Board Thread:Plants vs. Zombies Heroes/@comment-24471175-20161013220228/@comment-30317343-20161124023202

Here's the answer that I was looking for:

1rst branch of answers: double cornucopia + 3 team-up plants summoned by the first

2nd branch of answers: cornucopia + poppin' poppies

3rd branch of answers: 3 pairs of pears/shroom for twos.