Q.Can I Use Regular Scissors To Cut Back A Plant ?
I have a beautiful outside plant that has allot of dead growth from our rainy fall & winter , new blossoms are already starting to show but over shadowed by dead stuff.

Certified GKH Gardening Expert
If your scissors are capable of cutting the intended plant, then sure! Just make sure to clean them with alcohol, or soapy water well before doing so. You wouldn't want to introduce anything that would kill your plant.
This article will help: https://www.gardeningknowhow.com/ornamental/flowers/fgen/pruning-garden-plants.htm