U.K. self-storage operator Big Yellow Group PLC has planted thousands of poppy seeds on the roof of its facility in Hounslow, England, to commemorate the 100th anniversary of the outbreak of World War I. Company officials are hopeful the flowers will bloom by Aug. 4, which coincides with Great Britain’s entry into the war, according to the source.

The flowers are meant as a reminder to the human sacrifice endured during the global conflict, the source reported. The seeds are arranged to form the numeral “100” when they bloom.

“We wanted to mark this year in a unique way,” said Daniel MacAuliffe, managing director of Wild About Roofs, which did the planting. “By sowing the poppy seeds and watching them grow over the coming months into a spectacular and bright 100, this is a great way to show our support to the 100 years of remembrance.”

The planting was done in partnership between Big Yellow, Wild About Roofs and the Hounslow Chamber of Commerce. The project also included sponsorships from local companies.

Once the flowers are in bloom, a special event will be held at the Big Yellow storage facility to unveil the “100,” MacAuliffe said.

Big Yellow Group operates 66 self-storage locations in the United Kingdom under the Big Yellow Self Storage brand name, with most concentrated in Greater London. The portfolio comprises 4.2 million square feet.

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