PLANT GROWING MATERIAL FOR ROOFTOP GREENING

摘要

PROBLEM TO BE SOLVED: To provide a plant growing material for rooftop greening, for promoting plant growth by the plant growing material while lightening the material.SOLUTION: This plant growing material for rooftop greening includes a mixture of pumice, clay particle-containing soil, an aggregate agent and water. For the plant growing material, a water retaining agent may be contained in the mixture. For 1.0 mof the total of the amount of pumice and an amount of soil, the amount of the pumice is 0.3-0.9 m, the amount of the aggregate agent is 1-6 kg, and the amount of the water is 0.1-0.5 m.