The pattern of flowers blooming each day indicates that the number of flowers blooming increases by 2 each day.
- On the first day, 2 flowers bloomed.
- On the second day, 4 flowers bloomed, which is \(2 + 2\).
- On the third day, 6 flowers bloomed, which is \(4 + 2\).
Following this pattern for the fourth day, we can expect the number of flowers that bloom to be:
\[ 6 + 2 = 8 \]
Therefore, 8 flowers will bloom on the fourth day.