Guide

What is hydroseeding?

Hydroseeding is a method of planting grass and ground cover by spraying. Seed, mulch, fertiliser and a binder are mixed with water and sprayed onto prepared soil through a hose. The mulch forms a blanket that holds the seed, keeps it moist and protects it until it roots.

It is used on lawns, highway slopes, mine sites and anywhere grass must grow fast over a large or difficult area.

How it works

1. Prepare the ground

The site is cleared of debris and weeds, graded to the finished shape, and the top layer is loosened so seed and water can get in. On lawns this includes levelling. On slopes it may include matting or nailing first.

2. Mix the slurry

A hydroseeding machine has a tank with an agitator. Water goes in first, then mulch, seed, fertiliser and a binder called a tackifier. The mix is kept moving so it stays even.

3. Spray

A pump pushes the slurry through a hose or a boom. The operator lays it down in overlapping passes until the soil is covered in an even green blanket. Large areas take hours, not days.

4. Germinate and establish

The mulch holds moisture and shades the seed. With light watering, the seed germinates under the blanket and roots into the soil. The mulch breaks down as the grass fills in.

Before

Spray day

First shoots

Established

What goes in the mix

Seed

Grass chosen for the soil, climate, sun and use. On slopes, a mix of grasses and legumes for quick cover and deep roots.

Mulch

Wood fibre, paper fibre or a blend. It holds water, shades the seed and protects the soil from rain impact. On steep ground a heavier bonded fibre is used.

Fertiliser

A starter feed for the first weeks of growth.

Tackifier

A natural or synthetic binder that glues the mix to the soil so rain does not wash it off.

Water

The carrier. Also a colourant, so the operator can see coverage.

Where hydroseeding is used in India

• Lawns. Homes, farmhouses, housing societies, campuses, parks, sports grounds.
• Highways and railways. Embankments and cut slopes along new roads and tracks, where bare soil would erode in the first monsoon.
• Mining and industrial land. Overburden dumps, tailings and reclaimed land.
• Solar parks and large sites. Dust control and ground cover between rows and around infrastructure.
• River banks and canals. Vegetation that holds the bank.
• Green roofs and landscaping. Where a lawn is wanted but turf is hard to carry or lay.

Hydroseeding compared with turf rolls and hand seeding

Turf rolls give an instant green surface. They cost the most, because the grass is grown on a farm, cut, transported and laid by hand, and they need weeks of heavy watering to root. They do not stay on steep ground.

Hand seeding is cheap but uneven. Seed is eaten by birds, washed by rain and dried by sun, so patches are common and the job is often repeated.

Hydroseeding sits between them. It costs less than turf, covers evenly, holds the seed through rain, and roots in your own soil from the first day. The grass takes a few weeks to fill in rather than being green on day one.

When to hydroseed in India

Grass germinates best in warm, moist conditions. In most of India that means the weeks before and during the monsoon, and spring. Peak summer dries the mulch too fast and winter slows germination in the north. Timing varies by region and by grass. We advise on the right window for your site when we quote.

Caring for a hydroseeded area

• Keep the mulch moist, not flooded, for the first weeks. Short, frequent watering is better than long soaks.
• Keep foot traffic and vehicles off until the grass is established.
• First mowing when the grass is tall enough to cut without pulling it out. Mow high.
• A second feed after the first month helps it thicken.

Questions people ask