Wasps on balcony wisteria
I have a really fast-growing wisteria right outside my kitchen window, in a small container on a small apartment balcony. The wisteria has attracted a wasp that is present every day and is only interested in that plant. I hesitate to open the window and don't want to disturb the wasp when I water all the plants--sometimes three times a day in this heat.
Any ideas (short of toxic chemicals or throwing out the wisteria) on how I can get rid of this wasp? I only see one of them but there may be more.