70 days.
Feeding Dwarf Tomato Plants
Because roots are restricted in a small pot, it’s important to get the feeding right. Generally, little and often is the best way to feed tomatoes.
For plants with small root areas, regular feeding is even more important because there is less soil and food available. Giving half (or even less) the recommended dose – but fed at every watering is a good way to go. tomatogrowing
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How To Grow Tomatoes In Hanging Baskets And Containers
Indeterminate varieties usually get very tall and have bigger rooting systems, so they aren’t ideal for growing in pots unless you plan on transplanting them to your garden later.
Some varieties are excellent for growing in pots, like smaller, determinate varieties that don’t need a lot of space.
Tomato plants with smaller fruit also typically yield a lot of fruit from one plant. So, even grown in a small pot, a cherry tomato variety, for example, can be very successful and produce several tomatoes.
an expert on growing tomatoes, recommends a 1.5-gallon container for smaller tomato plants, like dwarf bush varieties or upright plants that produce small fruits.

Chenhall swears by feeding his tomatos a little bit more often rather than a large quantity here and there.
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