XANAX (alprazolam) HAS a duration of action of up to 6 hours. If you want to know how long after you take it can it be DETECTED, that's different. Most benzodiazapines, when taken on a regular basis, can be detected in the urine from 24 hours to 72 hours.
The color of that mulch is a dark brown, browner than most brown mulches. I thought it was good mulch until I noticed how large the pieces were. They were similar to large chunks of wood more so than mulch.
Look at the colors of pine bark mulch and cedar mulch. Pine bark mulch is usually dark brown while cedar mulch is reddish brown. Depending on the landscaping theme, plants, outdoor furnishings and your personal preference, a light-or dark-colored mulch may work better.