A man-made vitreous fibre (MMVF) plant growth substrate is provided. The substrate has properties including a volume of 3 to 20 litres, two layers of differing density, and the use of an organic binder selected from formaldehyde free binders. This is found to provide a substrate which allows excellent control of the water and/or nutrient contents within the substrate when used for plant growth.

The invention provides a process for the preparation of a seed support that comprises a biodegradable polymer film having a plurality of seeds at least partially embedded therein, the process comprising the steps of (a) providing a hydrophobic release liner (18); (b) applying a coating of an aqueous dispersion or solution comprising a biodegradable polymer on the hydrophobic release liner (18), wherein the dispersion or solution has a viscosity of from 2000 to 16000 mPa.Math.s and a water content of from 58% to 90% by weight of the coating; (c) depositing a plurality of seeds onto the coating so that the seeds become at least partially embedded in the coating; (d) drying the coating to give a final water content of 1.5% to 15% by weight and thereby form the biodegradable polymer film; and (e) detaching the hydrophobic release liner from the biodegradable polymer film to give the seed support.

A substrate comprised of a gel on a wire or mesh scaffolding may be used for growth of plants. The gel may include two polysaccharide components, with a second of the two components providing increased rigidity and/or adherence to the scaffolding. Plants may be grown, including from seed, in the substrate. The substrate may be used as part of a grow wall in an aeroponics plant growth system.

A substrate comprised of a gel on a wire or mesh scaffolding may be used for growth of plants. The gel may include two polysaccharide components, with a second of the two components providing increased rigidity and/or adherence to the scaffolding. Plants may be grown, including from seed, in the substrate. The substrate may be used as part of a grow wall in an aeroponics plant growth system.

A layered product including at least one natural fiber layer including a web of natural fibers and at least one SAP layer including a non-woven substrate including a thermoplastic polymer fibers and a superabsorbent polymer adhered to thermoplastic polymer fibers, wherein the non-woven substrate is a high loft fabric, for example an airlaid or spunlaid non-woven, and wherein the natural fiber layer and the SAP layer are connected to each other by needle punching, stitch bonding or using an adhesive. A process to prepare the layered product and the use of the layered product in for example horticulture.

A layered product including at least one natural fiber layer including a web of natural fibers and at least one SAP layer including a non-woven substrate including a thermoplastic polymer fibers and a superabsorbent polymer adhered to thermoplastic polymer fibers, wherein the non-woven substrate is a high loft fabric, for example an airlaid or spunlaid non-woven, and wherein the natural fiber layer and the SAP layer are connected to each other by needle punching, stitch bonding or using an adhesive. A process to prepare the layered product and the use of the layered product in for example horticulture.

A flexible greening system integrated with water into fertilizer includes a vegetation fixing assembly, a vegetation growth layer and a water supply assembly. The vegetation fixing assembly is configured to connect to a building. The vegetation growth layer is provided on the vegetation fixing assembly and is configured for planting of green vegetation. The vegetation growth layer includes a substrate layer for vegetation growth and a drainage layer provided below the substrate layer. The water supply assembly is configured to supply the water to the green vegetation, and is provided with a drainage pipe communicated with the drainage layer.

A flexible greening system integrated with water into fertilizer includes a vegetation fixing assembly, a vegetation growth layer and a water supply assembly. The vegetation fixing assembly is configured to connect to a building. The vegetation growth layer is provided on the vegetation fixing assembly and is configured for planting of green vegetation. The vegetation growth layer includes a substrate layer for vegetation growth and a drainage layer provided below the substrate layer. The water supply assembly is configured to supply the water to the green vegetation, and is provided with a drainage pipe communicated with the drainage layer.

Resilient plant development media are disclosed that can include a first layer that includes a plurality of adjacent strands, a second layer that includes a plurality of strands that are adjacent and that is in stacked relation relative to the first layer, wherein the strands of the first layer and the strands of the second layer are in a non-aligned orientation relative to each other. The strands in the first layer and the strands in the second layer may define a crisscross pattern. The multilayer resilient media is effective in supporting seeds during germination and plants throughout their growth and development. The multilayer resilient media is effective for use in various plant growing modalities, e.g., aeroponic, nutrient film, and hydroponic plant growing environments, and may be easily cleaned for reuse.

Resilient plant development media are disclosed that can include a first layer that includes a plurality of adjacent strands, a second layer that includes a plurality of strands that are adjacent and that is in stacked relation relative to the first layer, wherein the strands of the first layer and the strands of the second layer are in a non-aligned orientation relative to each other. The strands in the first layer and the strands in the second layer may define a crisscross pattern. The multilayer resilient media is effective in supporting seeds during germination and plants throughout their growth and development. The multilayer resilient media is effective for use in various plant growing modalities, e.g., aeroponic, nutrient film, and hydroponic plant growing environments, and may be easily cleaned for reuse.