Take the plants back to the store and ask for a refund and tell them "These plants are not FULLY aquatic, why do you sell them like they are?" They should give you a refund, just have the receipt. I hate that they sell plants like that as it makes people buy plants that are gonna die and discourage them, until they decide to stop selling plants just do research, it will also help you find the best plants for your tank.
15 Gallon NPT
1g no tech bowl in the making