This coming Saturday, June 23, is the first annual
International Ragweed Day!!!
Whether you're battling Common Ragweed (
Ambrosia artemisiifolia) or Giant Ragweed (
Ambrosia trifida) or any of the other 39 species, this date has been chosen for Ragweed Day because the stuff has not yet begun blooming for the year (provided you're in the northern hemisphere -- I guess that's a pretty big assumption). That means there's still time to get rid of it before hayfever season starts and makes hundreds of millions of people miserable.
Now, I know eradicating a species is not very permacultural. But how about harvesting it? My own experiments over the past four years have demonstrated that giant ragweed makes an exceptional sheet mulch material, breaking down completely in as little as 3 months (July-October) when kept moist. Why not take this opportunity to harvest all the ragweed in your neighborhood and build lots of sheet mulch beds for yourself and your neighbors? That's what I'll be doing.
Let me know what you think, what you try, and how it goes!