Propagation is a big word for taking a part of a plant and growing it in a medium to produce a new smaller version of that mother plant. Allow the top of the compost to slightly dry out before watering again. Spider Plant Propagation Is As Easy As 1 2 3 Propagating Plants Spider Plants Spider Plant Propagation However if you choose to fertilize your plant use a soluble fertilizer designed for houseplants and do so every few months. How to care for spider plant rooting . Overwatering can also invite other problems to your spider plant. Signs of Root Rot in Spider Plant Overwatering damages roots by suffocating them and restricting oxygen flow. The only part you want in the water is the root system. Place the spider plant as deep as the roots and cover with soil. You should water your plant every 8 to 14 days depending on how warm bright and humid your house is. When the roots are about 5 cm 2 inches you can put them in soil. If you wish to propagate your spider pla...