Fields, parks and lawns across Europe have turned straw-colored this summer. Ancient landscapes appear as green outlines against yellow backgrounds, where buried walls and ditches hold enough moisture to support patches of grass. Lawns and parklands suffer most as available water is diverted to homes and farms.
July was the driest month on record in England and Wales, with droughts hitting parts of Britain in four of the past five years. As heat waves increase with global warming, this raises questions for a nation proud of its greenery: what will happen to England’s green and pleasant land if such summers become routine?
The outlook is not entirely negative. Grasses as a group tolerate dry conditions well, which has helped them become one of Earth’s most successful plant groups. They comprise over 11,000 species and cover more than 40 percent of the planet’s land, from tropical savannas to Arctic steppe.
Grasses are also older than once believed. While the earliest fossils date to about 55 million years ago, mineral traces in their leaves appear in dinosaur feces from the late Cretaceous, showing they existed tens of millions of years earlier.
Grasslands spread widely 20 to 30 million years ago during a cooler, drier climate when they outcompeted other vegetation.
British lawn grasses, however, are less suited to drought than some relatives elsewhere. Even native northern European species that prefer cool, damp weather can survive dry spells by reducing leaf water loss and extending roots deeper for moisture.
In severe drought they shut down, channeling remaining water to protected growing centers inside outer leaves. These outer leaves dry and die, while the centers store sugars to retain water and shield cells. Yellow lawns can therefore recover once rain returns, as seen after past droughts.
Yet dry spells will recur. In many regions grass turns yellow in summer. The British public may need to accept this pattern or plant varieties better suited to warmer conditions, though these may struggle in colder months.
Climate change brings not only warmer weather but greater unpredictability, sometimes called global weirding. July 2026 and 2022 were very dry in Britain, yet July 2023 saw 70 percent above-average rainfall. Planning is difficult without knowing the new normal.
People in Britain could adjust habits if patterns stabilize, but no single grass type will keep the landscape green year-round. Adapting may require accepting yellow lawns in dry summers and rethinking expectations for parks and gardens.
