Using Mulch To Preserve Moisture

Mulch provides a sort of shield for the roots of the plant. It also lessens the evaporation of water. Our mulch is the weeds that we pull out from the garden. We pile them in a corner. When dried, it is ready for use as mulch. At least there is benefit from the weeds that give us a hard time of pulling. My take on the mulch is that it also has fertilizer no matter how little because decaying grass is a nutrient for plants.

 

There are many many many different types of mulch, weeds are just a little part of it.
There are natural fertilizers such as manure, or also recycled crushed rubber is effective.
Another resource are rocks and gravel, and apparently even shells - of course all of those need to be crushed.
Of course all of those have pros and cons, and it depends on what you need and what's in your garden.