Awesome Jim! Being outside I'm surprised it's not pure green soup!
Taliesin, U. gibba was the first CP I ever encountered, I didn't know it was a CP. I was into planted Amano & Dutch inspired nature aquarium fish tanks in the 1990s but this one time I got a bundle of moss that had some strands of this weird green strand with little balls all along it's length. I thought it was neat so I tied it to a log and sunk it in the tank. I thought it was a moss of some sort that would grow over the wood. Instead it shot long filaments out all over the tank winding around in the other plants, knotting up the frilly stuff like Cabomba and Parrots Feather, generally it made a mess of things. I pulled it out as much as I could and each tiny piece that broke off would see the stuff in other parts of the tank... it was a real nightmare! I posted pics of it on aquarium plant forums nobody knew what this insane "string algae" was. Finally I tore the tank down to be rid of any trace of it. Then I got The Savage Garden CP book and saw a picture of U. gibba and knew instantly that that was the horrible "string algae" I had fought for almost a year in my 75 gallon killifish tank.
FYI U. gibba apparently loves high light, CO2 injection, lots of aquatic plant nutrients and live baby brine shrimp! LOL