Permeable Surfaces

Permeable surfaces are an essential element of a high-performing landscape, offering a number of benefits over conventional paved surfaces like concrete or asphalt. These specialized materials allow water to soak into the earth, rather than running immediately offsite– replenishing groundwater and reducing erosion and the need for supplemental irrigation. Permeable surfaces can be used in areas like paths, patios, and driveways, and can be installed in countless styles. This makes them an easy element to incorporate into your landscape, serving as a critical link between your needs and the environment.  

Here are good materials for permeable surfaces in your landscape:

Paths and walkways

• Stepping stones and paver systems – pavers that are widely spaced and set into gravel or groundcover, allowing water to soak into the ground through the joints
• Crushed or decomposed granite – sustainable materials that are completely permeable and compact enough for stable footing
• Spaced flagstone – large, flat stones spaced with generous gaps that allow for water infiltration and planting opportunities

Patios and social areas

• Paver systems – stone, brick, or concrete pavers laid with wide spacing that allow water infiltration while supporting furniture and heavy use
• Permeable pavers – specially-designed porous pavers that allow water to pass directly through them into the earth below
• Decomposed granite – sustainable material that is completely permeable while providing a firm surface

Driveways and parking

• Permeable concrete or porous asphalt – modified paving mixtures lacking fine particles, creating stable surfaces able to withstand heavy loads while still allowing water infiltration
• Grass pavers – structural grid systems that combine stone pavers with grass or other low-growing vegetation, allowing water infiltration and increasing aesthetic value