Growing Annuals Indoors: Which Ones Thrive as Houseplants?

Best Annuals for Indoor Culture

Impatiens are the easiest—flower in low light. Morning glories need very bright light. Vinca and dwarf phlox are unlikely to thrive indoors.

Light Requirements for Flowering

South or east windows provide the best light. Supplemental grow lights improve results.

Humidity and Watering Strategies

Place pots on trays of pebbles with water to raise humidity. Keep soil moderately dry between waterings in low light.

Alternative Flowering Houseplants

Consider African violets, begonias, or streptocarpus for reliable indoor color.