My instinct is that the graft should be above the soil level ... but that's just my instinct ... I've never grown grafted tomatoes ... maybe someone else has ...
“I am not lost, for I know where I am. But however, where I am may be lost.” Winnie the Pooh
It’s above soil level, the same depth as the pot they come in if you have bought them from Sutton’s or similar. The plants have exceptional vitality so stake them well.
Posts
Wisdom is not putting it in a fruit salad.