Answer: Yes, there are certainly semi-determinate types, and these usually grow 18-24 inches high. They perform best if caged or trellised just like indeterminate tomatoes.
If your determinate and semi-determinate plants are staked or caged, space the plants 1 1/2 to two feet apart. If you're allowing them to sprawl, plant them three to four feet apart. For indeterminate tomatoes, space the cages about four feet apart. Hope this helps!
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