A smooth, weed and vegetation-free planting bed is important for good seed-soil contact and prompt germination. Avoid seeding more than the recommended rate, as overseeding can result in crowded conditions the first year and poor establishment of perennials. Cover seeds lightly to protect them from drying out during germination, and to prevent them from being eaten by birds. Consistent moisture is important for 4-6 weeks after planting. We recommend that a soil test be performed when soil quality is unknown.  The best time to plant in your area depends on the climate and rainfall patterns, as well as the species you are planting. In cool climates, plant annuals, perennials or mixtures of annuals and perennials during Spring, or early Summer.  Best results will be obtained by planting on cleared ground. Remove existing vegetation to avoid competition from other plants.  Moisture All seeds, including wildflowers, need ample moisture to germinate and to develop into healthy seedlings. Best results will be obtained by soaking the planted areas thoroughly and maintaining consistent moisture for 4-6 weeks, and then gradually reducing waterings. Plant in the spring or before periods of anticipated rainfall In non-irrigated situations. Watering may be reduced depending on the climate and rainfall after seedlings are established. Weed Control Weed control is the biggest problem facing plant establishment, and one which has no easy solution. Weed seeds are present in many situations and lie dormant, but viable, for long periods. A weedy area converted to wildflowers will have a large reservoir of weed seeds in the soil, ready to germinate when conditions are favorable. In most cases, it is advisable to consider weed control in two phases as part of site preparation prior to planting, and as an important component of the post-germination maintenance program.