It works well for peppers and eggplant.

George
Tahlequah, OK

If they are leggy then yes, you can transplant them deeper with no problems. But the best approach is to prevent the leggy problem in the first place by providing sufficient light. ;) That way you don't have to worry about the issue.

Dave

When my homies lean too much, I add a quarter inch or so of semi-dry seed starting mix to the base to prop them up. With peppers, I always end up potting them up a couple of times, too. By the time they hit the garden, they are in 4-inch pots.

There was a study several years back on planting depth of peppers, I believe in Georgia. Planting to just above the seedling leaves increased yields. The explanation was that getting the roots deeper in the soil insulated them from daytime heating and dry conditions.

Pepper stems don't develop roots on their stems the way tomatoes do, and only rare eggplants root from the basal area of the stem.

Here is a link that might be useful: my website