REFUGEVILLE

AI feel you undersell the real benefit of it, tho. namely that an adult plant will genraly produce multiple fruits or seeds. therefore in a few days, from a single seed you can obtain multyiple which can be then used for regular culture.
the real benefit is not just the trickle of food it is pretty much the ability to make a 'plant" bank which eventualy will let conserve and seed .. well pretty much any plant we encounter, eventualy with proper planning. givent he state of the world, it seems actualy a fairly important concern

Plants need to be fertilized (usually from a partner but some can self-fertilize but it is rare). Wind can account for SOME fertilization, but bees and insects are far more important. To that end, Call of the Wild can be far more useful if agriculture is our aim. The magic may allow a single plant to grow, bloom, and produce seeds but it will likely produce the SAME seed. There would be no change. No passing on of genetics. And it would only work for that time. An apple tree will not produce apples if the blossoms aren't pollinated. So, even planting a fruit tree to grow is limited without the proper ecosystem for it. Almost every edible fruit and vegetable requires fertilization in order to be made. I also undersell the usefulness of Heaven's Rain because our growing area is limited. Call of the Wild is also of limited use for a similar reason, but at least you can kill an animal for more food than a plant.

That being said, they're all useful abilities and we each have our preferences.