This is a guide on how to create a watering system that will keep the proper moisture for your plant without regular watering.
Ok, in order to do this you need a large pot, preferably clay but plastic works too. It should be at least 4 or 5 gallons, and up to 11 gallons. Use the biggest pot practical because Salvia doesn't like being transferred.
You will need ¼" polyester rope, get enough to spiral through the inside of your pot, plus a little extra. Soak the entire rope in water for 10 min. Then feed the rope through the bottom of the pot so there is only 1-2 feet of rope hanging out the bottom. Put a couple inches of your soil in the bottom of the pot. Spiral the rope laying it on the soil about 1-2 inches from the rim of the pot. When you meet the other end of the rope put another layer of soil on top.
Repeat this until you are close to the height you will plant your clone/cutting. Hold your clone where you want it and continue placing dirt and spiraling your rope around it (make sure not to have the rope touch your clone). Cover the rest of the rope up with soil, you may cut some of the excess rope off if its necessary.
Take the other end of the rope hanging out the bottom of the pot and feed it through a platform of some sort (that the pot will sit on) and into a container. Fill the container with either water or a fertilizer solution. Keep the water level close to the bottom of the pot, the closer it is the more efficient it will be. Give the plant a good watering to start the system.
SourcesEntheogen.com