What are determinate and indeterminate plants

Several of the newer tomato cultivars are determinate (stop elongating early) because the main stem ends in a flower cluster after about four to five clusters. Fruit of determinate cultivars tend to ripen all at one time. They are good to grow when you need large quantities at one timeā€”such as for processing.

Plants of other cultivars are indeterminate (continue to elongate), with the flower clusters giving way to continued extension of the stems. Their fruits ripen throughout the summer. These cultivars are good to grow for fresh use.

Determinate cultivars include Campbell 1327, Celebrity, Floramerica, Heinz 1350, Small Fry and Springset. Indeterminate cultivars include Beefmaster, Better Boy, Big Boy, Early Girl and Jet Star.

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