Alvis has been know as the ‘go-to’ supplier for specialty mixes for many years.  

Rain Gardens

Rain Gardens are an eco-friendly way to use rain water as a resource rather than a byproduct.  They bring beauty to our neighborhoods, reduce the collection of pollutants that are carried to our waterways, and help reduce flooding to our properties.

Coney-Island-Rain-Garden     Colerain-Park-Rain-Garden
Coney Island Rain Garden             Colerain Park Rain Garden

Cincinnati-Zoo-Rain-Garden    Cincinnati-Zoo-Rain-Garden
Cincinnati Zoo Rain Garden
all photos courtesy & property of MCWCC (

Suggested Materials: Prepared soil medium (consisting of one or more of varying ratios: topsoil, sand, gravel, compost, peat moss.  Our standard mix is 65% sand/25% compost/10% soil.), #2 Limestone, Oversize Gravel, Shredded Bark Mulch.

Bio-Retention Basins are similar to Rain Gardens in that they are also depressions or basins in a landscaped area.  Water collected in a Bio-Retention Basin percolates through a system where the water is treated by a number of physical, chemical and biological processes.  The slowed, now cleaned water is then allowed to drain into native soils and is then directed through underdrains to a storm sewer or receiving waters.  We can custom blend any bio mix to meet your area’s specification.

Bio-swales are conveyance channels with native vegetation planted along the side slopes and bottom.  Bio-swales provide a natural alternative to storm sewers, curbs, and gutters.  They can help support an existing system, reducing the load during storms.


Permeable Landscapes are porous pavement materials which allow water to percolate rather than run off into storm sewers.

Soil and Turf Specialists

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