What Is Mulching?
What and how does one mulch and how does one prune?
Certified GKH Gardening Expert
Mulch helps eliminate or lessen the amount of weed growth, retains soil moisture, and insulates plants. There are various types to choose from, though they generally fall into two categories: organic and non-organic. These articles will help: https://www.gardeningknowhow.com/garden-how-to/info/whats-the-best-mulch-for-my-garden.htm
As for pruning, this typically involves the cutting away of branches on a plant, normally a tree or shrub, in order to achieve an end goal. This goal can be things like shaping a plant, encouraging new growth or increasing fruit production. How and when to prune plants is normally dependent upon the type of plant you are wanting to prune.