Sometimes I try to laugh at the silly goofs I have made, but this time I have a serious warning for you. This was a very bad mistake. A very bad Oops.
In March I left a small bottle of herbicide on my potting bench. I use it to carefully paint the cut stems of the galloping multiflora rose out in the meadow. It's a losing battle as the rose overtakes everything, but I try to control it.
High winds kicked up, the bottle was overturned and blown about the patio, and the cap loosened. The result was a trail of spilled herbicide on the pavers that I didn't see until the next day.
Seeping into the paver sand, and coating the bricks.
You can't clean it off with a strong jet from the hose, that will just wash it into the gardens around the patio.
You can't soak it up with sawdust or dry material, it's already soaked up by the porous pavers.
The dark oily stain remains, streaked down the patio and pooled in the corner, visually reminding me of what a mistake I made leaving a bottle of poison on an open bench during a windstorm.
Planting in potting soil that has traces of herbicide is probably not a good idea.
How long does herbicide persist in an open environment? The oily stain may never go, but does the hazard last very long?
The lesson here is so painfully obvious ---
STORE HAZARDOUS MATERIALS RESPONSIBLY.
Don't leave a tippy bottle of herbicide out on a windy day.
Make sure the cap is on tight wherever you store it.
Don't be lazy about handling poisons.
Don't make a bad mistake like this.