It’s time to take a close look at all my houseplants and take stock of how they are doing.
Look carefully at the leaves, if there are yellow or brown foliage, remove them. Any part of a plant that’s looking worse for wear should be cut off and put in the compost (you do compost don’t you?). Look at the plants closely. If there are discolored leaves, maybe a purple tint, that’s a clue they are not getting what they need, so hit them with some organic fertilizer. There are a couple ways to do that. One is to use a liquid fertilizer like fish emulsion, but I also love a granular type from TerraCycle.
If the tips of the leaves are turning brown there might be a salt build up from chemical fertilizers. Be sure your pot has good drainage to flush those salts out.
The leaves of houseplants are more important than the flowers — they need to be kept clean so they can stay healthy. My house is old and often dusty, so I let the houseplants dry out and then place them all in the bathtub and run the shower over them once or twice a year. This is also a great way to flush out the soil. With plants that have big sturdy leaves, I wipe them down as they go back near the window.
Most houseplants should be kept on the dry side, over watering and over fertilizing kills them.
It’s great to have something to take care of inside during the winter, and neglect is actually a good thing. As the days get longer, the birds begin to sing, the air smell different and it won’t be long until the crocus poke through the soil. When that happens there’s nothing left to stop us.
I’ve written about clean air plants in the Post-Gazette before. I also produced this video, it’s an interview with Kelly Ogrodnik, former Phipps’ sustainable design and programs manager. She’s done a lot of research about what’s in our air and how plants can filter the bad stuff.
Here’s a list of plants grown indoors that will help take toxins out of our indoor air-
English Ivy (Hedera helix)
Spider plant (Chlorophytum comosum)
Golden pothos (Scindapsus aures or Epipremnum aureum)
Peace lily (Spathiphyllum ‘Mauna Loa’)
Chinese evergreen (Aglaonema modestum)
Bamboo palm (Chamaedorea sefritzii)
Snake plant (Sansevieria trifasciata‘Laurentii’)
Heartleaf philodendron (Philodendron oxycardium, syn. Philodendron cordatum)
Selloum philodendron (Philodendron bipinnatifidum, syn. Philodendron selloum)
Elephant ear philodendron (Philodendron domesticum)
Red-edged dracaena (Dracaena marginata)
Cornstalk dracaena (Dracaena fragans ‘Massangeana’)
Janet Craig dracaena (Dracaena deremensis ‘Janet Craig’)
Warneck dracaena (Dracaena deremensis ‘Warneckii’)
Weeping Fig (Ficus benjamina)
Gerbera Daisy (Gerbera jamesonii)
Pot Mum (Chrysantheium morifolium)
Rubber Plant (Ficus elastica)