subject: Successful Methods For Watering Orchids [print this page] Lastly, make sure that your orchid is fertilized sparingly. Water soluble fertilizer works best on orchid plants and can be found in any garden shop. It's best to make a monthly watering and fertilizing schedule so your orchid gets the right care it needs (and you get to enjoy them for longer). Your orchid will bloom beautifully if it is given the right amount of attention. Be sure that it receives water, light, bark, and fertilizer in their respective amounts and your orchids will grow into wonderful house plants.