Plant holder and process for producing the same

Claim 2

A plant holder comprising a substrate mixture of peat, humus, loam, and fertilizer, with reticulated flakes of polyurethane foam carrying said substrate mixture, said mixture and flakes being bound together by an elastic binder, said binder being present in an amount sufficient to produce a coherent yet porous mass.

Claim 3

The plant holder as defined in claim 1 wherein said polyurethane foam comprises a polyesterurethane foam.

Claim 4

The plant holder as defined in claim 1 including strip means interconnecting a plurality of plant holders, said plant holders being prism-shaped with a saw-tooth cross-section.

Claim 5

The plant holder as defined in claim 3 wherein said strip means comprises pairs of strips with the saw-tooth surfaces facing and meshing with each other, the cross-section of a combined meshed pair of strips being substantially rectangular-shaped.

Claim 6

A plant holder as defined in claim 1 including two concave slots contacting each other to form an insertion slot.

Claim 7

The plant holder as defined in claim 5 wherein said concave slots are sickle shaped slots for forming a doublesickle shaped insertion slot, said slots contacting each other.

Claim 8

The plant holder as defined in claim 6 wherein said plant holder has a substantially triangular-shaped cross-section.

Claim 9

The plant holder as defined in claim 6 wherein said plant holder has a substantially circular-shaped cross-section.

Claim 10

The plant holder as defined in claim 6 wherein the shape of said plant holder is substantially the frustum of a cone.

Claim 11

The plant holder as defined in claim 1 including strip means interconnecting a plurality of plant holders, said plant holders being prism-shaped with a saw-tooth cross-section, said strip means comprising pairs of strips with the saw-tooth surfaces facing and meshing with each other, the cross-section of a combined meshed pair of strips being substantially rectangular-shaped, two concave slots contacting each other to form an insertion slot, said concave slots being sickle shaped slots for forming a double-sickle shaped insertion slot, said slots contacting each other, said fertilizer means comprising organic and mineral fertilizers, said polyurethane foam comprising a polyesterurethane foam; said double sickle slot being formed of two crescent-shaped slots substantially tangentially in contact with each other.