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Effect of rust (iron oxide, not the disease) on plants?

The only decent sunny spot for me to plant a containerized veggie garden is underneath a rusting fire escape. There is obviously rust run-off when it rains. I can see rust stains built up on the walkway. Will the rust have any harmful effects on the plants or on the food they produce?

Public Comments

1. None what so ever. happy gardening.
2. df