Season of Growth

• WOTC Official Reminder Textofficial rules
  Scry — Look at the top N cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.

• WWizards of the Coast2019-07-12
  Official Ruling
  If multiple creatures enter the battlefield under your control simultaneously, you’ll scry 1 for each of those creatures. You won’t look at more than one card from your library at once.
• WWizards of the Coast2019-07-12
  Official Ruling
  Season of Growth’s last ability triggers when you cast a spell that has multiple targets, as long as at least one of those targets is a creature you control. It doesn’t trigger multiple times if you cast a spell that targets a creature you control multiple times or that targets multiple creatures you control.
• WWizards of the Coast2019-07-12
  Official Ruling
  Season of Growth’s last ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.

Rulings via Scryfall