19 Easy To Grow Greenhouse Plants For Beginners Grow lights can feel intimidating, but they do not have to be. The right light can completely change how your plants grow indoors, from stronger seedlings to healthier houseplants and better harvests. Digitalis grandiflora 'Carillon' (Dwarf Yellow Foxglove) This is the cooliest plant I found in Hawaii! It reacts to your touch by closing its leaves, almost like a venus fly trap! #mimosaplant