Petunias - Do you pinch off dead blossoms or leave them alone?

Pinch them off for more flower production

Gotta pinch them! keeps them looking good and encourages new blooms! Good luck!

If you would like continuous blooms, you would 'dead head' or pinch off the dead blossoms.

Any type of flower that continues to bloom for a extended time should be dead headed (pinch off dieing flowers), but be aware of the flowers that bloom once and done, should have the rest of the plant to die off natural the spreading of more flowers happen at this time for next season. Also the nutrients from the flower go back down to the bulbs.

Pinch 😀

if they are not Wave petunias, pinch

ok but do I just pull the old dead flower or pinch below?

Pinch below. Don't just pop the blooms off.