It’s Still Just Dirt, The Tillsonburg News – January 2017
by Angela Lassam

It is winter and we cocoon ourselves in our homes and only have our houseplants to add some green to our daily life. Have you ever thought you were actually doing yourself and the family a favour? Many plants that we normally keep in our homes are natural air cleaners and are easy to purchase even in our supermarkets.

The most common plants are the Spider plant, Weeping Fig (Ficus), Boston Fern, Bamboo Palm, Aloe Vera, Snake Plant, Dracaena and similar indoor plants. Flowering plants are Chrysanthemum, Gerbera Daisy and Peace Lily. They all absorb the pollutants (VOCs – volatile organic compounds) that can be found in our homes from the outgassing of many things around us daily.

Plants absorb particles in the air by taking in carbon dioxide and process it into oxygen through photosynthesis. Also the microorganisms found in potting soil are responsible for some of the purifying. An added bonus is that plant presence is reputed to lower blood pressure and stress.

Formaldehyde is the one that we all know and can be found in most manmade wood products, furniture and even fabrics used for bedding and drapes. We only remember the banned insulation which caused health problems to many people. As a matter of interest formaldehyde is found in many other common products that we use daily but we must remember the levels to cause problems have to be above .03 ppm to be of concern. For great reading and more information http://greatist.com/connect/houseplants-that-clean-air . Also if you are interested in learning more about formaldehyde look at https://branchbasics.com/blog/2015/04/23-sources-of-formaldehyde-to-remove.

NASA studies on indoor pollution recommend 15 to 18 plants in 6 to 8-inch- diameter containers to clean the air in an average 1,800 square foot house. That is approximately one plant per 100 square feet of floor space. This may sound like a lot but a basket of a variety of these will definitely give us a healthier environment.

It does not matter whether the plants in our home come in this category as any plant growing gives us a show of life and lifts one’s spirits. Flowering plants also add colour during the winter months.

One of the most popular flowering plants in most homes is the African violet which comes in many colours and flower patterns both frilly, plain, single or double. They can be propagated from a single leaf using the recommended potting soil for African violets.

Problems arise when caring for them due to watering and fertilizing. Water should be at room temperature maybe let it sit for a while. The plant should only be watered every two weeks or when dry to touch on the top of the pot. The best way to water them is to sit in a bowl of warm water and allow it to wick up to the roots. The water may have liquid fertilizer generally recommended for African violets added to it (less is better than overdoing it). To repot the plants always use an open free draining soil and do not press out the air in the mix as the roots which are fine and hairy like the air. Lastly they need light to flower so a sunny spot is ideal. A wilting plant may have Mealy Bugs eating its roots so washing the roots and repotting in new soil may save it. More reading on www.africanvioletsforeveryone.net

I hope this will help those members who enjoy this flower and will take some photos to submit to the Horticultural Society’s photo competition in September.

The next meeting for the Tillsonburg Horticultural Society is on February 7th @ 7.30pm in the Seniors Centre Auditorium, Tillsonburg Community Complex. The presentation this month will be Pruning given by Natasha Collins, a landscape architect and arborist new to Tillsonburg.

Members – just a reminder that renewals are due. Non-members $2 per meeting or sign-up at any meeting. Everyone welcome.

For information about the Tillsonburg Horticultural Society visit tillsonburghorticultural.ca online