Borax for the garden: a spoon full once a year disolved in a full watering can
I use boron also in my vegetable garden. I add a spoon full of borax to a watering can and I water my vegetable garden with it once a year. I do this in June when the plants are still small. I find that it results in stronger and more resistant vegetables. This summer has been rather rainy and it seems to help when I compare my garden with other gardens in the same neighborhood.