The green thumbs at The Gardener’s Network established Houseplant Appreciation Day to remind people about their indoor botantical buddies after the rush of the holiday season has passed and to celebrate the benefits of houseplants and encourage green thumbs.

And, they’re right. Houseplants deserve a lot of appreciation. If you think about it, they don’t ask for much and they’re very easy to live with. However, this is not true of all plants. Some of them can kill you, like the plant Gelsemium elegans, which a man in China put in a stew to kill a business rival.