One way to acquire a potato is to get some money, go to a shop, and buy a potato. This is very simple, if rather dull. Another way to acquire a potato is to plant a seed potato in the ground, wait for a couple of months, and then dig in the place you planted the seed. This is also very simple, but much more exciting, as demonstrated by this picture:
Emma and Simon contemplating the magic door to another world: possibly Narnia, or maybe the Aniverse where Bucky O'Hare and Dead Eye Duck engage in the never-ending war against the Toad Menace. Does anybody remember the cartoon Bucky O' Hare? Just me? Never mind.
If you'd like to get involved in future work days at the Trowbridge House or at one of our other community allotment spaces, then please get in touch at firstname.lastname@example.org. All the best, your friend, Sam.