Answer: I give all my plants a dose of Ironite every 3-4 months and it really helps green them up. You have to give lantana credit - it thrives under hot, dry conditions, but it still needs a little iron to help it look its best. Depending upon the size of your plant you probably only need a handful to a half-cupful of Ironite. Check the label for exact doses.
Best wishes with your garden!
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