
Tropical landscape design is more than simply choosing plants and arranging them; it involves understanding core design principles that work together to create a visually appealing, functional, and cohesive outdoor space.
These principles—unity, balance, scale, variety, colour, and texture—are especially relevant in creating a tropical garden, where the lush, dense appearance and vibrant atmosphere require careful planning.
Let’s explore these key landscape design principles and how they can be used to shape a tropical garden that captures the essence of a lush paradise.
Unity

Unity is the sense of harmony that ties together various garden elements, making the space feel cohesive rather than disjointed. In any garden, unity can be achieved by repeating similar colours, textures, or shapes throughout. This repetition creates a sense of visual consistency, encouraging a natural flow from one area to another.
Applying unity in a tropical garden
In a tropical garden, unity is often achieved through dense planting and a consistent theme that captures the feeling of a lush jungle. Repeating plants with large, glossy leaves or bold shapes, like banana plants and elephant ears, can establish visual consistency.
Additionally, tropical landscape design benefits from uniform hardscape materials, such as natural stone or bamboo, used across pathways, borders, and other structures. Consistent colours—such as vibrant greens with splashes of red or yellow—also help create unity. Overall, the goal is to evoke a cohesive, immersive experience that feels like a natural rainforest rather than a curated garden.
Balance

Balance in garden design refers to the visual equilibrium of elements. There are two types of balance: symmetrical (formal) and asymmetrical (informal). Symmetrical balance involves mirroring elements on either side of a central line, which creates a sense of formality and order. Asymmetrical balance, on the other hand, is less structured and often uses contrasting elements to achieve harmony.
Applying balance in a tropical garden
Tropical gardens are often designed with asymmetrical balance, which gives a natural, “wild” look without appearing chaotic. For example, a large focal plant like a palm or bird of paradise on one side can be balanced by a grouping of smaller plants, such as ferns or low-growing gingers, on the other.
In tropical landscape design, balance can also be created by placing larger plants at the back of the garden and smaller ones in front, providing depth while allowing each plant’s unique form to shine. The goal is to mimic nature’s inherent balance, ensuring that no single area feels heavier or more crowded than the others.
Scale and proportion

Scale and proportion refer to the size relationship between garden elements. It’s essential to select plants and features that fit the size of the garden and harmonise with each other. Large trees in a small space can overwhelm, while tiny plants in a vast garden may feel lost. Proper scaling ensures that the garden feels expansive, balanced, and comfortable.
Applying scale and proportion in a tropical garden
In a tropical garden, scale is particularly important as many plants have large, bold foliage that can easily dominate the space. For a small tropical landscape design, opt for dwarf varieties of larger plants, like dwarf palms, to prevent the garden from feeling cramped. In larger spaces, plants like banana trees, palms, and cannas can be used without overwhelming the design.
Layering is also essential: use tall plants to create a canopy, mid-height plants for the understory, and ground cover plants to ensure every layer contributes to a balanced, proportionate design. This layering mirrors the natural structure of tropical rainforests and adds depth to the garden.
Variety

Variety adds interest and complexity to a garden, preventing it from looking monotonous. Variety can come from differences in plant shapes, colours, textures, and growth habits. However, it’s essential to strike a balance—too much variety can make a garden look chaotic, while too little can make it feel dull.
Applying variety in a tropical garden
Tropical gardens are inherently diverse, with plants in many shapes, textures, and colours. To apply variety effectively, mix plants with different leaf shapes, such as the wide, round leaves of taro with the narrow, spiky leaves of bromeliads.

Use a range of colours, like the bright blooms of hibiscus or heliconia, alongside foliage plants in deep greens or variegated shades. Vines and climbers add vertical variety, creating layers in height and structure. Just remember to balance the variety with repetition—repeating specific plants or colours throughout the garden to create cohesion.
Colour

Colour is a powerful tool in garden design. It can influence mood, create depth, and highlight specific features. Cool colours like greens and blues tend to recede, making a space feel larger and more tranquil, while warm colours like reds, yellows, and oranges draw the eye, adding energy and excitement.
Applying colour in a tropical garden
Colour is especially prominent in tropical gardens, where vibrant hues mimic the exotic landscapes of the tropics. To create the desired effect, consider using warm colours in focal areas, such as around seating spaces or near entrances. Exotic tropical plants, like those of hibiscus, bird of paradise, and bougainvillea, provide eye-catching focal points.

Green should still be the dominant colour to maintain the lush feel, but contrasting blooms and foliage, such as red ti plants or purple heart (Tradescantia), add vibrant splashes that keep the design lively. For a calming contrast, cool blues and whites from flowers like plumbago or white ginger lily can be strategically placed.
Texture

Texture in gardening refers to the surface quality of plant leaves, bark, or flowers. It can range from coarse to fine and is essential for adding depth and interest. In a well-designed garden, contrasting textures can help create a layered effect, enhancing visual appeal.
Applying texture in a tropical garden
Tropical plants are rich in texture, from the smooth, waxy leaves of philodendrons to the feathery fronds of ferns. For a balanced look, pair large, coarse-textured plants like elephant ears or banana plants with finer-textured plants like ferns and grasses. The contrast between broad-leaved plants and delicate, fine-leaved ones gives a layered, dense appearance typical of a tropical jungle. Coarse textures can serve as focal points, while finer textures work well in mass plantings or as ground cover to soften transitions.
Movement

Movement is an often-overlooked principle that brings a garden to life. It can be achieved through plants that sway in the breeze, the use of water features, or pathways that guide the viewer’s eye through the garden. Movement adds dynamism, making the garden feel more alive and interactive.
Applying movement in a tropical garden
Movement in a tropical garden can be enhanced through plants with long, flexible leaves, such as bamboo or ornamental grasses, which sway gracefully. Adding a water feature, like a small waterfall or pond, introduces the gentle sound of moving water, enhancing the sense of tranquillity. Additionally, winding paths that lead through dense plantings can create a feeling of mystery and exploration, encouraging movement through the space. Vines and climbers can add a dynamic vertical element, creating a sense of upward growth and life in the garden.
Focal points

Focal points are elements in a garden that draw attention, creating interest and guiding the viewer’s eye. Focal points can be statues, large plants, water features, or even a unique seating area. They add structure to the garden, preventing it from feeling overly chaotic.
Applying focal points in a tropical garden
In a tropical garden, focal points could include a tall palm or banana plant, a vibrant red heliconia, or a sculptural rock or water feature. Placing a large plant or unique feature at the end of a pathway or at a natural visual intersection creates a strong, inviting focal point. Even a hammock or tropical-inspired seating area can serve as a focal point, blending function and aesthetics.
Conclusion

Designing a tropical garden requires a deep understanding of garden design principles and an appreciation for the lush, vibrant essence of the tropics. By carefully considering unity, balance, scale, variety, colour, texture, movement, and focal points, you can create a tropical garden that feels like a natural oasis.
Each of these principles contributes to a balanced and visually compelling design, capturing the immersive beauty of a tropical paradise right in your backyard.
Whatever size of tropical landscape you are working with, if you apply these principles thoughtfully, it will help you achieve a garden that looks stunning and feels harmonious and inviting.

Our other tropical garden resources
- Transform your garden with tropical garden design: 15 excellent expert tips
- Tropical garden style and the harmony with modern architecture
- The 15 most exotic-looking lush tropical garden plants
- How to create an indoor jungle with tropical house plants
- The 20 best hardy exotic plants for a tropical look in your garden
- 8 Brilliant home gardening ideas to transform your outdoor entertaining spaces
- Transform your outdoor space: 15 stunning modern outdoor patio ideas
- Principles of tropical landscape design for a stunning tropical garden
Martin Cole has been an avid plant lover and gardener for more than 20 years and loves to talk and write about gardening. In 2006 he was a finalist in the BBC Gardener of the Year competition. He is a member of the National dahlia Society.
He previously lived in London and Sydney, Australia, where he took a diploma course in Horticultural studies and is now based in North Berwick in Scotland. He founded GardeningStepbyStep.com in 2012. The website is aimed at everybody who loves plants or has been bitten by the gardening bug and wants to know more.
Gardening Step by Step has been cited by Thompson and Morgan, the UK’s largest mail order plant retailer, as a website that publishes expert gardening content.