Level 20

Difficulty

 * Again, this is a consolidation level, only plants that introduces episode 2 has apart from sun production ones. Later episodes may also do different consolidation system.
 * No sun. You plant plants freely but please only plant those three recommended plants.
 * Only cat layers 5-8 appear here since it is a consolidation level

Strategy

 * Nothing. Just plant plants. If things get out of control, plant coffee beans and icy beans to help the progress.