London,
United Kingdom 
What went wrong? We watered daily, they were in 18 inches of compost/soil.
20 Jun, 2010
Answers
Was the soil a fine, sandy, tilth... carrots do not grow well in heavy or stoney soil.
20 Jun, 2010
They also don't like heavily composted soil!
20 Jun, 2010
Indeed!
20 Jun, 2010
Previous question
Did you transplant them?
20 Jun, 2010