Direct sow wildflower seeds outdoors where they are to grow from March to May once the soil has warmed. Choose a position in full sun on well drained soil which has been raked to a fine tilth. Sow seeds thinly, and rake lightly to cover the seed, or sow in at a depth of 1.5cm (&frac116;”) in drills spaced 30cm (12″) apart. Water the ground regularly, especially during dry periods. Germination usually takes 14-21 days. As seedlings germinate, carefully thin out any that are too close together with a trowel and replant elsewhere.