I’ve never grown carrots. We do not really have the soil for it – it is heavy clay with lots of stones. We also have a lot of wireworms around here and they do a lot of damage to everything underground. And we have wild carrots and related plants in the surrounding meadows and thus we also have carrot flies. My father tried to grow them once, without success. This year, I decided to give it a try and grow a few. And I did several things to maximize my chances of success.
The first was that I deep-plowed my main vegetable patch, as I said before. And I continued to take stones out of the soil on that patch, which, even after decades of doing so, still produces several buckets every spring (I got three this year again already). If I did not know better, I would have thought that stones grow from the soil and not the other way around. But still, this huge vegetable patch is most definitively the least stony area of my garden.
As the second thing I decided to not sow the seeds directly into the ground but in small seeding trays made from paper egg packages. My father removed the bottoms and filled them with substrate. I wetted the substrate to compress it a little.
After that I let the seeds germinate on a wet paper towel in a receptacle under a lid. Carrots have a relatively poor germination rate directly in soil and they have to be thinned afterwards. The process of thinning allegedly attracts carrot flies and I wanted to avoid that. Today I carefully picked germinated seeds with a BBQ skewer and I placed one of them into each receptacle in the egg trays. I planted 228 seeds this way (12 trays á 10 and 6 trays á 18).
I planted the whole trays in the center of the vegetable patches. That way they will be as far from the surrounding grass as possible, which should shield them a bit from both carrot flies and wireworms.
And lastly, for today, I thoroughly watered the planted trays. We shall see if it is a success and they at least poke out of the ground. I have no idea how long it should now take for something green to show up. The only thing I can do now is to water them and wait.
Tomorrow I will start planting onions around these trays. Those should allegedly further repel pests and they also allegedly should not compete much with the carrots. I will probably stop the onion planting about 20 cm from these trays anyway so the carrots have an adequate amount of light.