When and how to do a dormant seeding is a question that is often asked when sowing native seeds. By following these simple guidelines, you can be successful using a dormant seeding.
Make sure your site is prepared and there is no sign of any growing live vegetation present. An exception would be if you were planning on supplementing an existing planting to add more diversity. After the ground temperature drops below 50 degrees, you can start sowing your seed usually in the Midwest this occurs at the end of October or the first of November. Even if you have 2 inches of snowfall, the seed can be broadcast over the snow. Any time in late fall or even winter, seeds can be broadcast.
You can check your soil temperature in your state by googling for soil temperatures for instance in Iowa, you may go to: http://extension.agron.iastate.edu/NPKnowledge/soiltemphistory.html
If you have a small area, one to two acres or less, broadcast your seed by hand. In this instance the seed can be mixed with 10 to 20 parts of wet sand to 1 part seed by volume. After you have thoroughly mixed your seed with the wet sand, divide it into 2 to 4 lots and go over the entire area with each lot. The seed can then be broadcast by hand using an ice cream container under one arm and reaching in with the other hand to grab a handful of this seed matrix. Cast it in a swinging motion just as you would feed chickens. With the next lot of seed, walk in a different direction so as to get a more even distribution of the seed. This is repeated with each lot and going a different direction each time.
Since this is a dormant seeding, we are depending upon Mother Nature to achieve good seed to soil contact which is the most important element in any kind of seeding. Mother Nature will then rain, snow, freeze and thaw. This is just what we want as it will ensure the proper stratification of the seed to break the dormancy code and allow better germination in the spring. Stratification is a process whereby we can either by Mother Nature or human treatment break the dormancy of seeds to enable germination.
Go to Native Wildflowers & Seeds Website for a variety of quality native seeds and seed mixes. Ion Exchange, Inc. is a Native Plant and Seed Nursery for over 25 years. They grow and market native wildflowers, grasses, sedges and rushes.