The spelling of "dis plants" might be confusing at first glance, but it can be easily understood through IPA phonetic transcription. The word is pronounced as /dɪs/ /plænts/, with "dis" being short for "disadvantageous". The letter "s" at the end of "dis" is pronounced as /z/ due to the following vowel sound in "plants". Thus, the correct spelling is "disadvantageous plants", with the "s" at the end of "dis" silent when pronounced.