She could plant Kudzu, that grows fast.
And it is notable that some of those plants aren’t going to grow AT ALL where they are (bananas and coconuts are cent-percent tropical; coffee needs high tropical ground alone)
Dandelions always grow quick for me.
I’m reminded of SimFarm. I played that in middle school for AgriScience to give us a general idea of what it takes to raise a farm. The results would have been much more to Agnes’ speed, if she had a computer that is.
Plant radish seeds, Agnes. They grow almost anywhere—and fast. But ten hours is pushing it a bit.
Add rows for bird seed, pickles and prunes.
What, no chocolate? (I found a place that sells little chocolate trees. They don’t tell you they don’t include the midges the things need for pollination.)