It may sound obvious enough, but choosing the most advantageous site on your property is a very important determinant in the eventual success of your flower garden. The most important factors to consider in this regard are the amount of average daily sunlight, the relative quality of the soil, and the accessibility to a water source like a hose or a sprinkler.
Though many flowers do tolerate some filtered shade – and a few actually thrive in it - the vast majority are definitely sun-lovers and will likely demonstrate the strongest bloom where exposure is greatest. Therefore, the general rule of thumb when considering the optimum planting site on your property is “the more sun the better”. This naturally means that areas with little or no tree coverage and as little obstruction from any structure such as a house, garage, or barn are best.
Lastly, when choosing the best site for your seed installation, the availability of a steady watering source is helpful, but not usually necessary. In most regions and during most seasons, natural rainfall will be sufficient to provide the water necessary for a successful bloom. However, if you live in a particularly arid region, are planting during drier months, or are simply experiencing prolonged drought, it will definitely be to your advantage to water your site every other day or so for the first few weeks after planting until root growth is established.