Last February I sowed carrots in my greenhouse raised bed and got a crop from late Spring to mid summer.
This March I sowed carrots in my greenhouse raised bed and they have germinated and are slowly growing.
I have also sowed carrots direct in the soil outdoors the weekend before Easter (near end of March), and sowed some in a raised bed on the community allotment. I made shallow drills, tried to make the soil as crumbly as I could, laid out seed tape, covered it, and because like last year, SE England has stolen someone elses semi-arid climate, I have been watering regularly. Not one single seedling has emerged so far. What am I doing so differently when sowing in the soil compared to sowing in the greenhouse to completely destroy any chance of germination?