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
Whether you’re just starting to explore the world of unusual plants, or you’re already an avid collector, there are a wide array of weird and wonderful houseplants to satisfy your quest for something a little different.
Tropical plants and houseplants come in every shape, size, texture, and colour imaginable, plus some you would never have imagined!
Exotic houseplants often have striking appearances which make them valuable as eye-catching focal points in your decor. The range of distinctive features can also make them a natural choice to express your personality and style.
Like your more common houseplants, unusual varieties can also contribute to indoor air quality, as well as the overall benefits to your well-being that come with having living plants in the home.
The unique characteristics of rare or unusual houseplants often have interesting backgrounds. Learning about their natural habitats and origins only makes them more intriguing!
Here are some wild and wonderful houseplants that will add interesting foliage, blooms, or both to your home right now!
Pitcher Plant
A rare and exotic group of tropical plants with pitcher-shaped leaves that are carnivorous. That’s right, they eat insects to obtain the nutrients they need! This means that with most varieties you do not have to fertilize them. Most are happy catching a bug or two for food.
Keep this plant from drying out completely between waterings by temporarily placing it in a water-filled tray to absorb moisture through the roots. Remove the pot from the tray once it’s saturated, and allow the excess water to drain away. Pitcher plants prefer pure, mineral-free water like rainwater. No tap water for these precious prima donnas!
One Pitcher Plant variety that we love is Miranda (aka Nepenthes x Miranda). From tropical Malaysia, it is a very large pitcher plant with attractive spotted pitchers that can be over 18” wide when fully mature. Because of its size, it is quite effective at catching larger insects like wasps. It’s easy to grow, either in a sunny window or outdoors (only in the summer) and is heat tolerant but not drought tolerant.
ZZ Plants
Native to East Africa, Zamioculcas zamiifolia is also known as the houseplant ZZ, or Zanzibar Gem. While the name is complicated, this plant is not fussy at all, making it great for beginners! ZZ will thrive in almost any lighting conditions except direct sunlight, plus it is drought tolerant so you can allow it to dry out between waterings.
The biggest attraction to the Zanzibar Gem though is its thick, dark green and glossy leaves that almost look fake! If that sounds intriguing, hang on. There’s more!
Black Raven ZZ is a new variation with stunningly dramatic black-toned leaves. Unique to be sure, but luckily with the same low care requirements!
Cactus
There are so many weird and wonderful varieties of cacti that come in all shapes and sizes! These sun-loving plants require little care, but here are a couple of tips that will keep them looking sharp. (Ouch!).
- Give their pot a little turn each day so that your plant is eventually exposed to light on all sides. This saves you from having a lopsided cactus.
- Water is essential but monitor how often your cacti need it. In the winter, when they’re dormant, they will need less water. Let the soil dry out completely between waterings. Using room-temperature rainwater is ideal. Tap water contains minerals which can disrupt the flow of nutrients to the cactus. Water it well, then allow the excess moisture to drain away rather than pool under the plant. Cacti don’t necessarily need fertilizer, but they do welcome a feeding during their summer growing season. We can help you choose a fertilizer that’s been specially formulated for cactus to ensure the proper nutrient ratio.
A few varieties of cacti that we love are:
- Monkey Tail (Hildewintera colademonosis)
- Boobie (Myrtillocactus Geometrizans Fukurokuryuzinboku)
- Spiral (Cereus forbesii Spiralis)
With their evocative names and exotic shapes, cacti are so much fun to grow! And don’t be surprised if the kids want to have a few to call their own.
Stop by Eising Greenhouses and see what we have in store. While you’re here, say hello to Courtney who is always happy to talk about unusual houseplants!