How to Plant a Beautiful Waterfall Garden

Follow these steps to create your own waterfall garden.

A waterfall garden is an enchanting addition to any outdoor space, elevating the beauty and serenity of one’s surroundings. Creating a backyard oasis with a cascading waterfall not only adds visual appeal but also introduces the soothing sound of moving water, transforming the area into an ideal escape from the hustle and bustle of daily life. Building a waterfall garden may seem like an intricate task, but with some planning and basic DIY skills, it is an achievable project that can be both enjoyable and rewarding.

The concept of a waterfall garden revolves around two key structures: the pool or pond into which the water will flow, and the cascading framework that forms the rock waterfall itself. Establishing a solid foundation for these structures is crucial for a successful and durable end result. Furthermore, selecting the appropriate materials and pump system is essential for the waterfall to function efficiently and to maintain a natural and appealing appearance.

Starting with a well-designed plan, careful attention to detail, and some creativity, aspiring waterfall garden builders can bring their vision to life. By following a series of simple steps, from digging the pond or pool to constructing the waterfall structure and installing the pump system, anyone can transform their backyard into a captivating and relaxing haven.

Choosing the Perfect Location

Evaluating the Landscape

When creating a waterfall garden, it’s crucial to assess your backyard landscape carefully. Consider any natural or artificial features present, such as trees, plants, or existing pathways. Make sure you have enough space to accommodate the waterfall and its associated features, like a pond or stream.

A landscape designer can offer valuable insights and recommendations, ensuring that the chosen location highlights the waterfall garden’s beauty without disrupting the overall backyard design. Additionally, consulting a professional may help you identify any potential issues or obstacles, such as buried utilities or underground pipes.

Considering Slope and Elevation

The most visually appealing waterfall gardens mimic natural settings by utilizing the slope and elevation of your backyard. Ideally, the waterfall should flow from a higher point and cascade downwards, creating a harmonious transition from the source to the pond below.

A steeper slope allows for a more dramatic waterfall, whereas a gentle slope might require additional digging and construction to achieve the desired effect. If your backyard is relatively flat, you may need to create an artificial slope or elevation using soil and landscaping materials.

Evaluate the Budget and Space

Before beginning your waterfall garden project, establish a realistic budget and consider the amount of available space in your backyard. Waterfall gardens can range from modest, DIY installations to more elaborate designs that require professional help.

Consider the following expenses when creating your budget:

  • Water pump and filtration system
  • Liner or pond materials
  • Rocks or other landscaping materials
  • Plants and aquatic life
  • Labor costs (if hiring a landscape designer)

Ensure that you have enough room to accommodate not only the waterfall itself but also the surrounding landscaping elements, such as plants, rocks, and possibly seating areas. Remember, the goal is to create a serene, cohesive outdoor space that’s both visually stunning and practical for everyday use.

Waterfall Garden Elements

Water Features and Ponds

A waterfall garden is a beautiful addition to any backyard, creating a serene and natural environment. At the heart of this landscape setting is the water feature, which encompasses a combination of ponds and waterfalls. A pond is essential, as it serves as the lower basin for the waterfall to flow into. The pond should be dug to the desired depth and lined using a pond liner to prevent water leakage. A submersible pump and tubing are necessary to circulate the waterfall’s water and keep the water feature functioning efficiently.

Rocks, Boulders, and Gravel

An essential aspect of a waterfall garden is the use of rocks, boulders, and gravel to create a natural-looking landscape. These elements help conceal the tubing, create structural support for the waterfalls, and enhance the overall aesthetic of the garden.

  • Rocks: Varying sizes and textures of rocks are vital for creating a realistic waterfall. Rocks can be used for holding pond liner and membrane plastic in place, and they also act as the building blocks for the waterfall.
  • Boulders: Boulders are larger stones that can be strategically placed around the waterfall and pond to create visual interest and provide support for the water flow. They can also create natural ledges, giving the waterfall a multi-tiered appearance.
  • Gravel: Spreading a layer of gravel over the hardware cloth within the waterfall structure or at the pond’s base provides additional texture and helps to secure the underlying materials. Using gravel also enhances the look of the water feature, mimicking natural creek beds.

By utilizing these elements, a waterfall garden can transform any backyard into a tranquil oasis. With proper planning and execution, these gardens become stunning focal points that showcase the beauty of nature.

Constructing the Waterfall Garden

Excavation

Begin by excavating the area for the pond and waterfall. Ensure that the slope and height of the excavation are appropriate for your desired waterfall height, and consider creating a berm for additional elevation. When digging the basin, create a sump hole for easy water discharge, no more than 3 inches deep.

Installing Pond Liner and Underlayment

For the liner, opt for a durable and flexible material like rubber. First, place an underlayment on the excavated area, which will provide a padding for the liner and protect it from roots or sharp objects. Then, carefully lay the rubber liner over the underlayment, ensuring it covers the entire pond and waterfall area, as well as any adjacent watercourses.

Creating the Watercourse Element

Start by digging a holding and watercourse pool in the excavated area. The holding pool will collect the water and prevent it from spraying out of the circulation tubing. The watercourse directs the flow from the waterfall to the pond. Adjust the slope of the watercourse to achieve the desired water flow speed, and ensure that it blends seamlessly with the pond and the waterfall.

Assembling the Rock Formations

Choose rocks of various shapes and sizes to create a natural-looking waterfall. Arrange them on the pond liner and along the watercourse, ensuring they provide adequate support for the waterfall’s structure. Use sand to fill in any gaps between the rocks, which helps secure them in place, and apply sealant where necessary to prevent water leakage. As you position each rock, periodically pour water over them to observe the flow and make adjustments as required. Finally, add plants and other decorative elements to complement the rock formations and enhance the visual appeal of your outdoor waterfall garden.

Selecting and Installing the Perfect Pump

Choosing Between Submersible and External Pumps

When it comes to selecting a pump for your waterfall garden, there are two main types to consider: submersible pumps and external pumps.

Submersible pumps are installed directly in the water and are often preferred for their ease of installation, lower cost, and minimal maintenance. They are ideal for smaller water gardens and require no additional plumbing. However, they may be less energy-efficient compared to external pumps and have a shorter lifespan. If you choose a submersible pump, ensure that it is safe for use in ponds and water gardens and is certified by a qualified electrician.

External pumps are placed outside of the pond area and connected via plumbing to the waterfall. They are often more durable, energy-efficient, and can handle larger pond systems. Some external pumps may require professional installation, and a qualified electrician should be consulted to ensure safety. Additionally, external pumps can be slightly noisier than their submersible counterparts.

Calculating Pump Size and Flow Rate

Selecting an appropriate pump size and flow rate for your waterfall garden is crucial to ensure optimal performance and visual appeal. Here are some guidelines to help you calculate the correct pump size and flow rate for your project:

  1. Determine the desired flow rate: A common rule of thumb is to have 100 gallons per hour (GPH) of flow rate for every inch of waterfall width. For example, if your waterfall is 12 inches wide, you would need a pump with a flow rate of 1200 GPH.
  2. Calculate the head height: Measure the vertical distance from the surface of the pond to the highest point of the waterfall. This will give you the head height, which represents the vertical lift the pump needs to provide to push water to the top of the waterfall.
  3. Select the pump: Use the desired flow rate and head height to choose a pump that meets these requirements. Pond pump specifications typically include a performance chart that outlines the flow rate at various head heights. The pump should be capable of delivering the desired flow rate at the required head height. Remember to examine the pump’s energy-efficiency and additional features, such as adjustable flow rates or built-in debris filters, that may benefit your waterfall garden.

By choosing the right type of pump, adequately sizing it, and ensuring its safe installation, you’ll be well on your way to creating a beautiful and functional waterfall garden.

Alternative Waterfall Garden Styles

Preformed Liners

Preformed liners are a popular option for creating backyard waterfalls, as they offer a straightforward and low-maintenance solution. These liners come in various shapes and sizes, allowing homeowners to customize their waterfall garden based on the space available. Additionally, using preformed liners can reduce the chances of leaks, as they are strong and durable. To install a preformed liner waterfall, excavate the area, place the liner, and arrange rocks and plants around it to create a natural look.

Copper Waterfalls

Copper waterfalls provide a unique and artistic touch to a backyard garden. They are available in various designs, such as sheets, tubes, and sculptural shapes to fit diverse aesthetic preferences. A copper waterfall typically involves a submersible pump, which pushes water through copper tubing and creates an elegant flowing effect. As copper ages, it develops a patina, adding character and charm to the design. Copper waterfalls require minimal maintenance, making them an attractive option for busy homeowners.

Backyard Pool Waterfalls

Integrating a waterfall into an existing backyard pool can create a resort-style oasis in your own garden. There are several ways to achieve this, including using preformed liners, natural rocks, or even artificial rock structures for a realistic appearance. When designing a pool waterfall, it’s important to consider factors like water flow, filtration, and safety. Pool waterfalls may also require additional plumbing and electrical work to integrate seamlessly with the existing pool system. Family Handyman and other resources offer helpful tips and guidance for constructing backyard pool waterfalls.

Maintenance and Safety Considerations

Regular Cleaning and Inspections

Regular cleaning and inspections are essential to ensure the longevity and aesthetic appeal of your waterfall garden. Here are some maintenance tips to keep everything running smoothly:

  • Remove debris such as leaves, twigs, and algae from the water regularly to avoid clogging and keep the water looking clean.
  • Inspect the water pump and circulation pipe for any blockages or leaks. Ensure they are functioning properly to maintain water flow.
  • Check the stability and integrity of the stones or concrete blocks used in creating the waterfall steps as they can shift over time. Make appropriate repairs if necessary.
  • Monitor water levels, and replenish the water supply when needed, as evaporation may cause water levels to decrease.

Protecting Wildlife

A waterfall garden can create a relaxing atmosphere and attract various forms of wildlife. It is crucial to consider their safety and well-being while maintaining the garden:

  • Avoid using harsh chemicals to clean the waterfall or pond, as they can harm the flora and fauna in the water.
  • If fish or other aquatic creatures are present, monitor water quality regularly and ensure that the water stays within the appropriate pH range for the species.
  • Provide escape routes for animals that may accidentally fall into the waterfall or pond by placing stones or sticks at the water’s edge.
  • Be cautious when handling or disturbing the wildlife in your waterfall garden. Some species may be sensitive to human contact, so it’s best to observe from a distance.

By regularly cleaning and inspecting your waterfall garden and taking measures to protect wildlife, you can ensure that your garden remains a picturesque and relaxing retreat for years to come.

Final Touches and Additional Features

Enhancing the Design with Plants

Incorporating plants into your waterfall garden will add a natural touch while also improving water quality. Choose a variety of aquatic plants, such as water lilies, water hyacinths, and cattails, for a balanced ecosystem within your backyard pond. Consider the following when selecting plants:

  • Opt for native species, which are more likely to thrive in your area
  • Combine submerged, floating, and marginal plants for visual diversity and functional benefits
  • Situate taller plants where they won’t obstruct the view of the waterfall

Make sure to clean up any dead or decaying foliage regularly to maintain a healthy environment within the pond.

Adding Lighting for Nighttime Ambiance

Proper lighting can enhance the beauty of your garden waterfall and create a magical atmosphere during nighttime hours. Try implementing the following ideas to make your waterfall and pond a nighttime focal point:

  1. Underwater Lights: Place waterproof lights directly in the pond to highlight its depths and any underwater plants or rocks.
  2. Spotlights: Strategically position spotlights around the waterfall to emphasize its cascading water and intriguing rock formations.
  3. Path Lighting: Guide visitors to the waterfall and pond area with low-level path lights, ensuring a safe and welcoming route.
  4. String Lights: Drape string lights in nearby trees or shrubs for a festive, twinkling effect that complements the shimmering waterfall.

Remember to choose energy-efficient and weather-resistant lighting options, such as LED lights or solar-powered fixtures, when selecting illumination for your outdoor space.