The trick of putting a penny in the vase water? It totally backfired on me.
I saw some old florist online talking about dropping a copper penny in the vase to keep flower stems from rotting. Figured I'd try it with a batch of roses I had last week, about 20 stems for a big order. Dropped three old pre-1982 pennies in the water and left them overnight. Came back the next morning and the water was this weird greenish slime, smelled awful. Turns out the copper reacted with something in my tap water or maybe the flower food I added, and it basically made a sludge that clogged the stems right up. Those roses looked rough by noon, I had to toss half of them. I'm sticking with just clean water and a dash of bleach from now on. Anybody else fall for an old wives tale that wrecked your arrangements?