Seedmat for growing plants

A method of manufacturing a seedmat suitable for laying on a soil, the seedmat comprising a biodegradable base layer, a seed distribution and a biodegradable cover layer;

• wherein the seed distribution includes fertilizer granules or pellets that each have a coating that enables the fertilizer granules or pellets to absorb water and to slowly release that water, together with fertilizer;
• and
• wherein the method includes the steps of (i) spraying adhesive onto one or both of the biodegradable base layer or the cover layer, that the adhesive securing seeds in position;
• and (ii) applying the adhesive using a centrifugal spray apparatus with multiple rotating spray heads;
• wherein the seedmat also includes a biodegradable water retention layer that is configured to have a wet density higher than at least one of the biodegradable base layer, the seed distribution layer and the cover layer to provide water to the seeds in dry conditions;
• wherein the biodegradable water retention layer is a layer of nonwoven cellulose configured to release stored water;
• and
• wherein the seedmat includes a tackifier layer integrated as part of the biodegradable base layer, the tackifier layer enabling the biodegradable base layer to conform and stick to the soil, including uneven or irregular soil surfaces, without the use of external adhesive;
• and
• wherein the tackifier layer, when wet, enables the biodegradable base layer, to become mouldable and conform to the soil including uneven or irregular soil surfaces.