We have been trying to sow carrot seeds each month (succession sowing) to ensure continuous supply for our kitchen as it is one of our favourite vegetables. Sowing carrots in winter is tricky it probably won't give you root but gives you flower. Last cool season, we tried growing 3 different varieties of carrot which is Afghanistan carrot, dragon carrot and topweight carrot. Sowing Afghanistan carrot and dragon carrot after the month of May (end autumn) has the tendency to bolt rather than produce root. This is the second year we grow topweight carrot in winter season and they tend to be more resistant to bolt. I sowed some topweight carrot in polystyrene container early winter (June) and the seeds germination rate was good. The seeds germinate quicker than it usually does.
New topweight carrot seedlings last June.
After 16 weeks from sowing, a reasonable size of carrot roots to harvest. In winter, growth should be slower than usual so I was not expecting a big root. Winter growing carrot taste sweeter.
We usually harvest only the amount needed and left the rest to grow. But by November all those carrots have to be harvested because the carrot core begins to become woody. It was nice to have fresh carrots in spring while waiting for the spring-sown carrot roots to grow.
Topweight carrot seems to be a good all year round carrot.
This variety also does well in partial shade.
It also can be force grown in hard clay soil.
But you won't expect a good size of root from clay soil.
But you can get a baby carrot size.
We started to harvest topweight carrot sowed in end winter.