aspidistra, Cast Iron plant)

Chamaedorea elegans (Parlour Palm)

Chamaedorea seifrizii (Bamboo Palm)

Chlorophytum comosum (Spider Plant)

Crassula ovata (syn. Crassula portulacea) (Jade plant, Jade tree)

Dracaena fragrans ‘Janet Craig’ (Dragon Plant)

Dieffenbachia ‘Tropic Snow’ (v) (Dumb Cane)

Dracaena marginata (v) (Madagascar dragon tree)

Epipremnum aureum and ‘Marble Queen’

Ferns - many types

Ficus elastica (Rubber tree, Rubber plant)

Hedera helix (English ivy, common ivy)

Howea forsteriana (Flat Palm, Kentia palm)

Rhapis excelsa (Bamboo Palm, Lady Palm)

Sansevieria (Snake Plant) - many types

Spathiphyllum sp. (Peace Lily)

Syngonium podophyllum (Nephthytis)

Zamioculcas zamiifolia (ZZ plant, fern arum)

Is there a downside to having houseplants? Yes, if you have small children or pets, be mindful of the plants that can be toxic if ingested (see resources listed below).

While many of us in Ontario focus on “nice” weather and getting outside to garden, it’s pretty clear that our indoor plants do much of the heavy lifting to improve our health through the cooler seasons. Even if you don’t have a “green thumb”, it’s worth giving tropical, indoor houseplants their well-deserved space in our homes, hospitals, offices, nursing homes, classrooms, restaurants…or any indoor space!

Resources:

PubMed study on indoor plants and their impact on human stress - https://pmc.ncbi.nlm.nih.gov/articles/PMC4419447/

Sally Augustin, PhD, Environmental Psychologist - https://www.psychologytoday.com/ca/blog/people-places-and-things/201802/benefits-of-the-indoor-plant

RHS - https://www.rhs.org.uk/plants/types/houseplants/for-human-health

For a list of indoor plants and the VOCs they have the potential to reduce, PubMed review article by Dela Cruz et al., 2014 - https://pubmed.ncbi.nlm.nih.gov/25056742/

PETAs list of plants that are safe for pets: https://www.peta.org/living/humane-home/animal-friendly-houseplants/?utm_source=PETA::Google&utm_medium=Ad&utm_campaign=0422::veg::PETA::Google::SEA-Vegan-Grant::::searchad&gad_source=1&gad_campaignid=96533821&gbraid=0AAAAADu2DAt3SGF9vPRkHJqkNw-eZ6kEH&gclid=CjwKCAiAvaLLBhBFEiwAYCNTf9nyavbUnefHx0FaUekq4HZyXPrIwYhnJqgnu_g_TPea3nExhT-jOhoCqLUQAvD_BwE

RHS list of safest plants for children: https://www.rhs.org.uk/plants/types/houseplants/houseplants-for-children

By: Dave Zeldon and Ely Schweyer

Bearing in mind that a lawn is a very unnatural situation in that we are trying to sustain a large area with very little plant diversity (monoculture), in the eye of the homeowner, lawns may remain an important part of the domestic landscape! As well as in very necessary areas like tile beds, paths, roadsides, and recreational areas, lawns provide a background that enhances the overall effect of the home and the various gardens and landscape features.

   From nematodes to dog pee spots, the following tips will help you to maintain a healthy lawn naturally.

Mowing

Of all the cultural practices, mowing exerts the greatest influence on growth, development, and ease of management. By keeping the grass blade height between 6 & 8 cm (2.5 to 3 inches) high you'll be able to produce a more competitive lawn against young and germinating weeds.

Grass Species Selection

Seed mixtures with Titanium Tall Fescue have shown to be more drought, disease, and insect resistant than many other lawn grasses such as the traditional Kentucky bluegrasses. Tall fescue roots penetrate deeper into the soil providing better regrowth and wear tolerance, making it ideal for heavy foot traffic areas and recreational areas.

Carried by Eising Garden Centre

Time of Sowing

The best time to establish a lawn from seed is late summer and early fall (mid-August to mid-September) in southern Ontario. During this period, soil moisture and temperature conditions are optimal for germination and establishment. There is also less competition from germinating weeds in the fall. Make sure that seeding is done early in the fall so that the grass is well established before winter. The plants are then well rooted and more drought- and heat-tolerant the following summer.

Seed the shady areas in the fall for best results. Trees will have shed their leaves by then, so plenty of light is available for the new growth. The grass also gets off to an early start in the spring before the trees leaf out.

Spring seeding should be done as soon as the ground can be worked. Slow, irregular germination may result if the seed is sown when the soil is too cold and damp. (Soil Temp. around 15oC is ideal and there is also strong competition from germinating weeds during the spring. When practical, wait until weed seeds germinate, work the land to kill them and then sow the grass seed. ) If you choose to plant your new lawn in the spring, begin just as soon as the soil is dry enough to work, preferably mid-April to mid-May. This will give your new grass time to get well established before the hot, dry weather sets in.

Fall is often a better time to start your lawn, from mid-August to the end of September. Your seedbed is less likely to dry out at this time of year, and the grass should be well established before winter.

Watering

Your typical lawn needs about 2.5 cm (one inch) of water per week through either rain or irrigation. If irrigating, water in the morning as more will be absorbed as opposed to being lost to evaporation in the sun and the warmer temperatures later in the day.

Fertilization

Lawns require relatively large amounts of nitrogen-based fertilizers which should be applied several times during the growing season. Since lawn clippings are high in nutrients, especially nitrogen, much of your initial nitrogen fertilizer investment may be recycled back into your lawn! A fertilizer with a nitrogen, phosphorus, and potassium ratio of 4:1:2 (e.g., 20-5-10) is normally the best in most situations. It should be noted though, that a soil nutrient test can accurately determine the actual needs of your lawn including lime if the pH is too low.

(Lawn Liming Rate: 20-50 lbs/1000 ft2)

Carried by Eising Garden Centre

Corn Gluten

An application of this product early in the spring and then later on in the summer will inhibit the growth of weeds from germinating seeds especially the annual problem, crabgrass. Established weeds though have to be dug out by hand.

Dog Pee Spots

There is a misconception that the pH level of your dog’s pee is leaving those unsightly spots in your lawn, when it is in fact the high concentration of nitrogen and salts being introduced into the soil. To prevent this, should you see your four-legged friend raising its leg or popping a squat, give that spot a good watering to dilute the minerals. In addition to this, ensuring your dog is well hydrated will help to water down their urine. However, your lawn may already have several severe yellow and bald patches. You may opt to resod or reseed the area, but the soil is what’s affected. Before giving up altogether and adding a scree to the affected area, Eising Greenhouse and Garden Centre offers a fertilizer to help balance and remedy your dog pee spots!

Carried by Eising Garden Centre

Thatch Control

Thatch is a layer of dead leaves, stems and roots that intermingle with the living plants above the soil surface. A one-inch layer of thatch is desirable as it has a cushioning effect against compaction and an insulating effect in cold weather. De-thatching a lawn is an extreme measure that may be considered if the drainage is poor. Lawn aeration may be required as well as the lawn and the soil below must establish a drainage pattern.

Nematodes - Aid Against Japanese Beetles and More!

If the Japanese Beetle has been destroying certain plants in your landscape plantings or their grubs have been feeding on the roots of your lawn, causing unsightly brown patches maybe it's time to use Mother Nature's secret weapon: Beneficial Nematodes.

   Beneficial Nematodes are a natural way to control Japanese Beetle grubs and over some 200 species other pest insects in your lawn while having no detrimental effect on Ladybugs, Earthworms, and other helpful beneficial insects.

   Nematodes are naturally occurring microscopic worms of the soil and are used to control soil pest insects in their larvae or grub stages while not posing any health or environmental risks to humans or animals. The beneficial Nematodes enter the JB larva via mouth, anus, or respiratory openings and begins to feed. This causes specific bacteria to emerge from the intestinal tract of the Nematode, spreading inside the insect and multiply very rapidly; the bacteria convert host tissue into products which can easily be taken up by the Nematodes, ceasing the soil dwelling pest insect within a few days. Beneficial Nematodes are effective against not only the larval or grub stage of Japanese Beetles, but the Northern Masked Chafer, European Chafer, Rose Chafer, Crane Fly larvae (Leather Jackets), Oriental Beetles, and June Beetles.

   The nematode product you purchase should contain two genera: Steinernema and Heterorhabditis for better grub control.

   Beneficial Nematodes are very easy to use. Mix with water and spray on the lawn with a water-can, irrigation system, or a hose-end sprayer. Most homeowners spray at a rate of 10 million nematodes per 600 square feet on grub damaged lawns. After an application, keep the soil moist during the first two weeks for the nematodes to get established.

   In Ontario, there are two windows of opportunity to apply Beneficial Nematodes to be effective against the JB grub stage.

   The first application should be in May as the soil warms up and then again at the end of August or the first two weeks of September as the JB are hatching into their first larval stage.

   We hope these tips help to ensure your healthiest lawn! For more information – and lawncare products - visit Eising Greenhouse and Garden Centre! 🌾