Growing biennials takes patience. The first year is very slow and typically does not produce many flowers, but rather the base of the flower. Once you have decided to grow biennials, it would be a good idea to plant more biennial seeds year after year, that way when the first ones die, there will be a full garden of new ones the next year.
When planting your biennials, be sure to plan ahead and plant them in an area where they will receive full sunlight and will not be flooded. In order to grow healthy biennials, they need almost the same conditions as annuals. You should start them indoors first. Once they are established and there is no chance of frost, you can then plant your biennials outside in your garden.
Caring For Biennial Flowers
Biennial flowers do their best with light watering. These beautiful flowers need very rich soil so it is recommended that you fertilize the garden every six weeks or so. In doing this, your biennials will get the minerals it requires to bloom into their full glory. These flowers are very hardy and will do well in colder climates as well. When they are growing in colder climates though, the lifespan speeds up. If the weather is extreme, the lifespan speeds up almost enough to be considered annuals!
Some herbs are biennials. A couple examples of these are carrot, sage and parsley. When planting these, much care needs to be taken a pesticides are unacceptable if you plan on growing these for your kitchen. These biennials are unique. Since the first year only the main part of the plant comes up instead of the flowers, this is when they will be harvested. If left for another year, they will flower.
Planning Your Garden
Instead of going all Willy nilly, plan ahead and do a little research. Some biennials grow very tall, for example, the Hollyhocks. Some spread, these you will want in the front. You want the colors to blend nicely as well. Research the biennial flowers you want to plant and figure out exactly where you want to place them in order to have a garden that stands out in its beauty and colors. Also, another good thing to research is when the biennials will typically bloom. Some bloom earlier than others, some late. With good planning you can have blooms nearly all year round.