On a mature vine, look just below the leaf or stem/vine for a small brown root node. These little tubers are the key to propagating pothos. You’ll want to cut off a couple of inches of the healthy stem just before a node and include a node or two with the cutting, as this is where the new roots will come from.
Clean around the rootsRemove any leaves too close to the node, especially those that may be submerged when you place the cutting in your glass container.
Prepare glass jar for cuttingsPlace your plant cutting in your glass container and place it in a location that receives bright to moderate indirect light. Do not place in bright, direct light or super low light.
Keep an eye on your cuttingsThe most difficult step is undoubtedly: be patient! Check root growth from the node weekly. Add fresh, lukewarm water if necessary. You can change the water every few days, or simply refill the tank with fresh water when it looks low – as long as there is no dirt or fungus growing. If the water is cloudy, we recommend changing it for the health of the growing root system.
If you want to transplant your plant cutting from the glass container into a planter with a potting mix, we recommend waiting until the root is at least 1 inch long or longer. This should take 4-6 weeks. Once the cutting’s roots are potted in fresh potting mix, saturate it with room temperature water and place in bright indirect light. Allow the potting mix to dry out between waterings. Read more about houseplants here.
If you want to keep your plant cutting growing in water indefinitely, that’s a perfectly viable option. A word of caution: the longer your plant cutting sits in water, the worse the plant may fare over time. Why? Water has no nutrients and can increase the risk of potential fungal infections. You can help combat this by changing the water regularly and adding a 
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