Zucchini

Unlocks once you've harvested 410 Watermelon, 170 Blue Grapes, 140 Green Grapes and 150 Rhubarb in all; unlocking it is then free.

A seed costs 75 spare parts and grows for 13m 18s (10m 38s on fertilized soil), needing water 9 times on the way: it stops growing until it's watered. It gives 17 harvests, growing back from scratch after each one.

Each harvest is one Zucchini and 22 spare parts: 374 from one seed, 299 more than it cost, over 3h 46m of growing. In a Biofuel Converter each one is worth 16 biofuel.

On some patch tiles a ripe Zucchini can grow into a giant one instead (1 in 250), worth four crops for each tile it covers but no spare parts; it ends the seed's harvests and clears what grew under it.

A Reaper chip can improve its grow time, watering, harvests, biofuel or earnings.