These sturdy, Philodendron selloums have been gratefully owned by my brother for about twenty years. Since I'm writing this in January, they are indoors now, but I got a quick picture of them this summer. I saw them today and they are flourishing. Houseplants love to be outside when it's warm enough and if they can get some rain to clean their leaves and flush the soil, all the better. Although a touch of sun outdoors is ok, a mostly shady spot in your yard is the best place for most houseplants. Even if they prefer a sunny window indoors, mostly shade outdoors is best.
As the philodendron matures it will develop a stout trunk-like stem. as you can see in the picture below. Their magnificent leaves will look their best if they are kept in very bright indirect light or get a little direct sun, preferably morning sun. Full afternoon sun from a southern or western exposure is probably too much.
The hardy Philodendron family includes many species and varieties that should be readily available at your garden center of florist. They are among the easiest of houseplants to grow.
- Bright indirect light or some direct sun. Full morning sun is good but only an hour or so of afternoon sun would be recommended.
- Water thoroughly when the top of the soil is dry. A plant in a 10" (25cm) diameter pot, like the one in this picture, could use up to 2 quarts (or almost 2 liters of water).
- Fertilize regularly.
- Clean the leaves occasionally. A feather duster works well as does an occasional shower with the garden hose or in the bathtub.