Monday 23 September 2019

Dutch tree takes to Twitter to talk about the weather and sap flow

The tree is fitted with telecommunications equipment. Photo: WUR

A poplar tree in the Dutch university town of Wageningen has been hooked up to Twitter so it can send out updates about its sap flows and how fast it is growing.

The 30-year-old tree, in the grounds of the agricultural university, has been fitted with instruments to measure its reactions.

‘This means we can continually see how the tree is reacting to temperature, rain and wind from a distance,’ tree biologist Ute Sass-Klaassen said. The tree will also be able to ‘warn’ researchers if it gets ‘thirsty’ during a drought or if other issues stop its growth.

The results will help researchers investigate the interaction between tree growth and extreme weather, the university said.

The Wageningen tree is the fifth European tree on Twitter. Ghent University, for example, already has a maple with 432 followers. In one tweet, on May 17, it said: ‘So good to be back after this long winter! Finally it’s getting warm again and I can grow grow grow and my sap flow flow flow!!’

Wageningen’s tree will file its reports on sap flow using the Twitter handle @TreeWatchWUR. It already has 644 followers without sending a single message. has been free for 12 years, but now we are asking our readers to help. Your donation will enable us to keep providing you with fair and accurate news and features about all things Dutch.
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