This sloped backyard was a jungle, full of overgrown plants. The water coming off the slope pitched towards the home creating drainage and water issues in the basement. Our solution was to create a large patio for entertaining using Permeable Pavers which allow water to pass between the joints acting like a large catch basin.

u2014 ALE: Wayne Rain Garden Pennsylvania Landscape & Nursery Association u2014 ALE: Wayne Rain Garden Terren Landscapes http://www.terrenlandscapes.com 2014 PLNA Awards for Landscape Excellence winner Category: Residential Up to $15,000 Award Level: Gold Project Description: Our company was contracted by the client to provide a creative solution to an ongoing drainage problem. Their property is located within 30 feet of a local stream that collects storm water from the surrounding area. The nearby stream and high water table caused the lawn area at the side of their home to flood and to remain waterlogged for a few days after each storm. The client not only had difficulty growing plants in the existing conditions, but also had a problem with mosquitoes due to standing water. Our goal was to design a self-contained, naturalistic rain garden that slowed storm water runoff, allowed for percolation, and promoted infiltration while permitting excess clean water to enter the nearby stream with diminished force. As designed, the rain garden allows the earth to slowly and more naturally absorb excess storm water while filtering out toxins such as excess nitrogen and phosphorous which are frequently found in the landscape, therefore reducing the contaminants entering the stream. A percolation test was conducted with criteria of absorbing a one-inch rainstorm within four hours without overflow. The one-inch storm calculation included an existing downspout from the home, which would be piped into the rain garden to reduce roof runoff. The first test failed due to a deep layer of high clay-content soil. Excavation continued until a layer of sandy loam was reached, the percolation test was repeated, and a successful test result was achieved. Next, the entire rain garden basin was excavated to the sandy loam layer and the soil amended with compost and sand to create a highly porous planting media. Geotextile fabric was placed to help reduce migration of the surface stone into the soil and allow for minimal maintenance. Gravel, river stone and small boulders were carefully placed to achieve the look of a natural streambed. A palette of mostly native plants with a few non-invasive ornamentals were chosen for their ability to survive in extreme conditions ranging from floods to drought and were placed according to their specific preferences. Wetland plants were chosen for the lowest portion of the rain garden as that area remains saturated for longer periods of time, with a Chionanthus virginicus as a focal point surrounded by irises and ferns at the lowest depth. Plants tolerant of drier conditions were chosen for the upper edges of the garden. The beautiful colors of Monarda, Ligularia, Eupatorium, Solidago, Chelone, and Rudbeckia were scattered within the upper edge, while movement and softness were incorporated by use of the graceful Nassella that lines the border. Finally, winter interest was provided with a backdrop of Cornus sericea. As built, this small rain garden creates tremendous impact by decreasing the amount of storm water runoff not only on our client's property, but also in the neighboring stream. It serves as a means of slowing the water and providing an area for infiltration back into the earth. The plants provide a habitat for birds, butterflies, and insects, working in harmony with nature and providing beautiful visual interest year-round. Photo Credit: Lisa C. Falls

Terren Landscapes http://www.terrenlandscapes.com Project Entry: Pembrooke Estate Rain Garden 2014 PLNA Awards for Landscape Excellence Winner Category: Sustainable Landscape &60,000-$120,000 Award Level: Silver Project Description: The client contracted our company to solve multiple existing drainage problems. In a heavy rain event the existing French drain system would overflow, causing water to pool in the driveway. After investigating the system we found that the capacity of the French drain was undersized for the amount of storm water from the large rain events received in recent years. As a result of our findings and at the request of the homeowner, we designed a storm water management system to capture all storm water from the structures on the property and regenerate the underground aquifers for the volume of a 5.8” rainstorm. In addition to the new drain system, the homeowners wanted a rain garden to provide a backdrop for an existing formal garden, provide a habitat for wildlife, and provide screening from an adjacent neighbor. Throughout the design process many challenges were presented, including an existing gas line, which ran directly through the area that best suited the bioswale. The existence of the gas line caused us to alter the shape and depth of the bioswale in some areas. We also inspected the existing downspouts to make sure there were no obstructions that would impede the system’s efficiency, and then conducted a test pit dig to make sure we had sufficient percolation rates for disposal of storm water. To effectively capture the storm water runoff, the existing downspouts were piped from the main house and the large detached garage to a large catch basin located at the low point in the driveway. The driveway catch basin contains two outlet pipes at different elevations within the basin allowing water from smaller rain events to enter the bioswale and rain garden area to percolate into the soil before excess water overflows into a sediment trap which filters out any debris and is then piped to an underground StormTech® pit to slowly percolate into the ground. The other outlet pipe in the driveway catch basin is used for larger storm water events, taking the water directly to the StormTech® pit. Accepting and slowing the velocity of the storm water, mitigation of erosion, and filtering out pollutants contained in the “first flush” of rainfall are the primary functions of the bioswale and rain garden. Planting these areas with mostly native plant species helps carry out these functions while attracting and providing shelter for wildlife. The ‘Niobe’ weeping willow is the centerpiece of the rain garden, connecting with the axis of the existing formal garden. To screen the neighboring property we chose Chamaecyparis nootkatensis ‘Pendula’ for its graceful evergreen habit and tolerance of wet sites. ‘Ivory Halo’ dogwood and Panicum ‘Cloud Nine’ were used for screening as well as winter interest. To provide deciduous structure to the garden Taxodium distichum and Magnolia virginiana were used in conjunction with witch hazel. Mostly native wetland perennials were used due to their tolerance of wet conditions and occasional drought. The area above the StormTech® pit provides space for the client’s family to relax. The rain garden and bioswale provide screening, storm water management, a habitat for wildlife, and plants that enhance the adjacent formal garden. Photo Credit: Terren Landscapes

u2014 ALE: Wayne Rain Garden Pennsylvania Landscape & Nursery Association u2014 ALE: Wayne Rain Garden Terren Landscapes http://www.terrenlandscapes.com 2014 PLNA Awards for Landscape Excellence winner Category: Residential Up to $15,000 Award Level: Gold Project Description: Our company was contracted by the client to provide a creative solution to an ongoing drainage problem. Their property is located within 30 feet of a local stream that collects storm water from the surrounding area. The nearby stream and high water table caused the lawn area at the side of their home to flood and to remain waterlogged for a few days after each storm. The client not only had difficulty growing plants in the existing conditions, but also had a problem with mosquitoes due to standing water. Our goal was to design a self-contained, naturalistic rain garden that slowed storm water runoff, allowed for percolation, and promoted infiltration while permitting excess clean water to enter the nearby stream with diminished force. As designed, the rain garden allows the earth to slowly and more naturally absorb excess storm water while filtering out toxins such as excess nitrogen and phosphorous which are frequently found in the landscape, therefore reducing the contaminants entering the stream. A percolation test was conducted with criteria of absorbing a one-inch rainstorm within four hours without overflow. The one-inch storm calculation included an existing downspout from the home, which would be piped into the rain garden to reduce roof runoff. The first test failed due to a deep layer of high clay-content soil. Excavation continued until a layer of sandy loam was reached, the percolation test was repeated, and a successful test result was achieved. Next, the entire rain garden basin was excavated to the sandy loam layer and the soil amended with compost and sand to create a highly porous planting media. Geotextile fabric was placed to help reduce migration of the surface stone into the soil and allow for minimal maintenance. Gravel, river stone and small boulders were carefully placed to achieve the look of a natural streambed. A palette of mostly native plants with a few non-invasive ornamentals were chosen for their ability to survive in extreme conditions ranging from floods to drought and were placed according to their specific preferences. Wetland plants were chosen for the lowest portion of the rain garden as that area remains saturated for longer periods of time, with a Chionanthus virginicus as a focal point surrounded by irises and ferns at the lowest depth. Plants tolerant of drier conditions were chosen for the upper edges of the garden. The beautiful colors of Monarda, Ligularia, Eupatorium, Solidago, Chelone, and Rudbeckia were scattered within the upper edge, while movement and softness were incorporated by use of the graceful Nassella that lines the border. Finally, winter interest was provided with a backdrop of Cornus sericea. As built, this small rain garden creates tremendous impact by decreasing the amount of storm water runoff not only on our client's property, but also in the neighboring stream. It serves as a means of slowing the water and providing an area for infiltration back into the earth. The plants provide a habitat for birds, butterflies, and insects, working in harmony with nature and providing beautiful visual interest year-round. Photo Credit: Lisa C. Falls

This sloped side yard was in the full sun and was created to resolve a drainage problem and was designed to transition from the front yard to the backyard pool area (behind the fence). this portion of the project is approx. $4500.00 to $5500.00

This space needed erosion control and drainage solutions. In our area, new construction and higher land prices are causing homes to be built 10 feet apart. This almost always creates erosion and drainage issues. This is our solution. Photo by Jay Sifford.

This narrow strip between house and garage had an erosion problem. A creek bed was the perfect solution. The catwalk bridge crosses over it, and the downspouts empty into it.

Fountain in front of bay window is welcoming focal point accented by boxwood cones. Golden acorus grass adds color and texture year round. Annual bed is planted in warm months with lantana which attracts butterflies & pollinators. Perennial black eyed susan adds extra color in late summer. Extra texture is added via autumn ferns hugging porch which is a shady spot. Photographer: Danna Cain, Home & Garden Design, Inc.

D. Watson
This is an example of a mid-sized modern backyard concrete paver landscaping in Houston with a fire pit.

Inspiration for a contemporary landscaping in Portland.

Dry creek bed captures water running downhill towards house. It also drains the water that previously puddled on the sidewalk. Photographer: Danna Cain, Home & Garden Design, Inc.

When I came to this property not only was the landscape a scrappy mess the property also had some very real grading and drainage issues that were jeopardizing the safety of this house. As recent transplants from New Jerseys to Southern California these clients were in awe of all the plants they were seeing in their neighborhood. Living on the water at the Ventura harbor they wanted to be able to take full advantage or the outdoor lifestyle and cool ocean breeze. Being environmentally conscious citizens, these clients were very concerned that their garden was designed with sustainability as a leading factor. As they said in our initial consultation, “Would want or garden be part of the solution not part of the problem.” This property is the last house on the bottom of a gently sloping street. All the water from the neighbor’s houses drain onto this property. When I came into this project the back yard sloped into the house. When it would rain the water would pool up against the house causing water damage. To address the drainage we employed several tactics. Firstly, we had to invert the slope in the back yard so that water would not pool against the house. We created a very minor slope going away from the house so that water drains away but so the patio area feels flat. The back of the back yard had an existing retaining wall made out of shabby looking slump stone. In front of that retaining wall we created a beautiful natural stone retaining wall. This retain wall severs many purposes. One it works as a place to put some of the soil removed from the grading giving this project a smaller carbon foot print (moving soil of a site burns a lot of fossil fuel). The retaining wall also helps obscure the shabby existing retaining wall and allows for planting space above the footing from the existing retaining wall. The soil behind the ne retaining wall is slightly lower than the top of the wall so that when the run on water on from the neighbor’s property flows it is slowed down and absorbed before it has a chance to get near the house. Finally, the wall is at a height designed to serve as overflow seating as these clients intend to have occasional large parties and gatherings. Other efforts made to help keep the house safe and dry are that we used permeable paving. With the hardscape being comprised of flag stone with gravel in-between water has a chance to soak into the ground so it does not flow into spots where it will pool up. The final element to help keep the house dry is the addition of infiltration swales. Infiltration swales are depressions in the landscape that capture rain water. The down spouts on the sides of the houses are connected to pipe that goes under the ground and conveys the water to the swales. In this project it helps move rain water away from the house. In general, these Infiltration swales are a powerful element in creating sustainable landscapes. These swales capture pollutants that accumulate on the roof and in the landscape. Biology in the soil in the swales can break down these pollutants. When run of watered is not captured by soil on a property the dirty water flows into water ways and then the ocean were the biology that breaks down the pollutants is not as prolific. This is particularly important in this project as it drains directly into the harbor. The water that is absorbed in to the swales can replenish aquafers as well as increasing the water available to the plants planted in that area recusing the amount of water that is needed from irrigation. When it came to the planting we went with a California friendly tropical theme. Using lots of succulents and plants with colorful foliage we created vibrant lush landscape that will have year around color. We planted densely (the images in the picture were taken only a month after installation). Taller drought tolerant plants to help regulate the temperature and loss of water from the plants below them. The dense plantings will help keep the garden, the house and even the neighborhood cooler on hot days, will provide spaces for birds to enjoy and will create an illusion of depth in a somewhat narrow space. Today this garden is a space these homeowners can fully enjoy while having the peace of mind that their house is protected from flooding and they are helping the environment.

Inspiration for a landscaping in New York.

Rainwater ran off the front yard, which is a septic field, toward the house. In addition, downspouts and non guttered roof lines compounded the problem. A dry creek bed was a great solution, both aesthetically and functionally. Aesthetically, it provides a focal point for the front garden. Here, a 'Ryusen' Japanese maple anchors the corner.

When I came to this property not only was the landscape a scrappy mess the property also had some very real grading and drainage issues that were jeopardizing the safety of this house. As recent transplants from New Jerseys to Southern California these clients were in awe of all the plants they were seeing in their neighborhood. Living on the water at the Ventura harbor they wanted to be able to take full advantage or the outdoor lifestyle and cool ocean breeze. Being environmentally conscious citizens, these clients were very concerned that their garden was designed with sustainability as a leading factor. As they said in our initial consultation, “Would want or garden be part of the solution not part of the problem.” This property is the last house on the bottom of a gently sloping street. All the water from the neighbor’s houses drain onto this property. When I came into this project the back yard sloped into the house. When it would rain the water would pool up against the house causing water damage. To address the drainage we employed several tactics. Firstly, we had to invert the slope in the back yard so that water would not pool against the house. We created a very minor slope going away from the house so that water drains away but so the patio area feels flat. The back of the back yard had an existing retaining wall made out of shabby looking slump stone. In front of that retaining wall we created a beautiful natural stone retaining wall. This retain wall severs many purposes. One it works as a place to put some of the soil removed from the grading giving this project a smaller carbon foot print (moving soil of a site burns a lot of fossil fuel). The retaining wall also helps obscure the shabby existing retaining wall and allows for planting space above the footing from the existing retaining wall. The soil behind the ne retaining wall is slightly lower than the top of the wall so that when the run on water on from the neighbor’s property flows it is slowed down and absorbed before it has a chance to get near the house. Finally, the wall is at a height designed to serve as overflow seating as these clients intend to have occasional large parties and gatherings. Other efforts made to help keep the house safe and dry are that we used permeable paving. With the hardscape being comprised of flag stone with gravel in-between water has a chance to soak into the ground so it does not flow into spots where it will pool up. The final element to help keep the house dry is the addition of infiltration swales. Infiltration swales are depressions in the landscape that capture rain water. The down spouts on the sides of the houses are connected to pipe that goes under the ground and conveys the water to the swales. In this project it helps move rain water away from the house. In general, these Infiltration swales are a powerful element in creating sustainable landscapes. These swales capture pollutants that accumulate on the roof and in the landscape. Biology in the soil in the swales can break down these pollutants. When run of watered is not captured by soil on a property the dirty water flows into water ways and then the ocean were the biology that breaks down the pollutants is not as prolific. This is particularly important in this project as it drains directly into the harbor. The water that is absorbed in to the swales can replenish aquafers as well as increasing the water available to the plants planted in that area recusing the amount of water that is needed from irrigation. When it came to the planting we went with a California friendly tropical theme. Using lots of succulents and plants with colorful foliage we created vibrant lush landscape that will have year around color. We planted densely (the images in the picture were taken only a month after installation). Taller drought tolerant plants to help regulate the temperature and loss of water from the plants below them. The dense plantings will help keep the garden, the house and even the neighborhood cooler on hot days, will provide spaces for birds to enjoy and will create an illusion of depth in a somewhat narrow space. Today this garden is a space these homeowners can fully enjoy while having the peace of mind that their house is protected from flooding and they are helping the environment.

Dry creek bed directs water away from house
Photo of a rustic landscaping in Austin.

Rainwater ran off the front yard, which is a septic field, toward the house. In addition, downspouts and non guttered roof lines compounded the problem. A dry creek bed was a great solution, both aesthetically and functionally. Aesthetically, it provides a focal point for the front garden.

u2014 ALE: Wayne Rain Garden Pennsylvania Landscape & Nursery Association u2014 ALE: Wayne Rain Garden Terren Landscapes http://www.terrenlandscapes.com 2014 PLNA Awards for Landscape Excellence winner Category: Residential Up to $15,000 Award Level: Gold Project Description: Our company was contracted by the client to provide a creative solution to an ongoing drainage problem. Their property is located within 30 feet of a local stream that collects storm water from the surrounding area. The nearby stream and high water table caused the lawn area at the side of their home to flood and to remain waterlogged for a few days after each storm. The client not only had difficulty growing plants in the existing conditions, but also had a problem with mosquitoes due to standing water. Our goal was to design a self-contained, naturalistic rain garden that slowed storm water runoff, allowed for percolation, and promoted infiltration while permitting excess clean water to enter the nearby stream with diminished force. As designed, the rain garden allows the earth to slowly and more naturally absorb excess storm water while filtering out toxins such as excess nitrogen and phosphorous which are frequently found in the landscape, therefore reducing the contaminants entering the stream. A percolation test was conducted with criteria of absorbing a one-inch rainstorm within four hours without overflow. The one-inch storm calculation included an existing downspout from the home, which would be piped into the rain garden to reduce roof runoff. The first test failed due to a deep layer of high clay-content soil. Excavation continued until a layer of sandy loam was reached, the percolation test was repeated, and a successful test result was achieved. Next, the entire rain garden basin was excavated to the sandy loam layer and the soil amended with compost and sand to create a highly porous planting media. Geotextile fabric was placed to help reduce migration of the surface stone into the soil and allow for minimal maintenance. Gravel, river stone and small boulders were carefully placed to achieve the look of a natural streambed. A palette of mostly native plants with a few non-invasive ornamentals were chosen for their ability to survive in extreme conditions ranging from floods to drought and were placed according to their specific preferences. Wetland plants were chosen for the lowest portion of the rain garden as that area remains saturated for longer periods of time, with a Chionanthus virginicus as a focal point surrounded by irises and ferns at the lowest depth. Plants tolerant of drier conditions were chosen for the upper edges of the garden. The beautiful colors of Monarda, Ligularia, Eupatorium, Solidago, Chelone, and Rudbeckia were scattered within the upper edge, while movement and softness were incorporated by use of the graceful Nassella that lines the border. Finally, winter interest was provided with a backdrop of Cornus sericea. As built, this small rain garden creates tremendous impact by decreasing the amount of storm water runoff not only on our client's property, but also in the neighboring stream. It serves as a means of slowing the water and providing an area for infiltration back into the earth. The plants provide a habitat for birds, butterflies, and insects, working in harmony with nature and providing beautiful visual interest year-round. Photo Credit: Lisa C. Falls

Terren Landscapes http://www.terrenlandscapes.com Project Entry: Pembrooke Estate Rain Garden 2014 PLNA Awards for Landscape Excellence Winner Category: Sustainable Landscape &60,000-$120,000 Award Level: Silver Project Description: The client contracted our company to solve multiple existing drainage problems. In a heavy rain event the existing French drain system would overflow, causing water to pool in the driveway. After investigating the system we found that the capacity of the French drain was undersized for the amount of storm water from the large rain events received in recent years. As a result of our findings and at the request of the homeowner, we designed a storm water management system to capture all storm water from the structures on the property and regenerate the underground aquifers for the volume of a 5.8” rainstorm. In addition to the new drain system, the homeowners wanted a rain garden to provide a backdrop for an existing formal garden, provide a habitat for wildlife, and provide screening from an adjacent neighbor. Throughout the design process many challenges were presented, including an existing gas line, which ran directly through the area that best suited the bioswale. The existence of the gas line caused us to alter the shape and depth of the bioswale in some areas. We also inspected the existing downspouts to make sure there were no obstructions that would impede the system’s efficiency, and then conducted a test pit dig to make sure we had sufficient percolation rates for disposal of storm water. To effectively capture the storm water runoff, the existing downspouts were piped from the main house and the large detached garage to a large catch basin located at the low point in the driveway. The driveway catch basin contains two outlet pipes at different elevations within the basin allowing water from smaller rain events to enter the bioswale and rain garden area to percolate into the soil before excess water overflows into a sediment trap which filters out any debris and is then piped to an underground StormTech® pit to slowly percolate into the ground. The other outlet pipe in the driveway catch basin is used for larger storm water events, taking the water directly to the StormTech® pit. Accepting and slowing the velocity of the storm water, mitigation of erosion, and filtering out pollutants contained in the “first flush” of rainfall are the primary functions of the bioswale and rain garden. Planting these areas with mostly native plant species helps carry out these functions while attracting and providing shelter for wildlife. The ‘Niobe’ weeping willow is the centerpiece of the rain garden, connecting with the axis of the existing formal garden. To screen the neighboring property we chose Chamaecyparis nootkatensis ‘Pendula’ for its graceful evergreen habit and tolerance of wet sites. ‘Ivory Halo’ dogwood and Panicum ‘Cloud Nine’ were used for screening as well as winter interest. To provide deciduous structure to the garden Taxodium distichum and Magnolia virginiana were used in conjunction with witch hazel. Mostly native wetland perennials were used due to their tolerance of wet conditions and occasional drought. The area above the StormTech® pit provides space for the client’s family to relax. The rain garden and bioswale provide screening, storm water management, a habitat for wildlife, and plants that enhance the adjacent formal garden. Photo Credit: Terren Landscapes