Study to expand the range of wild plants for extensive roof greening systems using superabsorbent polymers (SAP)

<p>The aim of the study was to evaluate a range of wild plants for extensive roof greening systems under the environmental conditions of Berlin by using superabsorbent polymers in different concentrations. The substrates used were expanded slate, crushed 1/11 mm and expanded slate, crushed 1/11 mm + 10% organic matter. Super absorbent polymers were used in different concwentrations between 1 and 3 g/l substrate and in different forms (as granulate material and mats).</p>
<p>The species tested were: Anthemis carpatica, Anthemis tinctoria, Armeria maritima, Cerastium tomentosum, Dianthus carthusianorum, Dianthus deltoides, Echium russicum, Euphorbia myrsinites, Gypsophila repens, Hieracium pilsella, Leucanthemum vulgare, Linum perenne, Saponaria ocymoides, Scabiosa lucida, Veronica spicata 'Nana'.</p>