Landscape Design for the Gulf Climate: Plant Selection and Water Management

Green spaces in Gulf cities are not a luxury: they reduce heat, improve quality of life and give cities their identity. But they come at a high water cost in one of the world’s most water-scarce regions. The question every landscape designer faces here is how to create beautiful spaces that use less water.

The scale of the challenge

Media reports in the UAE indicate that greening and landscaping projects may account for a very large share of the country’s water use. The reason is that many projects relied for years on attractive imported plants that need far more water and fertiliser than native ones.

Three factors add to the challenge: high temperatures that increase evaporation, sandy soils that hold little water, and salinity in soil and groundwater in many areas.

Why native plants?

A scientific review by UAE University researchers, published in 2017 in the Emirates Journal of Food and Agriculture, concluded that native plants offer an opportunity to develop green spaces under saline and water-scarce conditions, reducing water used for landscaping.

Native plants have lived in the region for a very long time and are adapted to its heat, soil and salinity. A well-known example is the ghaf tree (Prosopis cineraria), which experts recommend over imported mesquite (Prosopis juliflora). Mesquite was planted in Abu Dhabi about three decades ago, then spread widely and reduced biodiversity, while ghaf is highly water-efficient and does not crowd out other species.

Planning authorities have adopted this direction. Abu Dhabi’s Public Realm Design Manual targeted drought-tolerant local species for at least four-fifths of landscaped areas.

Principles of water-efficient design

Analyse the site first

Before choosing any plant: where does the summer sun come from, what is the wind direction, what is the soil and its salinity, and where does irrigation water come from and what is its quality? These answers decide what can succeed on the site.

Divide the site into water zones

Group plants by water need: put the thirstiest in small, heavily used areas and the least thirsty at the edges and in large open areas.

Less turf

Large lawns are among the most water-hungry landscape elements in a hot climate. The answer is not to remove them, but to limit them to areas actually used for sitting and play, and replace the rest with drought-tolerant ground covers, gravel or organic mulch.

Smarter irrigation

Drip irrigation delivers water directly to the root zone and reduces losses. Scheduling irrigation early in the morning or in the evening reduces evaporation. Native trees need regular watering in their first years until roots are established, after which their needs fall sharply.

Mulch the soil

A layer of gravel or organic material around plants reduces evaporation, lowers soil temperature and limits weeds.

Luxury design and sustainability

Some clients assume sustainability means simple or desert-style design. In reality, many luxury projects in the Gulf combine both: large native trees for shade and identity, limited and carefully designed water features, night lighting that highlights the composition, and a few focal points of flowering plants. Luxury lies in the quality of design and execution, not in the amount of water used.

Conclusion

Successful landscaping in the Gulf starts from the site, not from a plant catalogue. Make native plants the base, zone the site by water need, reduce turf, use drip irrigation and mulch the soil. The result is a beautiful space that uses less water and reflects the identity of the place.