That's the question being asked by children at 13 Huddersfield schools who are taking part in a competition.
They have got eight weeks to produce something to impress the judges.
The young gardeners are in the race to win the Baby Bio National Schools Growing Competition.
It is run by invitation only and they were signed up by Armitage's Garden Centres, which has business outlets at Birchencliffe and Shelley.
William Armitage, the firm's marketing director, said: "It's a really successful contest which encourages children to take an active interest in plants.
"Plus, there's always a bit of healthy competition between the schools taking part."
Each contestant is being asked to bring their petunia for judging on June 11.
Winners will go on to the national finals to be held at BBC Gardeners' World Live at the NEC in Birmingham.
There, they will compete with the best in the country to win up to £1,000 for their school and £100 in National Garden Centre gift vouchers for themselves.