Thank you for posting and welcome to the community!
We’re glad you got your Pico. We would recommend growing short plants with shallow root systems in PICO. If you want to grow plants with the least effort and time then you should consider growing low-maintenance plants like basil, mint, spinach, or ornamental plants like petunia, pansy, or even succulents like jade, cacti, echeveria, and many more. You can start out either with seeds, seedlings, or a cutting. If you have access to the mother plant, you can start with it but if you don’t, seeds will be a good choice to start with. And if you want to get quick results or growing with kids, I would suggest growing microgreens as they can be eaten in as little as seven days. Hope this will be helpful.