I'm not the plant expert, @Sakura is in our house but she recently got a hydrangea that she is learning how to care for and able to keep out on the balcony vs actually having to plant it in the ground, so she might know how you can do the same and care for it She's taking a break from the site right now however but she'll probably be able to put some easy ways to care for them and keep them small enough to keep in a pot and healthy.