house plant

/HH AW1 S P L AE0 N T/
noun
  1. 1

    A plant that is grown indoors in places such as a house or office for decorative purposes.

    โ€œHerbert thought that adding some houseplants would brighten up his desk.โ€

  2. 2

    A variety of plant that is especially suited to such cultivation, or that is frequently grown in such settings.

    โ€œ"I always thought a begonia was a houseplant!" exclaimed Sue, staring at the towering tropical specimen.โ€

Source: https://en.wiktionary.org/wiki/house%20plant, https://en.wiktionary.org/wiki/houseplant