General Hydroseeding Information
What is Hydroseeding?
Hydroseeding (or hydraulic mulch seeding, hydro-mulching, hydraseeding) is a seeding process which makes use of a mixture of seed, water and mulch product. The product is brought to the location, and sprayed over prepared ground in a uniform layer. Hydroseeding is an better alternative to the traditional process of broadcasting or sowing dry seed. It promotes quick germination and inhibits soil erosion.
The mulch in the hydroseed blend helps maintain a specific moisture level of the seed for healthier/quicker growth. The product can be mixed with other ingredients to include fertilizer, tackifying agents, green dye and other additives depending on the specific application and needs of the customer.
What are the advantages of hydroseeding?
Starting a lawn by hydroseeding is more cost effective than laying sod/turf and quicker than using seed. Hydroseeding is primarily used to seed grass on residential and commercial sites. It is most used on golf courses, lawns and areas too large or inaccessible to conventional seeding methods. An alternative use of the process is to spread combinations of wildflower and tree/shrub seeds or turf grasses for erosion control. The process known as sprigging (or hydro-sprigging) when the spray product contains stolon or rhizomes instead of seed.
What is Sod?
Sod is grass grown to be transplanted to homes and businesses that need new grass. Sod can be bought from garden centers that have fresh pallets of sod delivered to them from a sod farm.
Acres of land is used solely for sod production. It is treated much like a crop such as wheat or soy. The land is chosen for soil quality, flatness and drainage. Before planting the seed, the land is cultivated and tilled to 20 to 25 cm deep.
There are several varieties of grasses that may be chosen for sod growing. Some of them are Kentucky Bluegrass Sod, Kentucky Bluegrass/Fine Fescue, NSGA's Specialty Turfgrass Sod, Supina Bluegrass and Weeping Alkaligrass. The type of grass that is chosen is determined by the climate and soil type of the farm. The land is covered with a seed in a uniform way and at a shallow depth by machines called Cultipacker seeders.
Sod must be mowed carefully to keep it strong and healthy. This is done with a mower called a gang reel mower. This mower has several flat mowing disks that glide over the grass.
After 1 to 2 1/2 years of growth, the sod is ready to be harvested to sell. The grass, roots and some dirt is cut from the land in 1 square-yard carpets and are mechanically rolled by machines such as Brouwer sod harvesters. The sod is then loaded onto pallets and covered with damp canvas to be transported.