Hydroseeding is the easiest – and sometimes the only – way to establish grass cover on steep slopes, the edges of watercourses, and other locations where access is difficult. It's also a very useful technique for landscaping and environmental applications – for establishing grass on rubbish tips, controlling dust on coal tips, and combatting soil erosion.
If you're unfamiliar with hydroseeding, it's a sowing method that involves spraying a slurry containing your chosen seed mixture, fertiliser, and a cellulose material that helps bind the seed to the ground.
Hydroseeding is so safe, efficient, and practical, it's often used as an alternative to normal seeding on areas larger than 1.000 m². For example, if the prepared surface is so delicate it can't be driven on, hydroseeding lets you sow seed and add fertiliser in a single, low-impact operation. That's why hydroseeding is as likely to be used on golf greens as it is on grass verges.
You can sow any type of seed with hydroseeding – anything from the smallest grass seeds through wild herbs to seeds of woody plants. You choose the seed that's right for the location and the project.
Since hydroseeding is not dependent on the weather, you can continue to sow throughout the growing season. You judge the time for hydroseeding by the level of establishment of earlier seedings.
Hydroseeding works on flat and irregular terrain, so there's no need to prepare the ground first. You don't even have to remove stones or rocks. The only reason you'd prepare the ground is when you want to use the finished grass for a specific purpose.
Growing conditions vary widely across terrain suitable for hydroseeding. Here are our suggestions for various applications:
In more extreme conditions on steeper slopes, it helps to mix in 10% Italian ryegrass (lolium multiflorum) for optimum germination and establishment. Strong creeping red fescue (festuca rubra rubra), with its long underground rhizomes, is good for soil stabilisation. And it regenerates well after summer stress.