A nature-inspired playground is neither an overgrown garden nor an educational experiment, but rather a carefully planned open space that allows children to experience nature firsthand, engage in physical challenges, and play independently. The concept of a nature-based playground combines insights from open-space planning, developmental psychology, and landscape design into a planning task that sets higher standards than a conventional playground equipped with play structures, but in return delivers significantly greater benefits: for children, for the urban environment, and for biodiversity.
- What distinguishes a nature-based playground from conventional playgrounds and how it is defined
- What developmental and health benefits nature-based play offers
- How nature-based play areas are situated within open-space planning and classified legally
- Which vegetation and terrain elements form the basis of nature-based play area design
- How water, soil, sand, and natural materials are used functionally and safely as play elements
- What standards and guidelines apply to nature-based play areas and how they should be applied
- How the care and maintenance of nature-based play areas are organized and communicated
- What typical planning mistakes occur and how to avoid them
Definition and Delimitation: What Is a Nature-Based Playground?
The term “nature-based playground” refers to a type of open space in which natural or nature-based elements structure and shape play activities, rather than prefabricated metal or plastic equipment. Nature-based play areas use the terrain, vegetation, water, soil, sand, STEINS, and wood as primary play materials. They are designed so that children do not play according to predetermined sequences of activities, but rather decide for themselves what, how, and with what they play. This openness is not a lack of planning, but rather its goal.
The nature-based playground must be distinguished from several related concepts. The adventure playground, as it has been known since the 1940s in Scandinavia and the Anglo-Saxon world, relies on building materials that children can assemble and modify themselves, and is often supervised by educational staff. The nature-based playground, on the other hand, generally requires no supervision and is designed for long-term, independent play. It also differs from what is known as a “forest kindergarten” or nature education in the narrower sense: it is a designed open space, not a program. And it is not the same as a “green” playground, which merely plants a few shrubs among the play equipment without altering the logic of play.
In the technical terminology of open-space planning, these are also referred to as nature-based play areas, nature-oriented play spaces, or, in the Anglo-Saxon context, “nature play spaces” and “loose parts play environments.” All these terms share the fundamental idea that the quality of a play space is determined not by the number of play structures, but by the variety of play opportunities and the depth of the experience of nature.
Developmental Psychology and Health Foundations
Research on the importance of contact with nature for child development is extensive and consistent. Children who regularly play in nature-based environments demonstrate a more pronounced ability to assess risk, engage in creative problem-solving, and cooperate socially. Natural spaces do not offer predetermined play sequences: a hill can be a slide, a lookout point, a hiding place, or a battlefield. This ambiguity demands cognitive flexibility and imagination to an extent that standardized play equipment is structurally incapable of providing.
In his long-term studies, British environmental psychologist Roger Hart has shown that children’s range of activity in urban areas has shrunk dramatically since the 1970s. Children are less likely to explore outdoors on their own, have less contact with unspoiled natural spaces, and spend more time in controlled indoor environments. The consequences for motor development, stress regulation, and risk-taking are well documented in the scientific literature. While nature-based play areas in the city cannot completely reverse this trend, they do create opportunities close to home for precisely the kinds of experiences that are lacking in everyday urban life.
The connection between contact with nature and stress regulation is particularly relevant. Studies in environmental psychology, including those related to Rachel and Stephen Kaplan’s Attention Restoration Theory, demonstrate that unstructured natural spaces promote the ability to relax and restore cognitive capacities. For children, this means that playing in nature-based spaces is not merely a leisure activity outside of school, but a developmentally necessary counterbalance to cognitively demanding learning environments. Open-space planners who design nature-oriented play areas thus contribute to children’s health in ways that go far beyond play in the narrow sense.
Planning Principles: Location, Catchment Area, and Space Requirements
The planning of a nature-oriented playground begins with an analysis of the site and its catchment area. Playgrounds in Germany are regulated at the municipal level; the building codes of the individual federal states generally stipulate that play areas must be provided for residential buildings above a certain size. The guidelines for space requirements vary but typically range from six to twelve square meters per residential unit for playgrounds for toddlers and are higher for play areas for older children. These minimum areas are often barely sufficient for nature-oriented design because natural elements require more space than individual play structures.
Catchment areas are differentiated by age group. Playgrounds for young children should be within a few minutes’ walking distance—that is, within a radius of about 100 to 150 meters. Playgrounds for school-age children may be farther away, as this age group is capable of covering greater distances on their own. Nature-based play areas are particularly effective for children aged six to twelve, who possess both the motor skills and cognitive maturity needed to explore complex natural environments on their own. For this group, more spacious areas, landform features, and vegetation structures are particularly valuable.
The location within the urban fabric significantly influences design options. In densely built-up downtown areas, nature-based play spaces are often limited to small residual areas, which can nevertheless develop nature-based qualities through skillful terrain modeling, planting, and material selection. In suburban areas, new development zones, or near schools and daycare centers, there is often greater potential for larger areas, allowing for a more comprehensive implementation of nature-based play space concepts. In any case, open-space planners should assess the existing vegetation: Existing trees, groups of shrubs, or terrain features serve as a valuable starting point and should be preserved wherever possible.
Design Elements: Vegetation, Topography, Water, and Natural Materials
Vegetation is at the heart of a nature-based playground. Trees, shrubs, and grasses not only serve aesthetic or ecological functions here but are also direct play elements. Dense shrub plantings of hardy, native species such as hazel (Corylus avellana), elderberry (Sambucus nigra), hawthorn (Crataegus monogyna), or blackthorn (Prunus spinosa) form natural hiding spots, caves, and mazes that children can explore and shape on their own. Willow structures made of living rods—so-called willow tunnels, willow huts, or willow walls—are particularly popular because they grow and change over the course of the season, thereby evolving the play experience over time.
Trees are indispensable: they provide shade, offer climbing opportunities, and structure the space. Tree species suitable for nature-oriented play areas include English oak (Quercus robur), hornbeam (Carpinus betulus), wild cherry (Prunus avium), and field maple (Acer campestre). These species are well-suited to the site, ecologically valuable, and resilient to soil compaction caused by intensive use. Fruit trees, especially old standard trees, complement the environment by providing fruit that children can harvest and eat, offering a direct and sensory experience of nature.
Landscape modeling is another key design element. Hills, hollows, slopes, and valleys create topographical diversity that encourages physical activity in ways no piece of equipment can replicate. A hill two to three meters high offers opportunities for rolling down in the summer, sledding in the winter, and a vantage point in every season. Hollows can be designed as rainwater retention areas that temporarily fill with water after rain, thus serving as a dynamic play element. This combination of play area design and blue-green infrastructure is particularly valuable in planning because it combines multiple functions within a single space.
Water is the most popular play element of all. Mud areas, water pumps with troughs and channels, shallow streams, or temporary puddle landscapes appeal to all age groups and promote both motor and cognitive development. When planning water play areas, hygiene requirements must be observed: Stagnant water without circulation poses risks, which is why watercourses with a slope and regular flushing or pump systems connected to a potable water supply are preferred. Mud areas without open water are less of a hygiene concern and easier to maintain.
Natural materials such as tree trunks, boulders, pebbles, bark mulch, and branches complement the overall design. Horizontal tree trunks serve as balance beams, seating, and habitats for insects. Boulders structure the space, provide climbing opportunities, and require no maintenance. Loose materials such as branches, pinecones, or STEINS—which children can rearrange, build with, and shape themselves—align with the “Loose Parts” concept, which architect Simon Nicholson described as early as the 1970s as a fundamental principle of creative play environments.
Standards, Safety, and Legal Classification
Nature-based playgrounds are subject to the same regulatory requirements as conventional facilities. DIN EN 1176 (Playground equipment and playground surfaces) and DIN EN 1177 (Impact-absorbing playground surfaces) form the European framework for the safety of playground equipment and fall protection surfaces. For nature-based elements such as tree trunks, boulders, or terrain features—which are not considered playground equipment under the standard—the operator is subject to general safety obligations under the German Civil Code (BGB). This means that even if no standardized equipment is present, the operator must ensure regular inspection and maintenance.
The distinction between “play equipment” and “play element” is relevant in practice. A wooden climbing frame is considered play equipment under DIN EN 1176 and must be tested, installed, and regularly inspected accordingly. A horizontal tree trunk that invites children to balance on it is not play equipment as defined by the standard, but is nonetheless subject to the duty of care: It must lie securely, must not be rotting, and must not have any sharp edges. Open-space planners should be aware of this distinction and clearly document in specifications and maintenance plans which elements are subject to which requirements.
Fall protection requirements are often easier to meet in nature-based play areas than in conventional facilities because many elements have lower fall heights. Nevertheless, fall protection surfaces under and around climbable elements must be verified in accordance with the standard. Bark mulch, sand, and gravel are recognized shock-absorbing materials whose layer thickness and grain size must comply with the requirements of DIN EN 1177. Nature-based surfaces made of grass or soil alone generally do not meet fall protection requirements if the fall height exceeds one meter.
When planning natural play areas within public green spaces or school grounds, it is recommended to consult the guidelines issued by the German Social Accident Insurance (DGUV), which publishes specific regulations for schools and childcare facilities. These regulations take into account the unique circumstances of supervised play areas and provide guidance on risk assessment that goes beyond mere compliance with standards.
Care, Maintenance, and Communication with Users
Nature-based play areas place different demands on maintenance than conventional facilities. Vegetation must be allowed to grow, bloom, and bear fruit, but at the same time must be managed in such a way that sightlines for supervision are maintained, paths remain usable, and no hazards arise from dead branches or unstable trees and shrubs. The intensity of maintenance is not necessarily lower than that of a grass playground with equipment, but it is distributed differently: less use of machinery, more skilled manual labor, and greater ecological judgment.
A maintenance plan is essential for nature-based play areas and should be developed as early as the planning phase. It specifies which trees and shrubs are to be pruned, how often, and to what extent; when mud areas are to be cleaned or renewed; how natural materials are to be replenished or replaced; and what inspection intervals apply to the various elements. The FLL (Research Association for Landscape Development and Landscape Architecture) has developed recommendations for the maintenance of play areas that can serve as a technical foundation.
One aspect that is often underestimated is communication with users, residents, and operators. Nature-based play areas may look untidy or neglected during certain phases, such as after winter pruning or after heavy use in the rain. Anyone who doesn’t know that mud, deadwood, and wild vegetation are intentional features here—and not signs of neglect—will complain. Open-space planners and operators should therefore plan for informational signs, participatory formats, or communication strategies early on to explain why this play area looks the way it does and what benefits it provides for children. Acceptance cannot be taken for granted; it must be earned.
Common Planning Mistakes and How to Avoid Them
The most common mistake in planning nature-based play areas is underestimating the amount of space required. Nature-based design needs space: for clusters of trees and shrubs that develop density, for terrain modeling that makes the topography tangible, and for water features that aren’t immediately overcrowded. Anyone who tries to fit nature-based elements into an area of 100 square meters—which is barely enough for a conventional playground—will fail. Nature-based quality requires a minimum size that ranges from 300 to 500 square meters, depending on the concept and age group.
Another mistake is choosing plants that are not suited to the site. Exotic trees and shrubs—which, while robust and fast-growing, fail to establish ecological relationships with native insects and birds—fall short of a key aspect of the natural design goal. Native species are not only ecologically more valuable; they are also generally more resilient to the stressful conditions of heavily used play areas because they are adapted to the local climate and soil.
The importance of shade is also often underestimated. Nature-oriented play areas without sufficient tree cover are barely usable in the summer and pose health risks. Shade provided by trees is not only more pleasant than sunshades; it is also more effective in regulating the climate because trees actively lower the ambient temperature through transpiration. Open-space planners should therefore make trees a top priority rather than treating them as an afterthought.
Nature-Based Play Areas in the Context of Urban Development
The nature-based playground is not a niche solution for environmentally conscious municipalities, but rather a planning task that is gaining increasing strategic importance in the context of urban development. Cities that want to design their open spaces to be climate-resilient, biodiversity-promoting, and socially inclusive will find in nature-based play areas a tool that addresses several of these goals simultaneously. Trees and shrubs cool the urban climate, retention basins manage stormwater, and flowering areas support insects—all within a space that simultaneously allows children to experience nature firsthand.
The combination of playground planning and blue-green infrastructure is particularly effective in this regard. Rainwater management in play areas—that is, the targeted use of stormwater for mud and water play areas or the design of retention basins as play landscapes—is an example of how multifunctionality can be concretely implemented in open-space planning. Such concepts are not only ecologically sound; they are also economically attractive because they combine infrastructure costs for drainage and playground design.
Finally, nature-based play areas contribute to biodiversity in urban spaces in ways that go beyond mere symbolism. Wooded structures made up of native species provide food and nesting opportunities for birds and insects. Deadwood elements serve as habitat for beetles, spiders, and small mammals. Flowering perennials and wild herbs provide food for wild bees and butterflies. A well-planned, nature-based playground is thus also a stepping-stone habitat within the urban green network—a small but functional piece of nature in the heart of the city. The fact that children learn to recognize and appreciate this network is perhaps the most sustainable contribution a playground can make.
