Select the right wildflower seed for your area.
The first thing to determine when selecting wildflowers is climate conditions and water needs. Some are perfectly adapted to hot, dry areas and work well in water-wise and low-maintenance landscapes. Others thrive in cooler climates and require supplemental irrigation to reach their full potential.
Consider perennial versus annual wildflowers.
Consider whether annual or perennial wildflowers are desired. Annuals will complete their lifespan during one growing season, while perennials will come back year after year. There are advantages and disadvantages to both types. While annuals will die at the end of the season, some will actually self-seed and come back year after year anyway. Annuals also give the gardener the option of redesigning their gardens each year, something many people enjoy doing. Perennials are great for people looking for a more permanent garden as these perennial-type wildflowers will grow back new each season, saving time and money. However, perennials tend to take longer to mature and may limit the flexibility of garden design.
Placement is the key to a beautiful wildflower garden.
Also be aware of placement when sowing wildflower seed. While most prefer full-sun, there are many that can handle part-sun/shade or even full-shade. Height can also be a factor in wildflower placement, so consider the mature size of the plant when planting seed.