Container gardening continues to grow in popularity every year. Growing flower bulbs and perennials in containers is a great solution for gardeners with limited space. It's also a great way to brighten outdoor spaces such as porches, decks and patios. Some flowering plants are more suitable than others for growing in containers. Often, they may be shorter with more compact habits. When growing flowers in containers, make sure that your containers have adequate drainage. Most plants don't like to sit in water. Some factors to consider when buying flower bulbs and perennials for sale online are their sunlight requirements, mature height, flower color and form, and bloom time.