Never water houseplants according to a schedule :-) Water only as required and that can vary widely by plant type, soil media and the size of the container. The best way of determining when to water is by using a 'tell' or a long wooden skewer that you can insert down into the base of the container. If it comes out completely dry, it's time to water. If it comes out with some soil granules attached, keep an eye on it and evaluate again in a couple of days. If it comes out damp or with the soil firmly attached, wait to water until it dries.

btw, you will get much more detailed info if you were to post your question in the subject appropriate forums.....like the House Plants, Container Gardening or Foliage Plants forums. The two you picked are very generalized, catch-all forums that rarely get attention from the serious gardeners.

Thanks for your reply. i thought I was posting to the Sansevieria Forum. Most of my plants are in the Sansevieria family. I know that putting plants on a watering schedule is not a good idea, but the reason i ask is that I’ve read so many different opinions on watering Sansevierias ranging from once a week to every six weeks i personally use my finger to check the soil again thanks