I have been having bad luck staking my peppers and tomatoes. I tie them and they are fine until a good rain or wind. Then they keel over. I am using plastic coated steel stakes that are about 3/8 inch thick. I put the stake about 3 inchs from the plant and tie it. It seems that the loop in the material I use to tie is too large since the stake is 3 inchs away from the stalk and the plant has too much room to move. How close can I put the stake to the stalk with out damaging roots?