Im growing tomatoes, mostly heirlooms in a high tunnel in Sweden. Some of the varieties I grow are prone to cracking, like Sudduth Brandywine, Prudens Purple, Purple Russian and Peacevine. Others like Crnkovic Yugoslavian and Cherokee Purple are doing very well. Green Zebra, Matina and Jaunne Flammee also no cracks. Black Plum, Black Cherry, Sun Gold and Galina Cherry are also on the list of crack free tomatoes if I remember right.
Because we lack a good watering system so far we have quite an extreme watering pattern, watering in a trench with a hose, once a week or less often, which together with our sandy soil is a good recipe for cracking. We try to remediate this mulching but Brandywine and Prudens Purple still crack. We stopped watering for the season for about 10 days ago but we are still getting cracks in some tomatoes when they get fully mature.
|