I'm going through my list of plants I've grown from things I bought at the grocery store, and there's actually a lot of stuff!
Growing seeds collected from floral arrangements.
I bought a few stems of Crested Cocks Comb (Celosia argentea var. cristata) that had already gone to seed, and when the blooms were done in the house, I scattered the seed in the hell strip before throwing the rest on the compost heap. Unfortunately I'd forgotten I'd done this, so I think I might have pulled a few. However, I have a few coming up that managed to escape my weeding!
Saving date seeds and growing palm trees!
I ate off as much of the flesh as possible, soaked the seeds in water for 24-48 hours (changing it occasionally), stuffed them in a baggie filled with damp perlite, and then potted them up once I saw a root growing! You can find more here. Tasty and fun! I told my neighbor about this, and she's doing it as well.
Growing pineapple plants from pineapple tops!
I'm bringing this one back because it's something I'm quite proud of. I just removed all the flesh from the pineapple, removed the lowest leaves which hide the primordial roots, and let them dry out for a week, turned upside down, in the shade. Once dried, I planted them in pots and watered.
More to come!