|In our area we have periodic weather extremes; April-June-nitetime temperatures go from 45-50; daytime can vary from 70-98; I know about covering them, for extreme cold; but watering, I have been told from every other day to every 5 or 6 days. I have 3 thriving cherry tomatoe plants, but my regular tomatoes-3 plants, I only have from 2 to 7 tomatoes, also we get exactly 6 hours sunlite. They were real bushy and I pruned them. We had blossoms fall and I used the blossom set. I use the miracle grow plant fertilizer about every 18-20 days.