The best time to hydroseed is after the last spring frost. It has been shown that the roots are not injured by cold temperatures at this time. However, you should avoid planting new seedlings in areas where there have been recent freezes, as these plants could be killed or stunted if frozen ground returns during germination. When do I start seeding?
You can begin seeding about 4 weeks before the first fall frost date of your area (usually around September 15). This will allow for adequate growth and root development before winter’s freeze arrives. How many seeds per hill?