copper doesn't kill tomato plants
I tried the variation of copper wire jammed into the stem.
The plant heals around the wound and no longer makes good contact.
Any benefit would be short lived.
If you really love to experiment,jam a galvanized nail in also,you can make a 1 cell battery
out of your plant.String plants together and you can have a garden powered led nightlight.
the copper/zinc combo makes a battery.copper positive zinc negative.
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