Okay, I know you want to bury them deep, leaving just a little above the soil so you get a massive root ball. What I can't find is what to plant them in. Is this the time to add compost, peat, coir and fertilizer to the soil and bury the stem in this mixture? I don't want the plants to die now since they are doing sooo well, for a change. I have already buried them once, probably too early but they are thriving compared to the ones I have not transplanted. I appologize if this on here somewhere but I can not find it.
What I do is I put my tomatoes in larger pots as they grow until I have them in 1 gallon pots. Each time I set them right on the bottom of the new pot and bury them until there is only the top leaves sticking out. In my garden I dig a deep hole so again I am burying most of the plant. I mix into the garden soil that I took from the hole one cup of a mix of 1 part dried milk, 1 part bone meal and 1 part epsoms salts. I already have this mixed together in a bucket and just scoop one cup out for each plant as I am putting them in the ground. My entire garden gets top dressed with compost early in the season over a month before I set the tomatoes out so compost is already in my soil. If you haven't done that I would add it when planting. You want the soil to have enough organic material in it to be crumbly. If it is too heavy the roots cant grow through it as well. Even if your soil is sandy the organic matter will help retain moisture. I have heavy clay soil in my area so I add chopped leaves and some blood meal to my garden every fall and it has improved the soil dramatically.
I am unclear on a couple of things. I'm guessing you are planting in pots from previous posts. I use a good quality potting soil and it takes me through the summer (I dump it or reuse for flowers the following year). Keeping the pots in a sheltered full sun location is important in this region. Weather is milder, and the wall-of-water or other protection might be a good idea for maintaining warmth but allowing air circulation. We have been having some pretty cool nights. When planting tomatoes in pots you don't want to over fertilize because you can get all vine and no fruit. Other than the fertilizer that is in the potting mix initially I never added any. Someone else might have different experiences with pots.
