Have a philodendron you love? Be gentle when repotting them. Evelyn J. asks: How often should a young catalpa tree be watered? It appeared stressed this last summer. The first year, new trees should ...

At times, Houseplants 101 turns its eye on plants that are more well-known for growing outdoors than indoors. One example is caladium, or elephant ear plants. Their large leaves make a wonderful show ...