There’s a plant called the “TomTato” which is a cherry tomato plant with potatoes as roots. It yields large quantities of both tomatoes and spuds.
OK BUT YOU LEFT OUT THAT THEY CALL IT “KETCHUP N’ FRIES” IN MARKETING.
the fun thing about this is while it may be marketed ts you can do this yourself. it usually comes as grown seedlings or potted plant if its the genuine deal and not fake amazon seeds (fake seeds and seed scams are a big thing on amazon). but anyways these plants are made via grafting which is really pretty simple.
right now late june might be too late to try this out and get good results BUT. pick out any variety of tomato plant you like best. i prefer a good slicing tomato for sandwiches, not cherry tomatoes. any thing like Better Boy or even Black Cherokee is tasty. the other part is choosing a potato plant. you got to pick out a potato you like too. this has to be done before either plant starts fruiting or blossoming in the spring.
here’s you a video how to assemble your Frankenstein plant :D
“sometimes you can just tape two sorta-related plants together and get double crop frankenplant” is one of my favorite biology hacks.