You know what these are? POTATOES!
in just 4 days! I’m really curious about how they will develop. I pre-sprouted simple, store-bought potatoes on my windowsill for 4-5 days in a bowl of profane dirt from my garden, watering reliably. Then I put them in my pre-made, plain and ordinary potato-growing-buckets and let them grow. Instructions on buckets and growing here , here and here (german): It’s really easy to do and I hope it’ll work out as intended this summer.