I have land near some county dumpsters. What can I plant to mask the smell of garbage and rotten fish?

I don't want to end up with a cloying mess, but I want to partially hide the dumpsters and mask the yuckky smell. I like lilacs, but I don't know what else would be good. Would bulbs near by but not necessarily next to the dumpsters help or would too many fragrances just become overwhelming?
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