Rose Kyeyune's tomato plants were a foot tall, healthy, vigorous and ready to go into the ground.

But there was no ground left. Normally she would give them away to grateful friends, but these were greenhouse tomatoes, and at the time it was still way too cold to plant them outdoors.

Tomatoes already occupied much of her greenhouse space, and the extra bed she needed contained a crop of baby leaf cutting lettuce and a crop of radishes.

Rather than throw away the plants, she dug holes down the center of the bed and installed the tomatoes. They towered above the carpet of lettuce and radishes like trees above the forest floor.

Tomatoes are starving, thirsty plants that don't like competition, but in this case they were too young to mind the radishes' and lettuce's small root systems. Furthermore, those crops were soon to be harvested, leaving the tomatoes free to 'do their thing'.