The #SmartDebate will continue until April 16. Twitter users are asked to nominate the smartest person ever to have lived plus a brief explanation. The best 10 entries will win a box of Gro-Sure Smart Lawn Seed.
Gro-Sure Smart Lawn Seed contains seeds coated in aqua gel ‘smart technology’ that can soak up to 400 times its own weight in water.
Senior brand manager Jayne Hall said: "We know that this is the smartest grass seed around and we’re confident that anyone who uses it will feel the same.
"To launch the product, we’ve decided to lead a debate on the smartest person ever to have lived and will be giving away a free pack to x10 people who can wow us with nominations!
"To enter the competition, simply tell who you think is really smart and use the hashtag #SmartDebate. We’ll choose the winners on April 16."