I've seen symptoms of iron deficiency this year in some of our perennial beds. I put down some Texas greensand and it cleared it right up. I figured that the other trace minerals in the sand would also be helpful for the plants. I liked it so much, I think I will start to add some to each raised bed in the spring. It took about a week to see results on our perennials, so the ironite might be a faster option as well.
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