Answer: Tomatoes thrive in the heat so when the weather cools and nighttime temperatures drop down to about 50F, your plants will slow or stop their production. Tomatoes can actually be perennials if they're planted in a frost-free area. If your garden gets frost, you can just leave the plants alone until frost kills them back; if your garden remains frost free, leave the plants alone until they stop producing flowers, then cut them back to a manageable level. When things warm up, they'll resume growing.
Best wishes with your garden!
Q&A Library Searching Tips