I have new proof about Dr. Zomboss's health being less than the Wiki says.
This Video uses only Jalapenos and Ice-shrooms to attack Dr. Zomboss. If you tally the Jalapenos that hit Zomboss, it's 35.
The Ice-shrooms that hit Zomboss are 15.
Add the Ice-shrooms and it's approximately 3,165nds of health, a tiny amount compared to the Wiki's estimation.
1st degrade is after seven Jalapenos and three Ice-shrooms.
2nd degrade is after 17 Jalapenos and seven Ice-shrooms.
3rd degrade (explosion) is after 26 Jalapenos and 13 Ice-shrooms.