Mixture of flowers with repellent action against Colorado beetles. This mixture of anti-Colorado beetle flowers is composed of 5 annuals and 1 perennial including: coriander, red annual flax, blue annual flax, perennial flax, marigold ... Sowing density: 2 to 4 grams / m² Soil preparation before sowing A good cleaning using a hoe is necessary. You can practice the false sowing technique. You just need to clean your plot once, wait 2 to 3 weeks to give the weed seeds time to germinate. Then you carry out a second cleaning to have a perfectly clean soil before sowing the flower meadow. After removing the last traces of weeds, give it a good dig to loosen the surface of the soil to create a well-refined seedbed. It is not necessary to loosen in depth but only the first 3 or 4 centimeters. Sowing a flower meadow Broadcast the seeds in April-May, spreading them evenly across the entire seedbed. When the seeds are sown, gently work them into the surface of the soil, much like sowing a lawn. Water thoroughly, then during the dry season, they should sprout in a few weeks. Flowering: Flowering from June to September.