A flower garden adds a great deal of variety and beauty to the roof garden. Many people find that laying out flower gardens is a very rewarding task. And, while it is possible to create a very attractive flower garden without planning it out first, it is much more efficient, in the way of saving time and money, to make a plan for what you would like in your flower garden, and to have an idea of where you might like some of the different flowers.

Another, even more recent trend is the "flower garden in a box", where the entire design of a flower garden is prepackaged, with separate packets of each kind of flower, and a careful layout to be followed to create the proposed pattern of color in the garden-to-be

The considerations that have to be done are:-

Planning out the flower garden:- How many annuals and how many perennials you want. Annuals last only one growing season, and therefore have to be replanted each year. Perennials appear yearly on their own.

Position of the flowering plants:- To check the place of the flowers, taking into consideration the comparative heights of the plants, what time of the year they bloom, and what colors you will use. These things all contribute to an aesthetically pleasing look to your flower garden.

Time of planting:- Also to take into consideration when planning flower garden: climate and sun exposure. Make sure that all of the plant you choose for your garden will flourish in your region, and that your garden is placed in a location that will allow the flowers to receive a proper amount of light.

Preparing flower bed:- Mark the dimensions of proposed roof garden carefully. Using a garden hose to mark the boundaries is advisable, as it is heavy and will stay in place, but it also provides the flexibility needed to tweak the proposed shape of your garden.