I have them planted among the tomatoes, this year. I always try to spread the seed out evenly, but there end up many clumped too close together. This time I took a butter knife and carefully wedged out the larger, more developed seedlings that were crowded, and managed to transplant them to new, open spots on a very rainy day, pressing immediately into a new crevice in the soil. They took hold and I don't think I lost a single one. (Smallest of the crowded plants simply pulled and composted, I can't save them all).