Posted: 17/07/2015 at 07:26
No, you don't want your carrots to flower!
Carrots usually take two years to complete their lifecycle. In the first year they build up a store of energy in the root - this forms the carrot that we want to eat.
In the second year the energy from the carrot is used up to produce the flower and seeds. The 'carrot' becomes old, withered and tough.
A shock to the system (e.g. drought or root disturbance) can cause the carrot to flower early (in the first year) as a sort of self-preservation strategy as it 'thinks' it's going to die.
Hope that explains it