Impatiens

Photo By National Garden Bureau

Impatiens

If you can provide impatiens with enough humidity, these pretty annuals will add color to your windowsill garden for weeks. While they tolerate the average home temperature, they need at least 50% humidity. Group them with other plants, grow them in a bathroom or near the kitchen sink, or sit their pots in shallow trays filled with pebbles and a little water to give them the moisture they need. Another option: mist your impatiens daily.