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Tropicals: Your Questions

 

Which houseplants should I choose for a hot, sunny area in my house?

Direct sunlight can cause damage to many house plants. Choose thick-leaved plants such as jade plants, aloe vera, and a wide variety of cacti all of which tolerate sun.

 

Which houseplants should I choose for an area with low light?

Low light is referred as an area that receives little or no sunlight, such as north facing windows. Many plants such as peace lily and chinese evergreen will do well.

 

How do I get my hibiscus to re-flower?

From spring to fall provide direct sunlight and feed with a fertilizer such as 15-30-15.

 

When and how should I repot my houseplants?

Spring is the best time to repot as plants are starting to grow. Choose a container up to 1 in. (5 cm) in diameter larger (with drainage holes). Use a good all purpose potting soil.

 

Small black flies appear to be around my plants. What are they? How should I treat them?

The fungus gnat larvae begins its life in the top layer of soil, feeding on dead organic matter, and then develop into a small black fly. The best way to rid your plant of these pests is to stop watering as much. If this does not work apply predatory mites (Hypoapsis Mites - more info in the Pests and Problems section) to your plants. Be sure to follow the instructions on the label.

 

What fertilizer should I use for my plants?

An all-purpose fertilizer such as 20-20-20 or 15-30-15 is appropriate for all indoor plants. The best time to fertilize is during the active growing season which is spring through fall.

 

Which plants “clean the air”?

Not only do plants create atmosphere in our homes, they also help purify the air. Some plants that are proven to be effective are: spider plant, pot mum, peace lily, dragon tree and gerbera daisy.

 

Can I take cuttings from my plants?

There are several ways to start new plants from your existing ones. Taking cuttings, root division and air layering can all be tried depending on the type of plant.

 

How often should I water my plants? What are the best ways to water my plants?

Many factors influence the water needs of plants, including light, temperature, size of pot and type of plant. Make sure to know your plants’ needs and water thoroughly then allow the soil to become as dry as that type of plant can tolerate.

 

What are the common pests I should watch for on my plants?

Some common indoor pests include spider mite, aphids, scale and whitefly which are generally located on leaves and stems. A thorough inspection when watering your plants will keep problems to a minimum.

 

Which common tropicals are poisonous?

The main poisonous houseplants are anthurium, cyclamen tubers, dieffenbachia, english ivy, hydrangea, mistletoe, and oleander among others. For further information check the Canadian poisonous plants information system website at: http://sis.Agr.Gc.Ca/pls/pp/poison?P_x=px or call the 24 hour Calgary emergency poison control hotline at 403-670-1414.