Low light for long periods of time will cause new growth to be smaller than normal. Also, inadequate light may cause the bottom leaves to yellow. Don't fret about that, though. Water your Philodendrons thoroughly and allow the soil to dry out between waterings. Feed you plant with a liquid fertilizer in spring and again in mid summer.
Philodendrons like to vine but they can be trimmed and trained on a poll or small trellis.
They come in many different leaf shades including white, green, yellow and purple and many combinations of those. They work well in container gardens and in hanging baskets. Mist the plant frequently to promote larger, shiny leaves. Philodendron roots like to be a little cramped in the pots. They grow best that way.