maybe I can buy a few big helium balloons and drop a small bag of a few thousand from – maybe 500 feet?
Edit: (24 days later) I have my first few “volunteers.” From the “Acer platanoides,” (the ubiquitous, serendipitous, deciduous….......Norway Maple) (“serendipitous” because it was one of my favorite childhood climbs.)
Not many right now, just a pocketfull; but that may change soon…that tree is llllloaded with seeds! “llllloaded” 2 years ago

drop a million helicopter seeds from about 25,000 feet

Then maybe skydive and parachute down along with them. 3 years ago